HDFS-7722. DataNode#checkDiskError should also remove Storage when error is found. (Lei Xu via Colin P. McCabe)
(cherry picked from commit b49c3a1813)
This commit is contained in:
Colin Patrick Mccabe
parent
981a1fa815
commit
7455412a24
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@ -859,6 +859,9 @@ Release 2.7.0 - UNRELEASED
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HDFS-7806. Refactor: move StorageType from hadoop-hdfs to
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hadoop-common. (Xiaoyu Yao via Arpit Agarwal)
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HDFS-7722. DataNode#checkDiskError should also remove Storage when error
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is found. (Lei Xu via Colin P. McCabe)
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Release 2.6.1 - UNRELEASED
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INCOMPATIBLE CHANGES
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@ -53,6 +53,7 @@ import java.io.ByteArrayInputStream;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.EOFException;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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@ -73,6 +74,7 @@ import java.util.Collection;
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import java.util.Collections;
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import java.util.EnumSet;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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@ -616,20 +618,16 @@ public class DataNode extends ReconfigurableBase
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errorMessageBuilder.append(
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String.format("FAILED to ADD: %s: %s%n", volume,
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e.toString()));
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LOG.error("Failed to add volume: " + volume, e);
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}
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}
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}
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if (!changedVolumes.deactivateLocations.isEmpty()) {
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LOG.info("Deactivating volumes: " +
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Joiner.on(",").join(changedVolumes.deactivateLocations));
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data.removeVolumes(changedVolumes.deactivateLocations);
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try {
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storage.removeVolumes(changedVolumes.deactivateLocations);
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removeVolumes(changedVolumes.deactivateLocations);
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} catch (IOException e) {
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errorMessageBuilder.append(e.getMessage());
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}
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LOG.error("Failed to remove volume: " + e.getMessage(), e);
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}
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if (errorMessageBuilder.length() > 0) {
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@ -642,6 +640,79 @@ public class DataNode extends ReconfigurableBase
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}
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}
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/**
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* Remove volumes from DataNode.
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* See {@link removeVolumes(final Set<File>, boolean)} for details.
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*
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* @param locations the StorageLocations of the volumes to be removed.
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* @throws IOException
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*/
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private void removeVolumes(final Collection<StorageLocation> locations)
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throws IOException {
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if (locations.isEmpty()) {
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return;
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}
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Set<File> volumesToRemove = new HashSet<>();
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for (StorageLocation loc : locations) {
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volumesToRemove.add(loc.getFile().getAbsoluteFile());
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}
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removeVolumes(volumesToRemove, true);
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}
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/**
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* Remove volumes from DataNode.
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*
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* It does three things:
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* <li>
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* <ul>Remove volumes and block info from FsDataset.</ul>
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* <ul>Remove volumes from DataStorage.</ul>
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* <ul>Reset configuration DATA_DIR and {@link dataDirs} to represent
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* active volumes.</ul>
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* </li>
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* @param absoluteVolumePaths the absolute path of volumes.
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* @param clearFailure if true, clears the failure information related to the
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* volumes.
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* @throws IOException
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*/
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private synchronized void removeVolumes(
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final Set<File> absoluteVolumePaths, boolean clearFailure)
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throws IOException {
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for (File vol : absoluteVolumePaths) {
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Preconditions.checkArgument(vol.isAbsolute());
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}
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if (absoluteVolumePaths.isEmpty()) {
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return;
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}
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LOG.info(String.format("Deactivating volumes (clear failure=%b): %s",
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clearFailure, Joiner.on(",").join(absoluteVolumePaths)));
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IOException ioe = null;
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// Remove volumes and block infos from FsDataset.
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data.removeVolumes(absoluteVolumePaths, clearFailure);
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// Remove volumes from DataStorage.
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try {
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storage.removeVolumes(absoluteVolumePaths);
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} catch (IOException e) {
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ioe = e;
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}
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// Set configuration and dataDirs to reflect volume changes.
