Revert "HDFS-9820. Improve distcp to support efficient restore to an earlier snapshot. Contributed by Yongjun Zhang."
This reverts commit 412c4c9a34.
This commit is contained in:
Yongjun Zhang
parent
b61fb267b9
commit
0bc6d37f3c
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@ -44,49 +44,28 @@ public int compare(DiffInfo d1, DiffInfo d2) {
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};
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/** The source file/dir of the rename or deletion op */
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private Path source;
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/** The target file/dir of the rename op. Null means the op is deletion. */
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private Path target;
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private SnapshotDiffReport.DiffType type;
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final Path source;
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/**
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* The intermediate file/dir for the op. For a rename or a delete op,
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* we first rename the source to this tmp file/dir.
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*/
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private Path tmp;
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/** The target file/dir of the rename op. Null means the op is deletion. */
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Path target;
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DiffInfo(final Path source, final Path target,
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SnapshotDiffReport.DiffType type) {
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private final SnapshotDiffReport.DiffType type;
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public SnapshotDiffReport.DiffType getType(){
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return this.type;
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}
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DiffInfo(Path source, Path target, SnapshotDiffReport.DiffType type) {
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assert source != null;
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this.source = source;
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this.target= target;
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this.type = type;
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}
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void setSource(final Path source) {
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this.source = source;
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}
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Path getSource() {
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return source;
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}
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void setTarget(final Path target) {
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this.target = target;
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}
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Path getTarget() {
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return target;
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}
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public void setType(final SnapshotDiffReport.DiffType type){
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this.type = type;
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}
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public SnapshotDiffReport.DiffType getType(){
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return type;
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}
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void setTmp(Path tmp) {
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this.tmp = tmp;
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}
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@ -94,10 +73,4 @@ void setTmp(Path tmp) {
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Path getTmp() {
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return tmp;
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}
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@Override
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public String toString() {
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return type + ": src=" + String.valueOf(source) + " tgt="
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+ String.valueOf(target) + " tmp=" + String.valueOf(tmp);
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}
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}
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@ -77,21 +77,6 @@ public class DistCp extends Configured implements Tool {
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private boolean submitted;
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private FileSystem jobFS;
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private void prepareFileListing(Job job) throws Exception {
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if (inputOptions.shouldUseSnapshotDiff()) {
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try {
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DistCpSync distCpSync = new DistCpSync(inputOptions, getConf());
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distCpSync.sync();
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createInputFileListingWithDiff(job, distCpSync);
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} catch (IOException e) {
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throw new Exception("DistCp"
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+ " sync failed, input options: " + inputOptions, e);
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}
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} else {
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createInputFileListing(job);
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}
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}
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/**
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* Public Constructor. Creates DistCp object with specified input-parameters.
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* (E.g. source-paths, target-location, etc.)
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@ -191,7 +176,21 @@ public Job createAndSubmitJob() throws Exception {
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jobFS = metaFolder.getFileSystem(getConf());
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job = createJob();
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}
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prepareFileListing(job);
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if (inputOptions.shouldUseDiff()) {
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DistCpSync distCpSync = new DistCpSync(inputOptions, getConf());
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if (distCpSync.sync()) {
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createInputFileListingWithDiff(job, distCpSync);
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} else {
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throw new Exception("DistCp sync failed, input options: "
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+ inputOptions);
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}
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}
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// Fallback to default DistCp if without "diff" option or sync failed.
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if (!inputOptions.shouldUseDiff()) {
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createInputFileListing(job);
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}
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job.submit();
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submitted = true;
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} finally {
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@ -201,8 +200,7 @@ public Job createAndSubmitJob() throws Exception {
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}
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String jobID = job.getJobID().toString();
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job.getConfiguration().set(DistCpConstants.CONF_LABEL_DISTCP_JOB_ID,
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jobID);
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job.getConfiguration().set(DistCpConstants.CONF_LABEL_DISTCP_JOB_ID, jobID);
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LOG.info("DistCp job-id: " + jobID);
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return job;
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@ -59,7 +59,6 @@ public class DistCpConstants {
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public static final String CONF_LABEL_OVERWRITE = "distcp.copy.overwrite";
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public static final String CONF_LABEL_APPEND = "distcp.copy.append";
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public static final String CONF_LABEL_DIFF = "distcp.copy.diff";
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public static final String CONF_LABEL_RDIFF = "distcp.copy.rdiff";
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public static final String CONF_LABEL_BANDWIDTH_MB = "distcp.map.bandwidth.mb";
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public static final String CONF_LABEL_SIMPLE_LISTING_FILESTATUS_SIZE =
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"distcp.simplelisting.file.status.size";
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@ -150,11 +150,6 @@ public enum DistCpOptionSwitch {
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"Use snapshot diff report to identify the difference between source and target"),
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2),
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RDIFF(DistCpConstants.CONF_LABEL_RDIFF,
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new Option("rdiff", false,
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"Use target snapshot diff report to identify changes made on target"),
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2),
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/**
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* Should DisctpExecution be blocking
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*/
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@ -18,7 +18,6 @@
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package org.apache.hadoop.tools;
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import org.apache.commons.lang.StringUtils;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.tools.util.DistCpUtils;
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@ -43,29 +42,8 @@ public class DistCpOptions {
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private boolean append = false;
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private boolean skipCRC = false;
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private boolean blocking = true;
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// When "-diff s1 s2 src tgt" is passed, apply forward snapshot diff (from s1
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// to s2) of source cluster to the target cluster to sync target cluster with
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// the source cluster. Referred to as "Fdiff" in the code.
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// It's required that s2 is newer than s1.
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private boolean useDiff = false;
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// When "-rdiff s2 s1 src tgt" is passed, apply reversed snapshot diff (from
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// s2 to s1) of target cluster to the target cluster, so to make target
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// cluster go back to s1. Referred to as "Rdiff" in the code.
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// It's required that s2 is newer than s1, and src and tgt have exact same
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// content at their s1, if src is not the same as tgt.
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private boolean useRdiff = false;
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// For both -diff and -rdiff, given the example command line switches, two
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// steps are taken:
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// 1. Sync Step. This step does renaming/deletion ops in the snapshot diff,
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// so to avoid copying files copied already but renamed later(HDFS-7535)
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// 2. Copy Step. This step copy the necessary files from src to tgt
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// 2.1 For -diff, it copies from snapshot s2 of src (HDFS-8828)
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// 2.2 For -rdiff, it copies from snapshot s1 of src, where the src
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// could be the tgt itself (HDFS-9820).
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//
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public static final int maxNumListstatusThreads = 40;
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private int numListstatusThreads = 0; // Indicates that flag is not set.
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private int maxMaps = DistCpConstants.DEFAULT_MAPS;
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@ -151,8 +129,6 @@ public DistCpOptions(DistCpOptions that) {
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this.overwrite = that.overwrite;
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this.skipCRC = that.skipCRC;
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this.blocking = that.blocking;
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this.useDiff = that.useDiff;
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this.useRdiff = that.useRdiff;
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this.numListstatusThreads = that.numListstatusThreads;
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this.maxMaps = that.maxMaps;
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this.mapBandwidth = that.mapBandwidth;
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@ -297,14 +273,6 @@ public boolean shouldUseDiff() {
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return this.useDiff;
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}
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public boolean shouldUseRdiff() {
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return this.useRdiff;
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}
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public boolean shouldUseSnapshotDiff() {
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return shouldUseDiff() || shouldUseRdiff();
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}
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public String getFromSnapshot() {
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return this.fromSnapshot;
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}
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@ -313,16 +281,14 @@ public String getToSnapshot() {
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return this.toSnapshot;
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}
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public void setUseDiff(String fromSS, String toSS) {
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this.useDiff = true;
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this.fromSnapshot = fromSS;
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this.toSnapshot = toSS;
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public void setUseDiff(boolean useDiff, String fromSnapshot, String toSnapshot) {
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this.useDiff = useDiff;
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this.fromSnapshot = fromSnapshot;
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this.toSnapshot = toSnapshot;
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}
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public void setUseRdiff(String fromSS, String toSS) {
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this.useRdiff = true;
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this.fromSnapshot = fromSS;
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this.toSnapshot = toSS;
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public void disableUsingDiff() {
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this.useDiff = false;
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}
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/**
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@ -579,12 +545,11 @@ public final void setFiltersFile(String filtersFilename) {
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}
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void validate() {
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if ((useDiff || useRdiff) && deleteMissing) {
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// -delete and -diff/-rdiff are mutually exclusive. For backward
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// compatibility, we ignore the -delete option here, instead of throwing
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// an IllegalArgumentException. See HDFS-10397 for more discussion.
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OptionsParser.LOG.warn(
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"-delete and -diff/-rdiff are mutually exclusive. " +
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if (useDiff && deleteMissing) {
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// -delete and -diff are mutually exclusive. For backward compatibility,
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// we ignore the -delete option here, instead of throwing an
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// IllegalArgumentException. See HDFS-10397 for more discussion.
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OptionsParser.LOG.warn("-delete and -diff are mutually exclusive. " +
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"The -delete option will be ignored.");
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setDeleteMissing(false);
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}
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@ -616,29 +581,16 @@ void validate() {
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throw new IllegalArgumentException(
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"Append is disallowed when skipping CRC");
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}
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if (!syncFolder && (useDiff || useRdiff)) {
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if (!syncFolder && useDiff) {
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throw new IllegalArgumentException(
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"-diff/-rdiff is valid only with -update option");
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}
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if (useDiff || useRdiff) {
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if (StringUtils.isBlank(fromSnapshot) ||
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StringUtils.isBlank(toSnapshot)) {
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throw new IllegalArgumentException(
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"Must provide both the starting and ending " +
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"snapshot names for -diff/-rdiff");
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}
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}
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if (useDiff && useRdiff) {
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throw new IllegalArgumentException(
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"-diff and -rdiff are mutually exclusive");
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"Diff is valid only with update options");
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}
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}
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/**
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* Add options to configuration. These will be used in the Mapper/committer
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*
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* @param conf - Configuration object to which the options need to be added
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* @param conf - Configruation object to which the options need to be added
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*/
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public void appendToConf(Configuration conf) {
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DistCpOptionSwitch.addToConf(conf, DistCpOptionSwitch.ATOMIC_COMMIT,
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@ -655,8 +607,6 @@ public void appendToConf(Configuration conf) {
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String.valueOf(append));
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DistCpOptionSwitch.addToConf(conf, DistCpOptionSwitch.DIFF,
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String.valueOf(useDiff));
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DistCpOptionSwitch.addToConf(conf, DistCpOptionSwitch.RDIFF,
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String.valueOf(useRdiff));
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DistCpOptionSwitch.addToConf(conf, DistCpOptionSwitch.SKIP_CRC,
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String.valueOf(skipCRC));
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if (mapBandwidth > 0) {
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@ -686,7 +636,6 @@ public String toString() {
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", overwrite=" + overwrite +
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", append=" + append +
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", useDiff=" + useDiff +
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", useRdiff=" + useRdiff +
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", fromSnapshot=" + fromSnapshot +
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", toSnapshot=" + toSnapshot +
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", skipCRC=" + skipCRC +
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@ -50,11 +50,6 @@
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class DistCpSync {
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private DistCpOptions inputOptions;
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private Configuration conf;
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// diffMap maps snapshot diff op type to a list of diff ops.
