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HDFS-4304. Make FSEditLogOp.MAX_OP_SIZE configurable. Contributed by Colin Patrick McCabe. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1449218 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2013-02-22 21:21:16 +00:00
parent 8271fae921
commit 019d6a22b1
11 changed files with 114 additions and 17 deletions
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4
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -309,9 +309,13 @@ Release 2.0.4-beta - UNRELEASED
NEW FEATURES
IMPROVEMENTS
HDFS-4222. NN is unresponsive and loses heartbeats from DNs when
configured to use LDAP and LDAP has issues. (Xiaobo Peng, suresh)
HDFS-4304. Make FSEditLogOp.MAX_OP_SIZE configurable. (Colin Patrick
McCabe via atm)
OPTIMIZATIONS
BUG FIXES

5
hadoop-hdfs-project/hadoop-hdfs/src/contrib/bkjournal/src/main/java/org/apache/hadoop/contrib/bkjournal/BookKeeperEditLogInputStream.java
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@ -163,6 +163,11 @@ public String toString() {
return ("BookKeeperEditLogInputStream {" + this.getName() + "}");
}
@Override
public void setMaxOpSize(int maxOpSize) {
reader.setMaxOpSize(maxOpSize);
}
/**
* Input stream implementation which can be used by
* FSEditLogOp.Reader

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
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@ -392,6 +392,8 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
public static final int DFS_NAMENODE_CHECKED_VOLUMES_MINIMUM_DEFAULT = 1;
public static final String DFS_WEB_AUTHENTICATION_KERBEROS_PRINCIPAL_KEY = "dfs.web.authentication.kerberos.principal";
public static final String DFS_WEB_AUTHENTICATION_KERBEROS_KEYTAB_KEY = "dfs.web.authentication.kerberos.keytab";
public static final String DFS_NAMENODE_MAX_OP_SIZE_KEY = "dfs.namenode.max.op.size";
public static final int DFS_NAMENODE_MAX_OP_SIZE_DEFAULT = 50 * 1024 * 1024;
public static final String DFS_BLOCK_LOCAL_PATH_ACCESS_USER_KEY = "dfs.block.local-path-access.user";

5
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EditLogBackupInputStream.java
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@ -142,4 +142,9 @@ public long getLastTxId() {
public boolean isInProgress() {
return true;
}
@Override
public void setMaxOpSize(int maxOpSize) {
reader.setMaxOpSize(maxOpSize);
}
}

13
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EditLogFileInputStream.java
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@ -32,6 +32,7 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.protocol.HdfsConstants;
import org.apache.hadoop.hdfs.server.common.Storage;
import org.apache.hadoop.hdfs.server.namenode.TransferFsImage.HttpGetFailedException;
@ -53,6 +54,7 @@ public class EditLogFileInputStream extends EditLogInputStream {
private final long firstTxId;
private final long lastTxId;
private final boolean isInProgress;
private int maxOpSize;
static private enum State {
UNINIT,
OPEN,
@ -118,6 +120,7 @@ private EditLogFileInputStream(LogSource log,
this.firstTxId = firstTxId;
this.lastTxId = lastTxId;
this.isInProgress = isInProgress;
this.maxOpSize = DFSConfigKeys.DFS_NAMENODE_MAX_OP_SIZE_DEFAULT;
}
private void init() throws LogHeaderCorruptException, IOException {
@ -134,6 +137,7 @@ private void init() throws LogHeaderCorruptException, IOException {
throw new LogHeaderCorruptException("No header found in log");
}
reader = new FSEditLogOp.Reader(dataIn, tracker, logVersion);
reader.setMaxOpSize(maxOpSize);
state = State.OPEN;
} finally {
if (reader == null) {
@ -412,5 +416,12 @@ public String getName() {
return url.toString();
}
}
@Override
public void setMaxOpSize(int maxOpSize) {
this.maxOpSize = maxOpSize;
if (reader != null) {
reader.setMaxOpSize(maxOpSize);
}
}
}