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for (Iterator<StorageLocation> it = dataDirs.iterator(); it.hasNext(); ) {
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StorageLocation loc = it.next();
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if (absoluteVolumePaths.contains(loc.getFile().getAbsoluteFile())) {
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it.remove();
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}
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}
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conf.set(DFS_DATANODE_DATA_DIR_KEY, Joiner.on(",").join(dataDirs));
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if (ioe != null) {
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throw ioe;
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}
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}
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private synchronized void setClusterId(final String nsCid, final String bpid
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) throws IOException {
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if(clusterId != null && !clusterId.equals(nsCid)) {
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@ -3083,10 +3154,20 @@ public class DataNode extends ReconfigurableBase
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* Check the disk error
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*/
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private void checkDiskError() {
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Set<File> unhealthyDataDirs = data.checkDataDir();
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if (unhealthyDataDirs != null && !unhealthyDataDirs.isEmpty()) {
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try {
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data.checkDataDir();
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} catch (DiskErrorException de) {
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handleDiskError(de.getMessage());
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// Remove all unhealthy volumes from DataNode.
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removeVolumes(unhealthyDataDirs, false);
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} catch (IOException e) {
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LOG.warn("Error occurred when removing unhealthy storage dirs: "
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+ e.getMessage(), e);
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}
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StringBuilder sb = new StringBuilder("DataNode failed volumes:");
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for (File dataDir : unhealthyDataDirs) {
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sb.append(dataDir.getAbsolutePath() + ";");
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}
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handleDiskError(sb.toString());
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}
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}
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@ -404,28 +404,23 @@ public class DataStorage extends Storage {
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}
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/**
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* Remove volumes from DataStorage. All volumes are removed even when the
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* Remove storage dirs from DataStorage. All storage dirs are removed even when the
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* IOException is thrown.
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*
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* @param locations a collection of volumes.
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* @param dirsToRemove a set of storage directories to be removed.
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* @throws IOException if I/O error when unlocking storage directory.
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*/
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synchronized void removeVolumes(Collection<StorageLocation> locations)
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synchronized void removeVolumes(final Set<File> dirsToRemove)
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throws IOException {
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if (locations.isEmpty()) {
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if (dirsToRemove.isEmpty()) {
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return;
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}
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Set<File> dataDirs = new HashSet<File>();
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for (StorageLocation sl : locations) {
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dataDirs.add(sl.getFile());
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}
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StringBuilder errorMsgBuilder = new StringBuilder();
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for (Iterator<StorageDirectory> it = this.storageDirs.iterator();
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it.hasNext(); ) {
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StorageDirectory sd = it.next();
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if (dataDirs.contains(sd.getRoot())) {
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if (dirsToRemove.contains(sd.getRoot())) {
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// Remove the block pool level storage first.
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for (Map.Entry<String, BlockPoolSliceStorage> entry :
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this.bpStorageMap.entrySet()) {
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@ -27,6 +27,7 @@ import java.io.InputStream;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.conf.Configuration;
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@ -113,9 +114,11 @@ public interface FsDatasetSpi<V extends FsVolumeSpi> extends FSDatasetMBean {
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* If the FSDataset supports block scanning, this function removes
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* the volumes from the block scanner.
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*
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* @param volumes The storage locations of the volumes to remove.
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* @param volumes The paths of the volumes to be removed.
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* @param clearFailure set true to clear the failure information about the
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* volumes.
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*/
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public void removeVolumes(Collection<StorageLocation> volumes);
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public void removeVolumes(Set<File> volumes, boolean clearFailure);
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/** @return a storage with the given storage ID */
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public DatanodeStorage getStorage(final String storageUuid);
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@ -388,9 +391,9 @@ public interface FsDatasetSpi<V extends FsVolumeSpi> extends FSDatasetMBean {
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/**
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* Check if all the data directories are healthy
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* @throws DiskErrorException
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* @return A set of unhealthy data directories.