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// It's initially created based on the snapshot diff. Then the individual
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// diff stored there maybe modified instead of copied by the distcp algorithm
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// afterwards, for better performance.
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//
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private EnumMap<SnapshotDiffReport.DiffType, List<DiffInfo>> diffMap;
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private DiffInfo[] renameDiffs;
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@ -63,10 +58,6 @@ class DistCpSync {
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this.conf = conf;
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}
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private boolean isRdiff() {
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return inputOptions.shouldUseRdiff();
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}
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/**
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* Check if three conditions are met before sync.
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* 1. Only one source directory.
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@ -86,25 +77,21 @@ private boolean preSyncCheck() throws IOException {
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final Path sourceDir = sourcePaths.get(0);
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final Path targetDir = inputOptions.getTargetPath();
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final FileSystem srcFs = sourceDir.getFileSystem(conf);
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final FileSystem tgtFs = targetDir.getFileSystem(conf);
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final FileSystem snapshotDiffFs = isRdiff() ? tgtFs : srcFs;
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final Path snapshotDiffDir = isRdiff() ? targetDir : sourceDir;
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final FileSystem sfs = sourceDir.getFileSystem(conf);
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final FileSystem tfs = targetDir.getFileSystem(conf);
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// currently we require both the source and the target file system are
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// DistributedFileSystem.
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if (!(srcFs instanceof DistributedFileSystem) ||
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!(tgtFs instanceof DistributedFileSystem)) {
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if (!(sfs instanceof DistributedFileSystem) ||
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!(tfs instanceof DistributedFileSystem)) {
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throw new IllegalArgumentException("The FileSystems needs to" +
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" be DistributedFileSystem for using snapshot-diff-based distcp");
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}
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final DistributedFileSystem targetFs = (DistributedFileSystem) tgtFs;
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final DistributedFileSystem targetFs = (DistributedFileSystem) tfs;
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// make sure targetFS has no change between from and the current states
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if (!checkNoChange(targetFs, targetDir)) {
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// set the source path using the snapshot path
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inputOptions.setSourcePaths(Arrays.asList(getSnapshotPath(sourceDir,
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inputOptions.setSourcePaths(Arrays.asList(getSourceSnapshotPath(sourceDir,
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inputOptions.getToSnapshot())));
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return false;
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}
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@ -114,28 +101,18 @@ private boolean preSyncCheck() throws IOException {
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try {
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final FileStatus fromSnapshotStat =
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snapshotDiffFs.getFileStatus(getSnapshotPath(snapshotDiffDir, from));
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sfs.getFileStatus(getSourceSnapshotPath(sourceDir, from));
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final FileStatus toSnapshotStat =
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snapshotDiffFs.getFileStatus(getSnapshotPath(snapshotDiffDir, to));
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sfs.getFileStatus(getSourceSnapshotPath(sourceDir, to));
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if (isRdiff()) {
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// If fromSnapshot isn't current dir then do a time check
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if (!from.equals("")
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&& fromSnapshotStat.getModificationTime() < toSnapshotStat
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.getModificationTime()) {
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throw new HadoopIllegalArgumentException("Snapshot " + from
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+ " should be newer than " + to);
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}
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} else {
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// If toSnapshot isn't current dir then do a time check
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if(!to.equals("")
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if (!to.equals("")
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&& fromSnapshotStat.getModificationTime() > toSnapshotStat
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.getModificationTime()) {
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throw new HadoopIllegalArgumentException("Snapshot " + to
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+ " should be newer than " + from);
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}
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}
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} catch (FileNotFoundException nfe) {
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throw new InvalidInputException("Input snapshot is not found", nfe);
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}
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@ -161,8 +138,7 @@ public boolean sync() throws IOException {
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Path tmpDir = null;
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try {
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tmpDir = createTargetTmpDir(targetFs, targetDir);
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DiffInfo[] renameAndDeleteDiffs =
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getRenameAndDeleteDiffsForSync(targetDir);
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DiffInfo[] renameAndDeleteDiffs = getRenameAndDeleteDiffs(targetDir);
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if (renameAndDeleteDiffs.length > 0) {
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// do the real sync work: deletion and rename
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syncDiff(renameAndDeleteDiffs, targetFs, tmpDir);
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@ -175,7 +151,7 @@ public boolean sync() throws IOException {
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deleteTargetTmpDir(targetFs, tmpDir);
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// TODO: since we have tmp directory, we can support "undo" with failures
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// set the source path using the snapshot path
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inputOptions.setSourcePaths(Arrays.asList(getSnapshotPath(sourceDir,
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inputOptions.setSourcePaths(Arrays.asList(getSourceSnapshotPath(sourceDir,
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inputOptions.getToSnapshot())));
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}
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}
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@ -186,16 +162,16 @@ public boolean sync() throws IOException {
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* no entry for a given DiffType, the associated value will be an empty list.
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*/
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private boolean getAllDiffs() throws IOException {
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Path ssDir = isRdiff()?
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inputOptions.getTargetPath() : inputOptions.getSourcePaths().get(0);
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List<Path> sourcePaths = inputOptions.getSourcePaths();
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final Path sourceDir = sourcePaths.get(0);
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try {
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DistributedFileSystem fs =
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(DistributedFileSystem) ssDir.getFileSystem(conf);
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(DistributedFileSystem) sourceDir.getFileSystem(conf);
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final String from = getSnapshotName(inputOptions.getFromSnapshot());
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final String to = getSnapshotName(inputOptions.getToSnapshot());
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SnapshotDiffReport report = fs.getSnapshotDiffReport(ssDir,
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SnapshotDiffReport report = fs.getSnapshotDiffReport(sourceDir,
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from, to);
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this.diffMap = new EnumMap<>(SnapshotDiffReport.DiffType.class);
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for (SnapshotDiffReport.DiffType type :
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SnapshotDiffReport.DiffType.values()) {
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@ -209,25 +185,25 @@ private boolean getAllDiffs() throws IOException {
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if (entry.getSourcePath().length <= 0) {
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continue;
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}
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SnapshotDiffReport.DiffType dt = entry.getType();
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List<DiffInfo> list = diffMap.get(dt);
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if (dt == SnapshotDiffReport.DiffType.MODIFY ||
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dt == SnapshotDiffReport.DiffType.CREATE ||
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dt == SnapshotDiffReport.DiffType.DELETE) {
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List<DiffInfo> list = diffMap.get(entry.getType());
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if (entry.getType() == SnapshotDiffReport.DiffType.MODIFY ||
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entry.getType() == SnapshotDiffReport.DiffType.CREATE ||
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entry.getType() == SnapshotDiffReport.DiffType.DELETE) {
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||||
final Path source =
|
||||
new Path(DFSUtilClient.bytes2String(entry.getSourcePath()));
|
||||
list.add(new DiffInfo(source, null, dt));
|
||||
} else if (dt == SnapshotDiffReport.DiffType.RENAME) {
|
||||
list.add(new DiffInfo(source, null, entry.getType()));
|
||||
} else if (entry.getType() == SnapshotDiffReport.DiffType.RENAME) {
|
||||
final Path source =
|
||||
new Path(DFSUtilClient.bytes2String(entry.getSourcePath()));
|
||||
final Path target =
|
||||
new Path(DFSUtilClient.bytes2String(entry.getTargetPath()));
|
||||
list.add(new DiffInfo(source, target, dt));
|
||||
list.add(new DiffInfo(source, target, entry.getType()));
|
||||
}
|
||||
}
|
||||
return true;
|
||||
} catch (IOException e) {
|
||||
DistCp.LOG.warn("Failed to compute snapshot diff on " + ssDir, e);
|
||||
DistCp.LOG.warn("Failed to compute snapshot diff on " + sourceDir, e);
|
||||
}
|
||||
this.diffMap = null;
|
||||
return false;
|
||||
|
|
@ -237,11 +213,11 @@ private String getSnapshotName(String name) {
|
|||
return Path.CUR_DIR.equals(name) ? "" : name;
|
||||
}
|
||||
|
||||
private Path getSnapshotPath(Path inputDir, String snapshotName) {
|
||||
private Path getSourceSnapshotPath(Path sourceDir, String snapshotName) {
|
||||
if (Path.CUR_DIR.equals(snapshotName)) {
|
||||
return inputDir;
|
||||
return sourceDir;
|
||||
} else {
|
||||
return new Path(inputDir,
|
||||
return new Path(sourceDir,
|
||||
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + snapshotName);
|
||||
}
|
||||
}
|
||||
|
|
@ -273,9 +249,8 @@ private void deleteTargetTmpDir(DistributedFileSystem targetFs,
|
|||
*/
|
||||
private boolean checkNoChange(DistributedFileSystem fs, Path path) {
|
||||
try {
|
||||
final String from = getSnapshotName(inputOptions.getFromSnapshot());
|
||||
SnapshotDiffReport targetDiff =
|
||||
fs.getSnapshotDiffReport(path, from, "");
|
||||
fs.getSnapshotDiffReport(path, inputOptions.getFromSnapshot(), "");
|
||||
if (!targetDiff.getDiffList().isEmpty()) {
|
||||
DistCp.LOG.warn("The target has been modified since snapshot "
|
||||
+ inputOptions.getFromSnapshot());
|
||||
|
|
@ -284,8 +259,7 @@ private boolean checkNoChange(DistributedFileSystem fs, Path path) {
|
|||
return true;
|
||||
}
|
||||
} catch (IOException e) {
|
||||
DistCp.LOG.warn("Failed to compute snapshot diff on " + path
|
||||
+ " at snapshot " + inputOptions.getFromSnapshot(), e);
|
||||
DistCp.LOG.warn("Failed to compute snapshot diff on " + path, e);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
|
@ -307,13 +281,12 @@ private void moveToTmpDir(DiffInfo[] diffs,
|
|||
Arrays.sort(diffs, DiffInfo.sourceComparator);
|
||||
Random random = new Random();
|
||||
for (DiffInfo diff : diffs) {
|
||||
Path tmpTarget = new Path(tmpDir, diff.getSource().getName());
|
||||
Path tmpTarget = new Path(tmpDir, diff.source.getName());
|
||||
while (targetFs.exists(tmpTarget)) {
|
||||
tmpTarget = new Path(tmpDir,
|
||||
diff.getSource().getName() + random.nextInt());
|
||||
tmpTarget = new Path(tmpDir, diff.source.getName() + random.nextInt());
|
||||
}
|
||||
diff.setTmp(tmpTarget);
|
||||
targetFs.rename(diff.getSource(), tmpTarget);
|
||||
targetFs.rename(diff.source, tmpTarget);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -327,11 +300,11 @@ private void moveToTarget(DiffInfo[] diffs,
|
|||
// directories are created first.