5
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EditLogInputStream.java
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@ -165,4 +165,9 @@ public boolean skipUntil(long txid) throws IOException {
* Return true if this stream is in progress, false if it is finalized.
*/
public abstract boolean isInProgress();
/**
* Set the maximum opcode size in bytes.
*/
public abstract void setMaxOpSize(int maxOpSize);
}

19
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogOp.java
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@ -51,6 +51,7 @@
import org.apache.hadoop.hdfs.util.XMLUtils;
import org.apache.hadoop.hdfs.util.XMLUtils.InvalidXmlException;
import org.apache.hadoop.hdfs.util.XMLUtils.Stanza;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.DeprecatedUTF8;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
@ -75,11 +76,6 @@
public abstract class FSEditLogOp {
public final FSEditLogOpCodes opCode;
long txid;
/**
* Opcode size is limited to 1.5 megabytes
*/
public static final int MAX_OP_SIZE = (3 * 1024 * 1024) / 2;
@SuppressWarnings("deprecation")
final public static class OpInstanceCache {
@ -2246,6 +2242,7 @@ public static class Reader {
private final int logVersion;
private final Checksum checksum;
private final OpInstanceCache cache;
private int maxOpSize;
/**
* Construct the reader
@ -2253,7 +2250,8 @@ public static class Reader {
* @param logVersion The version of the data coming from the stream.
*/
@SuppressWarnings("deprecation")
public Reader(DataInputStream in, StreamLimiter limiter, int logVersion) {
public Reader(DataInputStream in, StreamLimiter limiter,
int logVersion) {
this.logVersion = logVersion;
if (LayoutVersion.supports(Feature.EDITS_CHESKUM, logVersion)) {
this.checksum = new PureJavaCrc32();
@ -2269,6 +2267,11 @@ public Reader(DataInputStream in, StreamLimiter limiter, int logVersion) {
}
this.limiter = limiter;
this.cache = new OpInstanceCache();
this.maxOpSize = DFSConfigKeys.DFS_NAMENODE_MAX_OP_SIZE_DEFAULT;
}
public void setMaxOpSize(int maxOpSize) {
this.maxOpSize = maxOpSize;
}
/**
@ -2363,8 +2366,8 @@ private void verifyTerminator() throws IOException {
* problematic byte. This usually means the beginning of the opcode.
*/
private FSEditLogOp decodeOp() throws IOException {
limiter.setLimit(MAX_OP_SIZE);
in.mark(MAX_OP_SIZE);
limiter.setLimit(maxOpSize);
in.mark(maxOpSize);
if (checksum != null) {
checksum.reset();

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java
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@ -607,6 +607,12 @@ boolean loadFSImage(FSNamesystem target, MetaRecoveryContext recovery)
editStreams = FSImagePreTransactionalStorageInspector
.getEditLogStreams(storage);
}
int maxOpSize = conf.getInt(DFSConfigKeys.
DFS_NAMENODE_MAX_OP_SIZE_KEY,
DFSConfigKeys.DFS_NAMENODE_MAX_OP_SIZE_DEFAULT);
for (EditLogInputStream elis : editStreams) {
elis.setMaxOpSize(maxOpSize);
}
LOG.debug("Planning to load image :\n" + imageFile);
for (EditLogInputStream l : editStreams) {

7
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/RedundantEditLogInputStream.java
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@ -267,4 +267,11 @@ static private final class PrematureEOFException extends IOException {
super(msg);
}
}
@Override
public void setMaxOpSize(int maxOpSize) {
for (EditLogInputStream elis : streams) {
elis.setMaxOpSize(maxOpSize);
}
}
}

5
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEditLog.java
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@ -861,6 +861,11 @@ public String getName() {
public boolean isInProgress() {
return true;
}
@Override
public void setMaxOpSize(int maxOpSize) {
reader.setMaxOpSize(maxOpSize);
}
}
@Test