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*/
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public void checkDataDir() throws DiskErrorException;
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public Set<File> checkDataDir();
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/**
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* Shutdown the FSDataset
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@ -447,41 +447,42 @@ class FsDatasetImpl implements FsDatasetSpi<FsVolumeImpl> {
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}
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/**
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* Removes a collection of volumes from FsDataset.
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* @param volumes the root directories of the volumes.
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* Removes a set of volumes from FsDataset.
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* @param volumesToRemove a set of absolute root path of each volume.
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* @param clearFailure set true to clear failure information.
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*
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* DataNode should call this function before calling
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* {@link DataStorage#removeVolumes(java.util.Collection)}.
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*/
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@Override
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public synchronized void removeVolumes(Collection<StorageLocation> volumes) {
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Set<String> volumeSet = new HashSet<>();
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for (StorageLocation sl : volumes) {
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volumeSet.add(sl.getFile().getAbsolutePath());
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public synchronized void removeVolumes(
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Set<File> volumesToRemove, boolean clearFailure) {
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// Make sure that all volumes are absolute path.
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for (File vol : volumesToRemove) {
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Preconditions.checkArgument(vol.isAbsolute(),
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String.format("%s is not absolute path.", vol.getPath()));
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}
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for (int idx = 0; idx < dataStorage.getNumStorageDirs(); idx++) {
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Storage.StorageDirectory sd = dataStorage.getStorageDir(idx);
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String volume = sd.getRoot().getAbsolutePath();
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if (volumeSet.contains(volume)) {
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LOG.info("Removing " + volume + " from FsDataset.");
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final File absRoot = sd.getRoot().getAbsoluteFile();
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if (volumesToRemove.contains(absRoot)) {
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LOG.info("Removing " + absRoot + " from FsDataset.");
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// Disable the volume from the service.
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asyncDiskService.removeVolume(sd.getCurrentDir());
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this.volumes.removeVolume(sd.getRoot());
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volumes.removeVolume(absRoot, clearFailure);
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// Removed all replica information for the blocks on the volume. Unlike
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// updating the volumeMap in addVolume(), this operation does not scan
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// disks.
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for (String bpid : volumeMap.getBlockPoolList()) {
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List<Block> blocks = new ArrayList<Block>();
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for (Iterator<ReplicaInfo> it = volumeMap.replicas(bpid).iterator();
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it.hasNext(); ) {
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ReplicaInfo block = it.next();
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String absBasePath =
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new File(block.getVolume().getBasePath()).getAbsolutePath();
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if (absBasePath.equals(volume)) {
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final File absBasePath =
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new File(block.getVolume().getBasePath()).getAbsoluteFile();
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if (absBasePath.equals(absRoot)) {
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invalidate(bpid, block);
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blocks.add(block);
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it.remove();
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}
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}
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@ -1977,50 +1978,14 @@ class FsDatasetImpl implements FsDatasetSpi<FsVolumeImpl> {
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/**
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* check if a data directory is healthy
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* if some volumes failed - make sure to remove all the blocks that belong
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* to these volumes
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* @throws DiskErrorException
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*
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* if some volumes failed - the caller must emove all the blocks that belong
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* to these failed volumes.
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* @return the failed volumes. Returns null if no volume failed.