|
||||
Arrays.sort(diffs, DiffInfo.targetComparator);
|
||||
for (DiffInfo diff : diffs) {
|
||||
if (diff.getTarget() != null) {
|
||||
if (!targetFs.exists(diff.getTarget().getParent())) {
|
||||
targetFs.mkdirs(diff.getTarget().getParent());
|
||||
if (diff.target != null) {
|
||||
if (!targetFs.exists(diff.target.getParent())) {
|
||||
targetFs.mkdirs(diff.target.getParent());
|
||||
}
|
||||
targetFs.rename(diff.getTmp(), diff.getTarget());
|
||||
targetFs.rename(diff.getTmp(), diff.target);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -340,80 +313,17 @@ private void moveToTarget(DiffInfo[] diffs,
|
|||
* Get rename and delete diffs and add the targetDir as the prefix of their
|
||||
* source and target paths.
|
||||
*/
|
||||
private DiffInfo[] getRenameAndDeleteDiffsForSync(Path targetDir) {
|
||||
// NOTE: when HDFS-10263 is done, getRenameAndDeleteDiffsRdiff
|
||||
// should be the same as getRenameAndDeleteDiffsFdiff. Specifically,
|
||||
// we should just move the body of getRenameAndDeleteDiffsFdiff
|
||||
// to here and remove both getRenameAndDeleteDiffsFdiff
|
||||
// and getRenameAndDeleteDiffsDdiff.
|
||||
if (isRdiff()) {
|
||||
return getRenameAndDeleteDiffsRdiff(targetDir);
|
||||
} else {
|
||||
return getRenameAndDeleteDiffsFdiff(targetDir);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get rename and delete diffs and add the targetDir as the prefix of their
|
||||
* source and target paths.
|
||||
*/
|
||||
private DiffInfo[] getRenameAndDeleteDiffsRdiff(Path targetDir) {
|
||||
List<DiffInfo> renameDiffsList =
|
||||
diffMap.get(SnapshotDiffReport.DiffType.RENAME);
|
||||
|
||||
// Prepare a renameDiffArray for translating deleted items below.
|
||||
// Do a reversion here due to HDFS-10263.
|
||||
List<DiffInfo> renameDiffsListReversed =
|
||||
new ArrayList<DiffInfo>(renameDiffsList.size());
|
||||
for (DiffInfo diff : renameDiffsList) {
|
||||
renameDiffsListReversed.add(new DiffInfo(diff.getTarget(),
|
||||
diff.getSource(), diff.getType()));
|
||||
}
|
||||
DiffInfo[] renameDiffArray =
|
||||
renameDiffsListReversed.toArray(new DiffInfo[renameDiffsList.size()]);
|
||||
|
||||
Arrays.sort(renameDiffArray, DiffInfo.sourceComparator);
|
||||
|
||||
List<DiffInfo> renameAndDeleteDiff = new ArrayList<>();
|
||||
// Traverse DELETE list, which we need to delete them in sync process.
|
||||
// Use the renameDiffArray prepared to translate the path.
|
||||
for (DiffInfo diff : diffMap.get(SnapshotDiffReport.DiffType.DELETE)) {
|
||||
DiffInfo renameItem = getRenameItem(diff, renameDiffArray);
|
||||
Path source;
|
||||
if (renameItem != null) {
|
||||
source = new Path(targetDir,
|
||||
translateRenamedPath(diff.getSource(), renameItem));
|
||||
} else {
|
||||
source = new Path(targetDir, diff.getSource());
|
||||
}
|
||||
renameAndDeleteDiff.add(new DiffInfo(source, null,
|
||||
SnapshotDiffReport.DiffType.DELETE));
|
||||
}
|
||||
for (DiffInfo diff : diffMap.get(SnapshotDiffReport.DiffType.RENAME)) {
|
||||
// swap target and source here for Rdiff
|
||||
Path source = new Path(targetDir, diff.getSource());
|
||||
Path target = new Path(targetDir, diff.getTarget());
|
||||
renameAndDeleteDiff.add(new DiffInfo(source, target, diff.getType()));
|
||||
}
|
||||
return renameAndDeleteDiff.toArray(
|
||||
new DiffInfo[renameAndDeleteDiff.size()]);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get rename and delete diffs and add the targetDir as the prefix of their
|
||||
* source and target paths.
|
||||
*/
|
||||
private DiffInfo[] getRenameAndDeleteDiffsFdiff(Path targetDir) {
|
||||
private DiffInfo[] getRenameAndDeleteDiffs(Path targetDir) {
|
||||
List<DiffInfo> renameAndDeleteDiff = new ArrayList<>();
|
||||
for (DiffInfo diff : diffMap.get(SnapshotDiffReport.DiffType.DELETE)) {
|
||||
Path source = new Path(targetDir, diff.getSource());
|
||||
renameAndDeleteDiff.add(new DiffInfo(source, diff.getTarget(),
|
||||
Path source = new Path(targetDir, diff.source);
|
||||
renameAndDeleteDiff.add(new DiffInfo(source, diff.target,
|
||||
diff.getType()));
|
||||
}
|
||||
|
||||
for (DiffInfo diff : diffMap.get(SnapshotDiffReport.DiffType.RENAME)) {
|
||||
Path source = new Path(targetDir, diff.getSource());
|
||||
Path target = new Path(targetDir, diff.getTarget());
|
||||
Path source = new Path(targetDir, diff.source);
|
||||
Path target = new Path(targetDir, diff.target);
|
||||
renameAndDeleteDiff.add(new DiffInfo(source, target, diff.getType()));
|
||||
}
|
||||
|
||||
|
|
@ -457,7 +367,7 @@ private boolean isParentOf(Path parent, Path child) {
|
|||
*/
|
||||
private DiffInfo getRenameItem(DiffInfo diff, DiffInfo[] renameDiffArray) {
|
||||
for (DiffInfo renameItem : renameDiffArray) {
|
||||
if (diff.getSource().equals(renameItem.getSource())) {
|
||||
if (diff.source.equals(renameItem.source)) {
|
||||
// The same path string may appear in:
|
||||
// 1. both renamed and modified snapshot diff entries.
|
||||
// 2. both renamed and created snapshot diff entries.
|
||||
|
|
@ -467,7 +377,7 @@ private DiffInfo getRenameItem(DiffInfo diff, DiffInfo[] renameDiffArray) {
|
|||
if (diff.getType() == SnapshotDiffReport.DiffType.MODIFY) {
|
||||
return renameItem;
|
||||
}
|
||||
} else if (isParentOf(renameItem.getSource(), diff.getSource())) {
|
||||
} else if (isParentOf(renameItem.source, diff.source)) {
|
||||
// If rename entry is the parent of diff entry, then both MODIFY and
|
||||
// CREATE diff entries should be handled.
|
||||
return renameItem;
|
||||
|
|
@ -477,27 +387,16 @@ private DiffInfo getRenameItem(DiffInfo diff, DiffInfo[] renameDiffArray) {
|
|||
}
|
||||
|
||||
/**
|
||||
* For a given sourcePath, get its real path if it or its parent was renamed.
|
||||
*
|
||||
* For example, if we renamed dirX to dirY, and created dirY/fileX,
|
||||
* the initial snapshot diff would be a CREATE snapshot diff that looks like
|
||||
* + dirX/fileX
|
||||
* The rename snapshot diff looks like
|
||||
* R dirX dirY
|
||||
*
|
||||
* We convert the soucePath dirX/fileX to dirY/fileX here.
|
||||
*
|
||||
* For a given source path, get its target path based on the rename item.
|
||||
* @return target path
|
||||
*/
|
||||
private Path translateRenamedPath(Path sourcePath,
|
||||
DiffInfo renameItem) {
|
||||
if (sourcePath.equals(renameItem.getSource())) {
|
||||
return renameItem.getTarget();
|
||||
private Path getTargetPath(Path sourcePath, DiffInfo renameItem) {
|
||||
if (sourcePath.equals(renameItem.source)) {
|
||||
return renameItem.target;
|
||||
}
|
||||
StringBuffer sb = new StringBuffer(sourcePath.toString());
|
||||
String remain =
|
||||
sb.substring(renameItem.getSource().toString().length() + 1);
|
||||
return new Path(renameItem.getTarget(), remain);
|
||||
String remain = sb.substring(renameItem.source.toString().length() + 1);
|
||||
return new Path(renameItem.target, remain);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -507,36 +406,27 @@ private Path translateRenamedPath(Path sourcePath,
|
|||
*
|
||||
* If the parent or self of a source path is renamed, we need to change its
|
||||
* target path according the correspondent rename item.