60
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeRecovery.java
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@ -83,6 +83,7 @@ static void runEditLogTest(EditLogTestSetup elts) throws IOException {
elfos.close();
elfos = null;
elfis = new EditLogFileInputStream(TEST_LOG_NAME);
elfis.setMaxOpSize(elts.getMaxOpSize());
// reading through normally will get you an exception
Set<Long> validTxIds = elts.getValidTxIds();
@ -143,7 +144,7 @@ static void runEditLogTest(EditLogTestSetup elts) throws IOException {
/**
* A test scenario for the edit log
*/
private interface EditLogTestSetup {
private static abstract class EditLogTestSetup {
/**
* Set up the edit log.
*/
@ -162,6 +163,13 @@ abstract public void addTransactionsToLog(EditLogOutputStream elos,
* edit log.
**/
abstract public Set<Long> getValidTxIds();
/**
* Return the maximum opcode size we will use for input.
*/
public int getMaxOpSize() {
return DFSConfigKeys.DFS_NAMENODE_MAX_OP_SIZE_DEFAULT;
}
}
static void padEditLog(EditLogOutputStream elos, int paddingLength)
@ -182,10 +190,10 @@ static void padEditLog(EditLogOutputStream elos, int paddingLength)
}
static void addDeleteOpcode(EditLogOutputStream elos,
OpInstanceCache cache) throws IOException {
OpInstanceCache cache, long txId, String path) throws IOException {
DeleteOp op = DeleteOp.getInstance(cache);
op.setTransactionId(0x0);
op.setPath("/foo");
op.setTransactionId(txId);
op.setPath(path);
op.setTimestamp(0);
elos.write(op);
}
@ -198,7 +206,7 @@ static void addDeleteOpcode(EditLogOutputStream elos,
* able to handle any amount of padding (including no padding) without
* throwing an exception.
*/
private static class EltsTestEmptyLog implements EditLogTestSetup {
private static class EltsTestEmptyLog extends EditLogTestSetup {
private int paddingLength;
public EltsTestEmptyLog(int paddingLength) {
@ -242,6 +250,42 @@ public void testEmptyExtraPaddedLog() throws IOException {
3 * EditLogFileOutputStream.MIN_PREALLOCATION_LENGTH));
}
/**
* Test using a non-default maximum opcode length.
*/
private static class EltsTestNonDefaultMaxOpSize extends EditLogTestSetup {
public EltsTestNonDefaultMaxOpSize() {
}
@Override
public void addTransactionsToLog(EditLogOutputStream elos,
OpInstanceCache cache) throws IOException {
addDeleteOpcode(elos, cache, 0, "/foo");
addDeleteOpcode(elos, cache, 1,
"/supercalifragalisticexpialadocius.supercalifragalisticexpialadocius");
}
@Override
public long getLastValidTxId() {
return 0;
}
@Override
public Set<Long> getValidTxIds() {
return Sets.newHashSet(0L);
}
public int getMaxOpSize() {
return 30;
}
}
/** Test an empty edit log with extra-long padding */
@Test(timeout=180000)
public void testNonDefaultMaxOpSize() throws IOException {
runEditLogTest(new EltsTestNonDefaultMaxOpSize());
}
/**
* Test the scenario where an edit log contains some padding (0xff) bytes
* followed by valid opcode data.
@ -249,7 +293,7 @@ public void testEmptyExtraPaddedLog() throws IOException {
* These edit logs are corrupt, but all the opcodes should be recoverable
* with recovery mode.
*/
private static class EltsTestOpcodesAfterPadding implements EditLogTestSetup {
private static class EltsTestOpcodesAfterPadding extends EditLogTestSetup {
private int paddingLength;
public EltsTestOpcodesAfterPadding(int paddingLength) {
@ -260,7 +304,7 @@ public EltsTestOpcodesAfterPadding(int paddingLength) {
public void addTransactionsToLog(EditLogOutputStream elos,
OpInstanceCache cache) throws IOException {
padEditLog(elos, paddingLength);
addDeleteOpcode(elos, cache);
addDeleteOpcode(elos, cache, 0, "/foo");
}
@Override
@ -286,7 +330,7 @@ public void testOpcodesAfterExtraPadding() throws IOException {
3 * EditLogFileOutputStream.MIN_PREALLOCATION_LENGTH));
}
private static class EltsTestGarbageInEditLog implements EditLogTestSetup {
private static class EltsTestGarbageInEditLog extends EditLogTestSetup {
final private long BAD_TXID = 4;
final private long MAX_TXID = 10;