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*/
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@Override // FsDatasetSpi
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public void checkDataDir() throws DiskErrorException {
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long totalBlocks=0, removedBlocks=0;
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List<FsVolumeImpl> failedVols = volumes.checkDirs();
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// If there no failed volumes return
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if (failedVols == null) {
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return;
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}
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// Otherwise remove blocks for the failed volumes
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long mlsec = Time.now();
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synchronized (this) {
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for (FsVolumeImpl fv: failedVols) {
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for (String bpid : fv.getBlockPoolList()) {
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Iterator<ReplicaInfo> ib = volumeMap.replicas(bpid).iterator();
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while(ib.hasNext()) {
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ReplicaInfo b = ib.next();
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totalBlocks++;
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// check if the volume block belongs to still valid
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if(b.getVolume() == fv) {
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LOG.warn("Removing replica " + bpid + ":" + b.getBlockId()
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+ " on failed volume " + fv.getCurrentDir().getAbsolutePath());
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ib.remove();
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removedBlocks++;
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}
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}
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}
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}
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} // end of sync
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mlsec = Time.now() - mlsec;
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LOG.warn("Removed " + removedBlocks + " out of " + totalBlocks +
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"(took " + mlsec + " millisecs)");
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// report the error
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StringBuilder sb = new StringBuilder();
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for (FsVolumeImpl fv : failedVols) {
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sb.append(fv.getCurrentDir().getAbsolutePath() + ";");
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}
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throw new DiskErrorException("DataNode failed volumes:" + sb);
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public Set<File> checkDataDir() {
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return volumes.checkDirs();
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}
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@ -289,7 +289,8 @@ public class FsVolumeImpl implements FsVolumeSpi {
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}
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}
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long getDfsUsed() throws IOException {
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@VisibleForTesting
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public long getDfsUsed() throws IOException {
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long dfsUsed = 0;
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synchronized(dataset) {
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for(BlockPoolSlice s : bpSlices.values()) {
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@ -24,10 +24,12 @@ import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.TreeMap;
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import java.util.Set;
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import java.util.concurrent.atomic.AtomicReference;
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import com.google.common.collect.Lists;
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@ -218,16 +220,15 @@ class FsVolumeList {
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}
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/**
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* Calls {@link FsVolumeImpl#checkDirs()} on each volume, removing any
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* volumes from the active list that result in a DiskErrorException.
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* Calls {@link FsVolumeImpl#checkDirs()} on each volume.
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*
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* Use checkDirsMutext to allow only one instance of checkDirs() call
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*
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* @return list of all the removed volumes.
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* @return list of all the failed volumes.
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*/
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List<FsVolumeImpl> checkDirs() {
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Set<File> checkDirs() {
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synchronized(checkDirsMutex) {
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ArrayList<FsVolumeImpl> removedVols = null;
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Set<File> failedVols = null;
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// Make a copy of volumes for performing modification
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final List<FsVolumeImpl> volumeList = getVolumes();
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@ -238,12 +239,12 @@ class FsVolumeList {
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fsv.checkDirs();
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} catch (DiskErrorException e) {
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FsDatasetImpl.LOG.warn("Removing failed volume " + fsv + ": ", e);
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if (removedVols == null) {
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removedVols = new ArrayList<>(1);
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if (failedVols == null) {
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failedVols = new HashSet<>(1);
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}
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removedVols.add(fsv);
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removeVolume(fsv);
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failedVols.add(new File(fsv.getBasePath()).getAbsoluteFile());
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addVolumeFailureInfo(fsv);
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removeVolume(fsv);
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} catch (ClosedChannelException e) {
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FsDatasetImpl.LOG.debug("Caught exception when obtaining " +
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"reference count on closed volume", e);
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@ -252,12 +253,12 @@ class FsVolumeList {
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}
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}
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if (removedVols != null && removedVols.size() > 0) {
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FsDatasetImpl.LOG.warn("Completed checkDirs. Removed " + removedVols.size()
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+ " volumes. Current volumes: " + this);
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if (failedVols != null && failedVols.size() > 0) {
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FsDatasetImpl.LOG.warn("Completed checkDirs. Found " + failedVols.size()
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+ " failure volumes.");
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}
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return removedVols;
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return failedVols;
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}
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}
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@ -290,6 +291,9 @@ class FsVolumeList {
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if (blockScanner != null) {
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blockScanner.addVolumeScanner(ref);
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}
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// If the volume is used to replace a failed volume, it needs to reset the
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// volume failure info for this volume.