|
||||
*
|
||||
* For RDiff usage, the diff.getSource() is what we will use as its target
|
||||
* path.
|
||||
*
|
||||
* @return a diff list
|
||||
*/
|
||||
public ArrayList<DiffInfo> prepareDiffListForCopyListing() {
|
||||
public ArrayList<DiffInfo> prepareDiffList() {
|
||||
DiffInfo[] modifyAndCreateDiffs = getCreateAndModifyDiffs();
|
||||
ArrayList<DiffInfo> finalListWithTarget = new ArrayList<>();
|
||||
if (isRdiff()) {
|
||||
for (DiffInfo diff : modifyAndCreateDiffs) {
|
||||
diff.setTarget(diff.getSource());
|
||||
finalListWithTarget.add(diff);
|
||||
}
|
||||
} else {
|
||||
|
||||
List<DiffInfo> renameDiffsList =
|
||||
diffMap.get(SnapshotDiffReport.DiffType.RENAME);
|
||||
DiffInfo[] renameDiffArray =
|
||||
renameDiffsList.toArray(new DiffInfo[renameDiffsList.size()]);
|
||||
Arrays.sort(renameDiffArray, DiffInfo.sourceComparator);
|
||||
|
||||
ArrayList<DiffInfo> finalListWithTarget = new ArrayList<>();
|
||||
for (DiffInfo diff : modifyAndCreateDiffs) {
|
||||
DiffInfo renameItem = getRenameItem(diff, renameDiffArray);
|
||||
if (renameItem == null) {
|
||||
diff.setTarget(diff.getSource());
|
||||
diff.target = diff.source;
|
||||
} else {
|
||||
diff.setTarget(translateRenamedPath(diff.getSource(), renameItem));
|
||||
diff.target = getTargetPath(diff.source, renameItem);
|
||||
}
|
||||
finalListWithTarget.add(diff);
|
||||
}
|
||||
}
|
||||
return finalListWithTarget;
|
||||
}
|
||||
|
||||
|
|
@ -569,9 +459,9 @@ public HashSet<String> getTraverseExcludeList(Path newDir, Path prefix) {
|
|||
boolean foundChild = false;
|
||||
HashSet<String> excludeList = new HashSet<>();
|
||||
for (DiffInfo diff : renameDiffs) {
|
||||
if (isParentOf(newDir, diff.getTarget())) {
|
||||
if (isParentOf(newDir, diff.target)) {
|
||||
foundChild = true;
|
||||
excludeList.add(new Path(prefix, diff.getTarget()).toUri().getPath());
|
||||
excludeList.add(new Path(prefix, diff.target).toUri().getPath());
|
||||
} else if (foundChild) {
|
||||
// The renameDiffs was sorted, the matching section should be
|
||||
// contiguous.
|
||||
|
|
|
|||
|
|
@ -28,7 +28,6 @@
|
|||
import org.apache.commons.cli.HelpFormatter;
|
||||
import org.apache.commons.cli.Options;
|
||||
import org.apache.commons.cli.ParseException;
|
||||
import org.apache.commons.lang.StringUtils;
|
||||
import org.apache.commons.logging.Log;
|
||||
import org.apache.commons.logging.LogFactory;
|
||||
import org.apache.hadoop.fs.Path;
|
||||
|
|
@ -67,13 +66,6 @@ protected String[] flatten(Options options, String[] arguments, boolean stopAtNo
|
|||
}
|
||||
}
|
||||
|
||||
private static void checkSnapshotsArgs(final String[] snapshots) {
|
||||
Preconditions.checkArgument(snapshots != null && snapshots.length == 2
|
||||
&& !StringUtils.isBlank(snapshots[0])
|
||||
&& !StringUtils.isBlank(snapshots[1]),
|
||||
"Must provide both the starting and ending snapshot names");
|
||||
}
|
||||
|
||||
/**
|
||||
* The parse method parses the command-line options, and creates
|
||||
* a corresponding Options object.
|
||||
|
|
@ -82,8 +74,7 @@ private static void checkSnapshotsArgs(final String[] snapshots) {
|
|||
* @return The Options object, corresponding to the specified command-line.
|
||||
* @throws IllegalArgumentException Thrown if the parse fails.
|
||||
*/
|
||||
public static DistCpOptions parse(String[] args)
|
||||
throws IllegalArgumentException {
|
||||
public static DistCpOptions parse(String args[]) throws IllegalArgumentException {
|
||||
|
||||
CommandLineParser parser = new CustomParser();
|
||||
|
||||
|
|
@ -151,16 +142,10 @@ public static DistCpOptions parse(String[] args)
|
|||
parsePreserveStatus(command, option);
|
||||
|
||||
if (command.hasOption(DistCpOptionSwitch.DIFF.getSwitch())) {
|
||||
String[] snapshots = getVals(command,
|
||||
DistCpOptionSwitch.DIFF.getSwitch());
|
||||
checkSnapshotsArgs(snapshots);
|
||||
option.setUseDiff(snapshots[0], snapshots[1]);
|
||||
}
|
||||
if (command.hasOption(DistCpOptionSwitch.RDIFF.getSwitch())) {
|
||||
String[] snapshots = getVals(command,
|
||||
DistCpOptionSwitch.RDIFF.getSwitch());
|
||||
checkSnapshotsArgs(snapshots);
|
||||
option.setUseRdiff(snapshots[0], snapshots[1]);
|
||||
String[] snapshots = getVals(command, DistCpOptionSwitch.DIFF.getSwitch());
|
||||
Preconditions.checkArgument(snapshots != null && snapshots.length == 2,
|
||||
"Must provide both the starting and ending snapshot names");
|
||||
option.setUseDiff(true, snapshots[0], snapshots[1]);
|
||||
}
|
||||
|
||||
parseFileLimit(command);
|
||||
|
|
|
|||
|
|
@ -194,7 +194,7 @@ protected void validatePaths(DistCpOptions options)
|
|||
@Override
|
||||
protected void doBuildListing(Path pathToListingFile,
|
||||
DistCpOptions options) throws IOException {
|
||||
if(options.shouldUseSnapshotDiff()) {
|
||||
if(options.shouldUseDiff()) {
|
||||
doBuildListingWithSnapshotDiff(getWriter(pathToListingFile), options);
|
||||
}else {
|
||||
doBuildListing(getWriter(pathToListingFile), options);
|
||||
|
|
@ -256,7 +256,7 @@ private void addToFileListing(SequenceFile.Writer fileListWriter,
|
|||
protected void doBuildListingWithSnapshotDiff(
|
||||
SequenceFile.Writer fileListWriter, DistCpOptions options)
|
||||
throws IOException {
|
||||
ArrayList<DiffInfo> diffList = distCpSync.prepareDiffListForCopyListing();
|
||||
ArrayList<DiffInfo> diffList = distCpSync.prepareDiffList();
|
||||
Path sourceRoot = options.getSourcePaths().get(0);
|
||||
FileSystem sourceFS = sourceRoot.getFileSystem(getConf());
|
||||
|
||||
|
|
@ -264,16 +264,13 @@ protected void doBuildListingWithSnapshotDiff(
|
|||
List<FileStatusInfo> fileStatuses = Lists.newArrayList();
|
||||
for (DiffInfo diff : diffList) {
|
||||
// add snapshot paths prefix
|
||||
diff.setTarget(
|
||||
new Path(options.getSourcePaths().get(0), diff.getTarget()));
|
||||
diff.target = new Path(options.getSourcePaths().get(0), diff.target);
|
||||
if (diff.getType() == SnapshotDiffReport.DiffType.MODIFY) {
|
||||
addToFileListing(fileListWriter,
|
||||
sourceRoot, diff.getTarget(), options);
|
||||
addToFileListing(fileListWriter, sourceRoot, diff.target, options);
|
||||
} else if (diff.getType() == SnapshotDiffReport.DiffType.CREATE) {
|
||||
addToFileListing(fileListWriter,
|
||||
sourceRoot, diff.getTarget(), options);
|
||||
addToFileListing(fileListWriter, sourceRoot, diff.target, options);
|
||||
|
||||
FileStatus sourceStatus = sourceFS.getFileStatus(diff.getTarget());
|
||||
FileStatus sourceStatus = sourceFS.getFileStatus(diff.target);
|
||||
if (sourceStatus.isDirectory()) {
|
||||
if (LOG.isDebugEnabled()) {
|
||||
LOG.debug("Adding source dir for traverse: " +
|
||||
|
|
@ -281,7 +278,7 @@ protected void doBuildListingWithSnapshotDiff(
|
|||
}
|
||||
|
||||
HashSet<String> excludeList =
|
||||
distCpSync.getTraverseExcludeList(diff.getSource(),
|
||||
distCpSync.getTraverseExcludeList(diff.source,
|
||||
options.getSourcePaths().get(0));
|
||||
|
||||
ArrayList<FileStatus> sourceDirs = new ArrayList<>();
|
||||
|
|
|
|||
|
|
@ -64,7 +64,7 @@ public void setUp() throws Exception {
|
|||
|
||||
options = new DistCpOptions(Arrays.asList(source), target);
|
||||
options.setSyncFolder(true);
|
||||
options.setUseDiff("s1", "s2");
|
||||
options.setUseDiff(true, "s1", "s2");
|
||||
options.appendToConf(conf);
|
||||
|
||||
conf.set(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH, target.toString());
|
||||
|
|
@ -312,7 +312,7 @@ private void verifyCopy(FileStatus s, FileStatus t, boolean compareName)
|
|||
*/
|
||||
@Test
|
||||
public void testSyncWithCurrent() throws Exception {
|
||||
options.setUseDiff("s1", ".");
|
||||
options.setUseDiff(true, "s1", ".");
|
||||
initData(source);
|
||||
initData(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
|
|
|
|||
|
|
@ -1,868 +0,0 @@
|
|||
/**
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package org.apache.hadoop.tools;
|
||||
|
||||
import org.apache.hadoop.conf.Configuration;
|
||||
import org.apache.hadoop.fs.FileStatus;
|
||||
import org.apache.hadoop.fs.FsShell;
|
||||
import org.apache.hadoop.fs.Path;
|
||||
import org.apache.hadoop.hdfs.DFSTestUtil;
|
||||
import org.apache.hadoop.hdfs.DistributedFileSystem;
|
||||
import org.apache.hadoop.hdfs.HdfsConfiguration;
|
||||
import org.apache.hadoop.hdfs.MiniDFSCluster;
|
||||
import org.apache.hadoop.hdfs.protocol.HdfsConstants;
|
||||
import org.apache.hadoop.hdfs.protocol.SnapshotDiffReport;
|
||||
import org.apache.hadoop.io.IOUtils;
|
||||
import org.apache.hadoop.io.SequenceFile;
|
||||
import org.apache.hadoop.io.Text;
|
||||
import org.apache.hadoop.mapreduce.Mapper;
|
||||
import org.apache.hadoop.security.Credentials;
|
||||
import org.apache.hadoop.tools.mapred.CopyMapper;
|
||||
import org.junit.After;
|
||||
import org.junit.Assert;
|
||||
import org.junit.Before;
|
||||
import org.junit.Test;
|
||||
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.PrintStream;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
import java.util.Collections;
|
||||
import java.util.HashMap;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.StringTokenizer;
|
||||
|
||||
/**
|
||||
* Base class to test "-rdiff s2 s1".
|
||||
* Shared by "-rdiff s2 s1 src tgt" and "-rdiff s2 s1 tgt tgt"
|
||||
*/
|
||||
public abstract class TestDistCpSyncReverseBase {
|
||||
private MiniDFSCluster cluster;
|
||||
private final Configuration conf = new HdfsConfiguration();
|
||||
private DistributedFileSystem dfs;
|
||||
private DistCpOptions options;
|
||||
private Path source;
|
||||
private boolean isSrcNotSameAsTgt = true;
|
||||
private final Path target = new Path("/target");
|
||||
private final long blockSize = 1024;
|
||||
private final short dataNum = 1;
|
||||
|
||||
abstract void initSourcePath();
|
||||
|
||||
private static List<String> lsr(final String prefix,
|
||||
final FsShell shell, Path rootDir) throws Exception {
|
||||
return lsr(prefix, shell, rootDir.toString(), null);
|
||||
}
|
||||
|
||||
private List<String> lsrSource(final String prefix,
|
||||
final FsShell shell, Path rootDir) throws Exception {
|
||||
final Path spath = isSrcNotSameAsTgt? rootDir :
|
||||
new Path(rootDir.toString(),
|
||||
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s1");
|
||||
return lsr(prefix, shell, spath.toString(), null);
|
||||
}
|
||||
|
||||
private static List<String> lsr(final String prefix,
|
||||
final FsShell shell, String rootDir, String glob) throws Exception {
|
||||
final String dir = glob == null ? rootDir : glob;
|
||||
System.out.println(prefix + " lsr root=" + rootDir);
|
||||
final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
|
||||
final PrintStream out = new PrintStream(bytes);
|
||||
final PrintStream oldOut = System.out;
|
||||
final PrintStream oldErr = System.err;
|
||||
System.setOut(out);
|
||||
System.setErr(out);
|
||||
final String results;
|
||||
try {
|
||||
Assert.assertEquals(0, shell.run(new String[] {"-lsr", dir }));
|
||||
results = bytes.toString();
|
||||
} finally {
|
||||
IOUtils.closeStream(out);
|
||||
System.setOut(oldOut);
|
||||
System.setErr(oldErr);
|
||||
}
|
||||
System.out.println("lsr results:\n" + results);
|
||||
String dirname = rootDir;
|
||||
if (rootDir.lastIndexOf(Path.SEPARATOR) != -1) {
|
||||
dirname = rootDir.substring(rootDir.lastIndexOf(Path.SEPARATOR));
|
||||
}
|
||||
|
||||
final List<String> paths = new ArrayList<String>();
|
||||
for (StringTokenizer t = new StringTokenizer(results, "\n"); t
|
||||
.hasMoreTokens();) {
|
||||
final String s = t.nextToken();
|
||||
final int i = s.indexOf(dirname);
|
||||
if (i >= 0) {
|
||||
paths.add(s.substring(i + dirname.length()));
|
||||
}
|
||||
}
|
||||
Collections.sort(paths);
|
||||
System.out
|
||||
.println("lsr paths = " + paths.toString().replace(", ", ",\n "));
|
||||
return paths;
|
||||
}
|
||||
|
||||
public void setSource(final Path src) {
|
||||
this.source = src;
|
||||
}
|
||||
|
||||
public void setSrcNotSameAsTgt(final boolean srcNotSameAsTgt) {
|
||||
isSrcNotSameAsTgt = srcNotSameAsTgt;
|
||||
}
|
||||
|
||||
@Before
|
||||
public void setUp() throws Exception {
|
||||
initSourcePath();
|
||||
|
||||
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(dataNum).build();
|
||||
cluster.waitActive();
|
||||
|
||||
dfs = cluster.getFileSystem();
|
||||
if (isSrcNotSameAsTgt) {
|
||||
dfs.mkdirs(source);
|
||||
}
|
||||
dfs.mkdirs(target);
|
||||
|
||||
options = new DistCpOptions(Arrays.asList(source), target);
|
||||
options.setSyncFolder(true);
|
||||
options.setUseRdiff("s2", "s1");
|
||||
options.appendToConf(conf);
|
||||
|
||||
conf.set(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH, target.toString());
|
||||
conf.set(DistCpConstants.CONF_LABEL_TARGET_FINAL_PATH, target.toString());
|
||||
}
|
||||
|
||||
@After
|
||||
public void tearDown() throws Exception {
|
||||
IOUtils.cleanup(null, dfs);
|
||||
if (cluster != null) {
|
||||
cluster.shutdown();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Test the sync returns false in the following scenarios:
|
||||
* 1. the source/target dir are not snapshottable dir
|
||||
* 2. the source/target does not have the given snapshots
|
||||
* 3. changes have been made in target
|
||||
*/
|
||||
@Test
|
||||
public void testFallback() throws Exception {
|
||||
// the source/target dir are not snapshottable dir
|
||||
Assert.assertFalse(sync());
|
||||
// make sure the source path has been updated to the snapshot path
|
||||
final Path spath = new Path(source,
|
||||
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s1");
|
||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||
|
||||
// reset source path in options
|
||||
options.setSourcePaths(Arrays.asList(source));
|
||||
// the source/target does not have the given snapshots
|
||||
dfs.allowSnapshot(source);
|
||||
dfs.allowSnapshot(target);
|
||||
Assert.assertFalse(sync());
|
||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||
|
||||
// reset source path in options
|
||||
options.setSourcePaths(Arrays.asList(source));
|
||||
this.enableAndCreateFirstSnapshot();
|
||||
dfs.createSnapshot(target, "s2");
|
||||
Assert.assertTrue(sync());
|
||||
|
||||
// reset source paths in options
|
||||
options.setSourcePaths(Arrays.asList(source));
|
||||
// changes have been made in target
|
||||
final Path subTarget = new Path(target, "sub");
|
||||
dfs.mkdirs(subTarget);
|
||||
Assert.assertFalse(sync());
|
||||
// make sure the source path has been updated to the snapshot path
|
||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||
|
||||
// reset source paths in options
|
||||
options.setSourcePaths(Arrays.asList(source));
|
||||
dfs.delete(subTarget, true);
|
||||
Assert.assertTrue(sync());
|
||||
}
|
||||
|
||||
private void syncAndVerify() throws Exception {
|
||||
|
||||
final FsShell shell = new FsShell(conf);
|
||||
lsrSource("Before sync source: ", shell, source);
|
||||
lsr("Before sync target: ", shell, target);
|
||||
|
||||
Assert.assertTrue(sync());
|
||||
|
||||
lsrSource("After sync source: ", shell, source);
|
||||
lsr("After sync target: ", shell, target);
|
||||
|
||||
verifyCopy(dfs.getFileStatus(source), dfs.getFileStatus(target), false);
|
||||
}
|
||||
|
||||
private boolean sync() throws Exception {
|
||||
DistCpSync distCpSync = new DistCpSync(options, conf);
|
||||
return distCpSync.sync();
|
||||
}
|
||||
|
||||
private void enableAndCreateFirstSnapshot() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
dfs.allowSnapshot(source);
|
||||
dfs.createSnapshot(source, "s1");
|
||||
}
|
||||
dfs.allowSnapshot(target);
|
||||
dfs.createSnapshot(target, "s1");
|
||||
}
|
||||
|
||||
private void createSecondSnapshotAtTarget() throws Exception {
|
||||
dfs.createSnapshot(target, "s2");
|
||||
}
|
||||
|
||||
private void createMiddleSnapshotAtTarget() throws Exception {
|
||||
dfs.createSnapshot(target, "s1.5");
|
||||
}
|
||||
|
||||
/**
|
||||
* create some files and directories under the given directory.
|
||||
* the final subtree looks like this:
|
||||
* dir/
|
||||
* foo/ bar/
|
||||
* d1/ f1 d2/ f2
|
||||
* f3 f4
|
||||
*/
|
||||
private void initData(Path dir) throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path d1 = new Path(foo, "d1");
|
||||
final Path f1 = new Path(foo, "f1");
|
||||
final Path d2 = new Path(bar, "d2");
|
||||
final Path f2 = new Path(bar, "f2");
|
||||
final Path f3 = new Path(d1, "f3");
|
||||
final Path f4 = new Path(d2, "f4");
|
||||
|
||||
DFSTestUtil.createFile(dfs, f1, blockSize, dataNum, 0);
|
||||
DFSTestUtil.createFile(dfs, f2, blockSize, dataNum, 0);
|
||||
DFSTestUtil.createFile(dfs, f3, blockSize, dataNum, 0);
|
||||
DFSTestUtil.createFile(dfs, f4, blockSize, dataNum, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* make some changes under the given directory (created in the above way).
|
||||
* 1. rename dir/foo/d1 to dir/bar/d1
|
||||
* 2. delete dir/bar/d1/f3
|
||||
* 3. rename dir/foo to /dir/bar/d1/foo
|
||||
* 4. delete dir/bar/d1/foo/f1
|
||||
* 5. create file dir/bar/d1/foo/f1 whose size is 2*BLOCK_SIZE
|
||||
* 6. append one BLOCK to file dir/bar/f2
|
||||
* 7. rename dir/bar to dir/foo
|
||||
*
|
||||
* Thus after all these ops the subtree looks like this:
|
||||
* dir/
|
||||
* foo/
|
||||
* d1/ f2(A) d2/
|
||||
* foo/ f4
|
||||
* f1(new)
|
||||
*/
|
||||
private int changeData(Path dir) throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path d1 = new Path(foo, "d1");
|
||||
final Path f2 = new Path(bar, "f2");
|
||||
|
||||
final Path bar_d1 = new Path(bar, "d1");
|
||||
int numDeletedModified = 0;
|
||||
dfs.rename(d1, bar_d1);
|
||||
numDeletedModified += 1; // modify ./foo
|
||||
numDeletedModified += 1; // modify ./bar
|
||||
final Path f3 = new Path(bar_d1, "f3");
|
||||
dfs.delete(f3, true);
|
||||
numDeletedModified += 1; // delete f3
|
||||
final Path newfoo = new Path(bar_d1, "foo");
|
||||
dfs.rename(foo, newfoo);
|
||||
numDeletedModified += 1; // modify ./foo/d1
|
||||
final Path f1 = new Path(newfoo, "f1");
|
||||
dfs.delete(f1, true);
|
||||
numDeletedModified += 1; // delete ./foo/f1
|
||||
DFSTestUtil.createFile(dfs, f1, 2 * blockSize, dataNum, 0);
|
||||
DFSTestUtil.appendFile(dfs, f2, (int) blockSize);
|
||||
numDeletedModified += 1; // modify ./bar/f2
|
||||
dfs.rename(bar, new Path(dir, "foo"));
|
||||
return numDeletedModified;
|
||||
}
|
||||
|
||||
/**
|
||||
* Test the basic functionality.
|
||||
*/
|
||||
@Test
|
||||
public void testSync() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData(source);
|
||||
}
|
||||
initData(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
|
||||
final FsShell shell = new FsShell(conf);
|
||||
|
||||
lsrSource("Before source: ", shell, source);
|
||||
lsr("Before target: ", shell, target);
|
||||
|
||||
// make changes under target
|
||||
int numDeletedModified = changeData(target);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
|
||||
System.out.println(report);
|
||||
|
||||
DistCpSync distCpSync = new DistCpSync(options, conf);
|
||||
|
||||
lsr("Before sync target: ", shell, target);
|
||||
|
||||
// do the sync
|
||||
Assert.assertTrue(distCpSync.sync());
|
||||
|
||||
lsr("After sync target: ", shell, target);
|
||||
|
||||
// make sure the source path has been updated to the snapshot path
|
||||
final Path spath = new Path(source,
|
||||
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s1");
|
||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||
|
||||
// build copy listing
|
||||
final Path listingPath = new Path("/tmp/META/fileList.seq");
|
||||
CopyListing listing = new SimpleCopyListing(conf, new Credentials(),
|
||||
distCpSync);
|
||||
listing.buildListing(listingPath, options);
|
||||
|
||||
Map<Text, CopyListingFileStatus> copyListing = getListing(listingPath);
|
||||
CopyMapper copyMapper = new CopyMapper();
|
||||
StubContext stubContext = new StubContext(conf, null, 0);
|
||||
Mapper<Text, CopyListingFileStatus, Text, Text>.Context context =
|
||||
stubContext.getContext();
|
||||
// Enable append
|
||||
context.getConfiguration().setBoolean(
|
||||
DistCpOptionSwitch.APPEND.getConfigLabel(), true);
|
||||
copyMapper.setup(context);
|
||||
for (Map.Entry<Text, CopyListingFileStatus> entry :
|
||||
copyListing.entrySet()) {
|
||||
copyMapper.map(entry.getKey(), entry.getValue(), context);
|
||||
}
|
||||
|
||||
lsrSource("After mapper source: ", shell, source);
|
||||
lsr("After mapper target: ", shell, target);
|
||||
|
||||
// verify that we only list modified and created files/directories
|
||||
Assert.assertEquals(numDeletedModified, copyListing.size());
|
||||
|
||||
// verify that we only copied new appended data of f2 and the new file f1
|
||||
Assert.assertEquals(blockSize * 3, stubContext.getReporter()
|
||||
.getCounter(CopyMapper.Counter.BYTESCOPIED).getValue());
|
||||
|
||||
// verify the source and target now has the same structure
|
||||
verifyCopy(dfs.getFileStatus(spath), dfs.getFileStatus(target), false);
|
||||
}
|
||||
|
||||
private Map<Text, CopyListingFileStatus> getListing(Path listingPath)
|
||||
throws Exception {
|
||||
SequenceFile.Reader reader = null;
|
||||
Map<Text, CopyListingFileStatus> values = new HashMap<>();
|
||||
try {
|
||||
reader = new SequenceFile.Reader(conf,
|
||||
SequenceFile.Reader.file(listingPath));
|
||||
Text key = new Text();
|
||||
CopyListingFileStatus value = new CopyListingFileStatus();
|
||||
while (reader.next(key, value)) {
|
||||
values.put(key, value);
|
||||
key = new Text();
|
||||
value = new CopyListingFileStatus();
|
||||
}
|
||||
} finally {
|
||||
if (reader != null) {
|
||||
reader.close();
|
||||
}
|
||||
}
|
||||
return values;
|
||||
}
|
||||
|
||||
private void verifyCopy(FileStatus s, FileStatus t, boolean compareName)
|
||||
throws Exception {
|
||||
Assert.assertEquals(s.isDirectory(), t.isDirectory());
|
||||
if (compareName) {
|
||||
Assert.assertEquals(s.getPath().getName(), t.getPath().getName());
|
||||
}
|
||||
if (!s.isDirectory()) {
|
||||
// verify the file content is the same
|
||||
byte[] sbytes = DFSTestUtil.readFileBuffer(dfs, s.getPath());
|
||||
byte[] tbytes = DFSTestUtil.readFileBuffer(dfs, t.getPath());
|
||||
Assert.assertArrayEquals(sbytes, tbytes);
|
||||
} else {
|
||||
FileStatus[] slist = dfs.listStatus(s.getPath());
|
||||
FileStatus[] tlist = dfs.listStatus(t.getPath());
|
||||
Assert.assertEquals(slist.length, tlist.length);
|
||||
for (int i = 0; i < slist.length; i++) {
|
||||
verifyCopy(slist[i], tlist[i], true);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Test the case that "current" is snapshotted as "s2".
|
||||
* @throws Exception
|
||||
*/
|
||||
@Test
|
||||
public void testSyncWithCurrent() throws Exception {
|
||||
options.setUseRdiff(".", "s1");
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData(source);
|
||||
}
|
||||
initData(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
|
||||
// make changes under target
|
||||
changeData(target);
|
||||
|
||||
// do the sync
|
||||
Assert.assertTrue(sync());
|
||||
final Path spath = new Path(source,
|
||||
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s1");
|
||||
// make sure the source path is still unchanged
|
||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||
}
|
||||
|
||||
private void initData2(Path dir) throws Exception {
|
||||
final Path test = new Path(dir, "test");
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path f1 = new Path(test, "f1");
|
||||
final Path f2 = new Path(foo, "f2");
|
||||
final Path f3 = new Path(bar, "f3");
|
||||
|
||||
DFSTestUtil.createFile(dfs, f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, f2, blockSize, dataNum, 1L);
|
||||
DFSTestUtil.createFile(dfs, f3, blockSize, dataNum, 2L);
|
||||
}
|
||||
|
||||
private void changeData2(Path dir) throws Exception {
|
||||
final Path tmpFoo = new Path(dir, "tmpFoo");
|
||||
final Path test = new Path(dir, "test");
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
|
||||
dfs.rename(test, tmpFoo);
|
||||
dfs.rename(foo, test);
|
||||
dfs.rename(bar, foo);
|
||||
dfs.rename(tmpFoo, bar);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testSync2() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData2(source);
|
||||
}
|
||||
initData2(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
|
||||
// make changes under target
|
||||
changeData2(target);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
|
||||
System.out.println(report);
|
||||
|
||||
syncAndVerify();
|
||||
}
|
||||
|
||||
private void initData3(Path dir) throws Exception {
|
||||
final Path test = new Path(dir, "test");
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path f1 = new Path(test, "file");
|
||||
final Path f2 = new Path(foo, "file");
|
||||
final Path f3 = new Path(bar, "file");
|
||||
|
||||
DFSTestUtil.createFile(dfs, f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, f2, blockSize * 2, dataNum, 1L);
|
||||
DFSTestUtil.createFile(dfs, f3, blockSize * 3, dataNum, 2L);
|
||||
}
|
||||
|
||||
private void changeData3(Path dir) throws Exception {
|
||||
final Path test = new Path(dir, "test");
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path f1 = new Path(test, "file");
|
||||
final Path f2 = new Path(foo, "file");
|
||||
final Path f3 = new Path(bar, "file");
|
||||
final Path newf1 = new Path(test, "newfile");
|
||||
final Path newf2 = new Path(foo, "newfile");
|
||||
final Path newf3 = new Path(bar, "newfile");
|
||||
|
||||
dfs.rename(f1, newf1);
|
||||
dfs.rename(f2, newf2);
|
||||
dfs.rename(f3, newf3);
|
||||
}
|
||||
|
||||
/**
|
||||
* Test a case where there are multiple source files with the same name.
|
||||
*/
|
||||
@Test
|
||||
public void testSync3() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData3(source);
|
||||
}
|
||||
initData3(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
|
||||
// make changes under target
|
||||
changeData3(target);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
|
||||
System.out.println(report);
|
||||
|
||||
syncAndVerify();
|
||||
}
|
||||
|
||||
private void initData4(Path dir) throws Exception {
|
||||
final Path d1 = new Path(dir, "d1");
|
||||
final Path d2 = new Path(d1, "d2");
|
||||
final Path f1 = new Path(d2, "f1");
|
||||
|
||||
DFSTestUtil.createFile(dfs, f1, blockSize, dataNum, 0L);
|
||||
}
|
||||
|
||||
private int changeData4(Path dir) throws Exception {
|
||||
final Path d1 = new Path(dir, "d1");
|
||||
final Path d11 = new Path(dir, "d11");
|
||||
final Path d2 = new Path(d1, "d2");
|
||||
final Path d21 = new Path(d1, "d21");
|
||||
final Path f1 = new Path(d2, "f1");
|
||||
|
||||
int numDeletedAndModified = 0;
|
||||
dfs.delete(f1, false);
|
||||
numDeletedAndModified += 1;
|
||||
dfs.rename(d2, d21);
|
||||
numDeletedAndModified += 1;
|
||||
dfs.rename(d1, d11);
|
||||
numDeletedAndModified += 1;
|
||||
return numDeletedAndModified;
|
||||
}
|
||||
|
||||
/**
|
||||
* Test a case where multiple level dirs are renamed.
|
||||
*/
|
||||
@Test
|
||||
public void testSync4() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData4(source);
|
||||
}
|
||||
initData4(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
|
||||
final FsShell shell = new FsShell(conf);
|
||||
lsr("Before change target: ", shell, target);
|
||||
|
||||
// make changes under target
|
||||
int numDeletedAndModified = changeData4(target);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
|
||||
System.out.println(report);
|
||||
|
||||
testAndVerify(numDeletedAndModified);
|
||||
}
|
||||
|
||||
private void initData5(Path dir) throws Exception {
|
||||
final Path d1 = new Path(dir, "d1");
|
||||
final Path d2 = new Path(dir, "d2");
|
||||
final Path f1 = new Path(d1, "f1");
|
||||
final Path f2 = new Path(d2, "f2");
|
||||
|
||||
DFSTestUtil.createFile(dfs, f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, f2, blockSize, dataNum, 0L);
|
||||
}
|
||||
|
||||
private int changeData5(Path dir) throws Exception {
|
||||
final Path d1 = new Path(dir, "d1");
|
||||
final Path d2 = new Path(dir, "d2");
|
||||
final Path f1 = new Path(d1, "f1");
|
||||
final Path tmp = new Path(dir, "tmp");
|
||||
|
||||
int numDeletedAndModified = 0;
|
||||
dfs.delete(f1, false);
|
||||
numDeletedAndModified += 1;
|
||||
dfs.rename(d1, tmp);
|
||||
numDeletedAndModified += 1;
|
||||
dfs.rename(d2, d1);
|
||||
numDeletedAndModified += 1;
|
||||
final Path f2 = new Path(d1, "f2");
|
||||
dfs.delete(f2, false);
|
||||
numDeletedAndModified += 1;
|
||||
return numDeletedAndModified;
|
||||
}
|
||||
|
||||
/**
|
||||
* Test a case with different delete and rename sequences.
|
||||
*/
|
||||
@Test
|
||||
public void testSync5() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData5(source);
|
||||
}
|
||||
initData5(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
|
||||
// make changes under target
|
||||
int numDeletedAndModified = changeData5(target);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
|
||||
System.out.println(report);
|
||||
|
||||
testAndVerify(numDeletedAndModified);
|
||||
}
|
||||
|
||||
private void testAndVerify(int numDeletedAndModified)
|
||||
throws Exception{
|
||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
|
||||
System.out.println(report);
|
||||
|
||||
final FsShell shell = new FsShell(conf);
|
||||
|
||||
lsrSource("Before sync source: ", shell, source);
|
||||
lsr("Before sync target: ", shell, target);
|
||||
|
||||
DistCpSync distCpSync = new DistCpSync(options, conf);
|
||||
// do the sync
|
||||
distCpSync.sync();
|
||||
|
||||
lsr("After sync target: ", shell, target);
|
||||
|
||||
// make sure the source path has been updated to the snapshot path
|
||||
final Path spath = new Path(source,
|
||||
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s1");
|
||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||
|
||||
// build copy listing
|
||||
final Path listingPath = new Path("/tmp/META/fileList.seq");
|
||||
CopyListing listing = new SimpleCopyListing(conf, new Credentials(), distCpSync);
|
||||
listing.buildListing(listingPath, options);
|
||||
|
||||
Map<Text, CopyListingFileStatus> copyListing = getListing(listingPath);
|
||||
CopyMapper copyMapper = new CopyMapper();
|
||||
StubContext stubContext = new StubContext(conf, null, 0);
|
||||
Mapper<Text, CopyListingFileStatus, Text, Text>.Context context =
|
||||
stubContext.getContext();
|
||||
// Enable append
|
||||
context.getConfiguration().setBoolean(
|
||||
DistCpOptionSwitch.APPEND.getConfigLabel(), true);
|
||||
copyMapper.setup(context);
|
||||
for (Map.Entry<Text, CopyListingFileStatus> entry :
|
||||
copyListing.entrySet()) {
|
||||
copyMapper.map(entry.getKey(), entry.getValue(), context);
|
||||
}
|
||||
|
||||
// verify that we only list modified and created files/directories
|
||||
Assert.assertEquals(numDeletedAndModified, copyListing.size());
|
||||
|
||||
lsr("After Copy target: ", shell, target);
|
||||
|
||||
// verify the source and target now has the same structure
|
||||
verifyCopy(dfs.getFileStatus(spath), dfs.getFileStatus(target), false);
|
||||
}
|
||||
|
||||
private void initData6(Path dir) throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path foo_f1 = new Path(foo, "f1");
|
||||
final Path bar_f1 = new Path(bar, "f1");
|
||||
|
||||
DFSTestUtil.createFile(dfs, foo_f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, bar_f1, blockSize, dataNum, 0L);
|
||||
}
|
||||
|
||||
private int changeData6(Path dir) throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path foo2 = new Path(dir, "foo2");
|
||||
final Path foo_f1 = new Path(foo, "f1");
|
||||
|
||||
int numDeletedModified = 0;
|
||||
dfs.rename(foo, foo2);
|
||||
dfs.rename(bar, foo);
|
||||
dfs.rename(foo2, bar);
|
||||
DFSTestUtil.appendFile(dfs, foo_f1, (int) blockSize);
|
||||
numDeletedModified += 1; // modify ./bar/f1
|
||||
return numDeletedModified;
|
||||
}
|
||||
|
||||
/**
|
||||
* Test a case where there is a cycle in renaming dirs.
|
||||
*/
|
||||
@Test
|
||||
public void testSync6() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData6(source);
|
||||
}
|
||||
initData6(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
int numDeletedModified = changeData6(target);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
testAndVerify(numDeletedModified);
|
||||
}
|
||||
|
||||
private void initData7(Path dir) throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path foo_f1 = new Path(foo, "f1");
|
||||
final Path bar_f1 = new Path(bar, "f1");
|
||||
|
||||
DFSTestUtil.createFile(dfs, foo_f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, bar_f1, blockSize, dataNum, 0L);
|
||||
}
|
||||
|
||||
private int changeData7(Path dir) throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path foo2 = new Path(dir, "foo2");
|
||||
final Path foo_f1 = new Path(foo, "f1");
|
||||
final Path foo2_f2 = new Path(foo2, "f2");
|
||||
final Path foo_d1 = new Path(foo, "d1");
|
||||
final Path foo_d1_f3 = new Path(foo_d1, "f3");
|
||||
|
||||
int numDeletedAndModified = 0;
|
||||
dfs.rename(foo, foo2);
|
||||
DFSTestUtil.createFile(dfs, foo_f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.appendFile(dfs, foo_f1, (int) blockSize);
|
||||
dfs.rename(foo_f1, foo2_f2);
|
||||
/*
|
||||
* Difference between snapshot s1 and current directory under directory
|
||||
/target:
|
||||
M .
|
||||
+ ./foo
|
||||
R ./foo -> ./foo2
|
||||
M ./foo
|
||||
+ ./foo/f2
|
||||
*/
|
||||
numDeletedAndModified += 1; // "M ./foo"
|
||||
DFSTestUtil.createFile(dfs, foo_d1_f3, blockSize, dataNum, 0L);
|
||||
return numDeletedAndModified;
|
||||
}
|
||||
|
||||
/**
|
||||
* Test a case where rename a dir, then create a new dir with the same name
|
||||
* and sub dir.
|
||||
*/
|
||||
@Test
|
||||
public void testSync7() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData7(source);
|
||||
}
|
||||
initData7(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
int numDeletedAndModified = changeData7(target);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
testAndVerify(numDeletedAndModified);
|
||||
}
|
||||
|
||||
private void initData8(Path dir) throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path d1 = new Path(dir, "d1");
|
||||
final Path foo_f1 = new Path(foo, "f1");
|
||||
final Path bar_f1 = new Path(bar, "f1");
|
||||
final Path d1_f1 = new Path(d1, "f1");
|
||||
|
||||
DFSTestUtil.createFile(dfs, foo_f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, bar_f1, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, d1_f1, blockSize, dataNum, 0L);
|
||||
}
|
||||
|
||||
private int changeData8(Path dir, boolean createMiddleSnapshot)
|
||||
throws Exception {
|
||||
final Path foo = new Path(dir, "foo");
|
||||
final Path createdDir = new Path(dir, "c");
|
||||
final Path d1 = new Path(dir, "d1");
|
||||
final Path d1_f1 = new Path(d1, "f1");
|
||||
final Path createdDir_f1 = new Path(createdDir, "f1");
|
||||
final Path foo_f3 = new Path(foo, "f3");
|
||||
final Path new_foo = new Path(createdDir, "foo");
|
||||
final Path foo_f4 = new Path(foo, "f4");
|
||||
final Path foo_d1 = new Path(foo, "d1");
|
||||
final Path bar = new Path(dir, "bar");
|
||||
final Path bar1 = new Path(dir, "bar1");
|
||||
|
||||
int numDeletedAndModified = 0;
|
||||
DFSTestUtil.createFile(dfs, foo_f3, blockSize, dataNum, 0L);
|
||||
DFSTestUtil.createFile(dfs, createdDir_f1, blockSize, dataNum, 0L);
|
||||
dfs.rename(createdDir_f1, foo_f4);
|
||||
dfs.rename(d1_f1, createdDir_f1); // rename ./d1/f1 -> ./c/f1
|
||||
numDeletedAndModified += 1; // modify ./c/foo/d1
|
||||
|
||||
if (createMiddleSnapshot) {
|
||||
this.createMiddleSnapshotAtTarget();
|
||||
}
|
||||
|
||||
dfs.rename(d1, foo_d1);
|
||||
numDeletedAndModified += 1; // modify ./c/foo
|
||||
dfs.rename(foo, new_foo);
|
||||
dfs.rename(bar, bar1);
|
||||
return numDeletedAndModified;
|
||||
}
|
||||
|
||||
/**
|
||||
* Test a case where create a dir, then mv a existed dir into it.
|
||||
*/
|
||||
@Test
|
||||
public void testSync8() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData8(source);
|
||||
}
|
||||
initData8(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
int numDeletedModified = changeData8(target, false);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
testAndVerify(numDeletedModified);
|
||||
}
|
||||
|
||||
/**
|
||||
* Test a case where create a dir, then mv a existed dir into it.
|
||||
* The difference between this one and testSync8 is, this one
|
||||
* also creates a snapshot s1.5 in between s1 and s2.
|
||||
*/
|
||||
@Test
|
||||
public void testSync9() throws Exception {
|
||||
if (isSrcNotSameAsTgt) {
|
||||
initData8(source);
|
||||
}
|
||||
initData8(target);
|
||||
enableAndCreateFirstSnapshot();
|
||||
int numDeletedModified = changeData8(target, true);
|
||||
|
||||
createSecondSnapshotAtTarget();
|
||||
|
||||
testAndVerify(numDeletedModified);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,36 +0,0 @@
|
|||
/**
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package org.apache.hadoop.tools;
|
||||
|
||||
import org.apache.hadoop.fs.Path;
|
||||
|
||||
/**
|
||||
* Test the case "-rdiff s2 s1 src tgt".
|
||||
*/
|
||||
public class TestDistCpSyncReverseFromSource
|
||||
extends TestDistCpSyncReverseBase {
|
||||
/*
|
||||
* Initialize the source path to /target.
|
||||
* @see org.apache.hadoop.tools.TestDistCpSyncReverseBase#initSourcePath()
|
||||
*/
|
||||
@Override
|
||||
void initSourcePath() {
|
||||
setSource(new Path("/source"));
|
||||
setSrcNotSameAsTgt(true);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,36 +0,0 @@
|
|||
/**
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package org.apache.hadoop.tools;
|
||||
|
||||
import org.apache.hadoop.fs.Path;
|
||||
|
||||
/**
|
||||
* Test the case "-rdiff s2 s1 tgt tgt".
|
||||
*/
|
||||
public class TestDistCpSyncReverseFromTarget
|
||||
extends TestDistCpSyncReverseBase {
|
||||
/*
|
||||
* Initialize the source path to /target.
|
||||
* @see org.apache.hadoop.tools.TestDistCpSyncReverseBase#initSourcePath()
|
||||
*/
|
||||
@Override
|
||||
void initSourcePath() {
|
||||
setSource(new Path("/target"));
|
||||
setSrcNotSameAsTgt(false);
|
||||
}
|
||||
}
|
||||
|
|
@ -387,8 +387,7 @@ public void testToString() {
|
|||
DistCpOptions option = new DistCpOptions(new Path("abc"), new Path("xyz"));
|
||||
String val = "DistCpOptions{atomicCommit=false, syncFolder=false, "
|
||||
+ "deleteMissing=false, ignoreFailures=false, overwrite=false, "
|
||||
+ "append=false, useDiff=false, useRdiff=false, "
|
||||
+ "fromSnapshot=null, toSnapshot=null, "
|
||||
+ "append=false, useDiff=false, fromSnapshot=null, toSnapshot=null, "
|
||||
+ "skipCRC=false, blocking=true, numListstatusThreads=0, maxMaps=20, "
|
||||
+ "mapBandwidth=0.0, "
|
||||
+ "copyStrategy='uniformsize', preserveStatus=[], "
|
||||
|
|
@ -702,66 +701,61 @@ public void testAppendOption() {
|
|||
}
|
||||
}
|
||||
|
||||
// Test -diff or -rdiff
|
||||
private void testSnapshotDiffOption(boolean isDiff) {
|
||||
final String optionStr = isDiff? "-diff" : "-rdiff";
|
||||
final String optionLabel = isDiff?
|
||||
DistCpOptionSwitch.DIFF.getConfigLabel() :
|
||||
DistCpOptionSwitch.RDIFF.getConfigLabel();
|
||||
@Test
|
||||
public void testDiffOption() {
|
||||
Configuration conf = new Configuration();
|
||||
Assert.assertFalse(conf.getBoolean(optionLabel, false));
|
||||
Assert.assertFalse(conf.getBoolean(DistCpOptionSwitch.DIFF.getConfigLabel(),
|
||||
false));
|
||||
|
||||
DistCpOptions options = OptionsParser.parse(new String[] { "-update",
|
||||
optionStr, "s1", "s2",
|
||||
"-diff", "s1", "s2",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
options.appendToConf(conf);
|
||||
Assert.assertTrue(conf.getBoolean(optionLabel, false));
|
||||
Assert.assertTrue(isDiff?
|
||||
options.shouldUseDiff() : options.shouldUseRdiff());
|
||||
Assert.assertTrue(conf.getBoolean(DistCpOptionSwitch.DIFF.getConfigLabel(), false));
|
||||
Assert.assertTrue(options.shouldUseDiff());
|
||||
Assert.assertEquals("s1", options.getFromSnapshot());
|
||||
Assert.assertEquals("s2", options.getToSnapshot());
|
||||
|
||||
options = OptionsParser.parse(new String[] {
|
||||
optionStr, "s1", ".", "-update",
|
||||
"-diff", "s1", ".", "-update",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
options.appendToConf(conf);
|
||||
Assert.assertTrue(conf.getBoolean(optionLabel, false));
|
||||
Assert.assertTrue(isDiff?
|
||||
options.shouldUseDiff() : options.shouldUseRdiff());
|
||||
Assert.assertTrue(conf.getBoolean(DistCpOptionSwitch.DIFF.getConfigLabel(),
|
||||
false));
|
||||
Assert.assertTrue(options.shouldUseDiff());
|
||||
Assert.assertEquals("s1", options.getFromSnapshot());
|
||||
Assert.assertEquals(".", options.getToSnapshot());
|
||||
|
||||
// -diff/-rdiff requires two option values
|
||||
// -diff requires two option values
|
||||
try {
|
||||
OptionsParser.parse(new String[] {optionStr, "s1", "-update",
|
||||
OptionsParser.parse(new String[] {"-diff", "s1", "-update",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
fail(optionStr + " should fail with only one snapshot name");
|
||||
fail("-diff should fail with only one snapshot name");
|
||||
} catch (IllegalArgumentException e) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"Must provide both the starting and ending snapshot names", e);
|
||||
}
|
||||
|
||||
// make sure -diff/-rdiff is only valid when -update is specified
|
||||
// make sure -diff is only valid when -update is specified
|
||||
try {
|
||||
OptionsParser.parse(new String[] {optionStr, "s1", "s2",
|
||||
OptionsParser.parse(new String[] { "-diff", "s1", "s2",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
fail(optionStr + " should fail if -update option is not specified");
|
||||
fail("-diff should fail if -update option is not specified");
|
||||
} catch (IllegalArgumentException e) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"-diff/-rdiff is valid only with -update option", e);
|
||||
"Diff is valid only with update options", e);
|
||||
}
|
||||
|
||||
try {
|
||||
options = OptionsParser.parse(new String[] {
|
||||
optionStr, "s1", "s2", "-update", "-delete",
|
||||
"-diff", "s1", "s2", "-update", "-delete",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
assertFalse("-delete should be ignored when "
|
||||
+ optionStr + " is specified",
|
||||
assertFalse("-delete should be ignored when -diff is specified",
|
||||
options.shouldDeleteMissing());
|
||||
} catch (IllegalArgumentException e) {
|
||||
fail("Got unexpected IllegalArgumentException: " + e.getMessage());
|
||||
|
|
@ -769,52 +763,27 @@ private void testSnapshotDiffOption(boolean isDiff) {
|
|||
|
||||
try {
|
||||
options = OptionsParser.parse(new String[] {
|
||||
optionStr, "s1", "s2", "-delete",
|
||||
"-diff", "s1", "s2", "-delete",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
fail(optionStr + " should fail if -update option is not specified");
|
||||
fail("-diff should fail if -update option is not specified");
|
||||
} catch (IllegalArgumentException e) {
|
||||
assertFalse("-delete should be ignored when -diff is specified",
|
||||
options.shouldDeleteMissing());
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"-diff/-rdiff is valid only with -update option", e);
|
||||
"Diff is valid only with update options", e);
|
||||
}
|
||||
|
||||
try {
|
||||
OptionsParser.parse(new String[] {optionStr, "s1", "s2",
|
||||
OptionsParser.parse(new String[] { "-diff", "s1", "s2",
|
||||
"-delete", "-overwrite",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
fail(optionStr + " should fail if -update option is not specified");
|
||||
fail("-diff should fail if -update option is not specified");
|
||||
} catch (IllegalArgumentException e) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"-diff/-rdiff is valid only with -update option", e);
|
||||
"Diff is valid only with update options", e);
|
||||
}
|
||||
|
||||
final String optionStrOther = isDiff? "-rdiff" : "-diff";
|
||||
try {
|
||||
OptionsParser.parse(new String[] {
|
||||
optionStr, "s1", "s2",
|
||||
optionStrOther, "s2", "s1",
|
||||
"-update",
|
||||
"hdfs://localhost:9820/source/first",
|
||||
"hdfs://localhost:9820/target/" });
|
||||
fail(optionStr + " should fail if " + optionStrOther
|
||||
+ " is also specified");
|
||||
} catch (IllegalArgumentException e) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"-diff and -rdiff are mutually exclusive", e);
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testDiffOption() {
|
||||
testSnapshotDiffOption(true);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testRdiffOption() {
|
||||
testSnapshotDiffOption(false);
|
||||
}
|
||||
|
||||
@Test
|
||||
|
|
|
|||
Loading…
Reference in New Issue