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removeVolumeFailureInfo(new File(ref.getVolume().getBasePath()));
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FsDatasetImpl.LOG.info("Added new volume: " +
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ref.getVolume().getStorageID());
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}
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@ -337,8 +341,9 @@ class FsVolumeList {
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/**
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* Dynamically remove volume in the list.
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* @param volume the volume to be removed.
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* @param clearFailure set true to remove failure info for this volume.
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*/
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void removeVolume(File volume) {
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void removeVolume(File volume, boolean clearFailure) {
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// Make a copy of volumes to remove one volume.
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final FsVolumeImpl[] curVolumes = volumes.get();
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final List<FsVolumeImpl> volumeList = Lists.newArrayList(curVolumes);
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@ -352,8 +357,10 @@ class FsVolumeList {
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removeVolume(fsVolume);
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}
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}
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if (clearFailure) {
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removeVolumeFailureInfo(volume);
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}
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}
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VolumeFailureInfo[] getVolumeFailureInfos() {
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Collection<VolumeFailureInfo> infos = volumeFailureInfos.values();
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@ -366,7 +373,9 @@ class FsVolumeList {
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}
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private void addVolumeFailureInfo(FsVolumeImpl vol) {
|
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addVolumeFailureInfo(new VolumeFailureInfo(vol.getBasePath(), Time.now(),
|
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addVolumeFailureInfo(new VolumeFailureInfo(
|
||||
new File(vol.getBasePath()).getAbsolutePath(),
|
||||
Time.now(),
|
||||
vol.getCapacity()));
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -30,6 +30,7 @@ import java.util.HashMap;
|
|||
import java.util.LinkedList;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.Set;
|
||||
|
||||
import javax.management.NotCompliantMBeanException;
|
||||
import javax.management.ObjectName;
|
||||
|
|
@ -959,8 +960,9 @@ public class SimulatedFSDataset implements FsDatasetSpi<FsVolumeSpi> {
|
|||
}
|
||||
|
||||
@Override
|
||||
public void checkDataDir() throws DiskErrorException {
|
||||
public Set<File> checkDataDir() {
|
||||
// nothing to check for simulated data set
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override // FsDatasetSpi
|
||||
|
|
@ -1281,7 +1283,7 @@ public class SimulatedFSDataset implements FsDatasetSpi<FsVolumeSpi> {
|
|||
}
|
||||
|
||||
@Override
|
||||
public synchronized void removeVolumes(Collection<StorageLocation> volumes) {
|
||||
public synchronized void removeVolumes(Set<File> volumes, boolean clearFailure) {
|
||||
throw new UnsupportedOperationException();
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -26,6 +26,7 @@ import org.apache.hadoop.fs.BlockLocation;
|
|||
import org.apache.hadoop.fs.FSDataOutputStream;
|
||||
import org.apache.hadoop.fs.FileStatus;
|
||||
import org.apache.hadoop.fs.FileSystem;
|
||||
import org.apache.hadoop.fs.FileUtil;
|
||||
import org.apache.hadoop.fs.Path;
|
||||
import org.apache.hadoop.hdfs.BlockMissingException;
|
||||
import org.apache.hadoop.hdfs.DFSConfigKeys;
|
||||
|
|
@ -38,6 +39,7 @@ import org.apache.hadoop.hdfs.server.common.Storage;
|
|||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetTestUtil;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl;
|
||||
import org.apache.hadoop.hdfs.server.protocol.DatanodeStorage;
|
||||
import org.apache.hadoop.test.GenericTestUtils;
|
||||
import org.junit.After;
|
||||
|
|
@ -95,6 +97,8 @@ public class TestDataNodeHotSwapVolumes {
|
|||
conf.setInt(DFSConfigKeys.DFS_DF_INTERVAL_KEY, 1000);
|
||||
conf.setInt(DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY,
|
||||
1000);
|
||||
/* Allow 1 volume failure */
|
||||
conf.setInt(DFSConfigKeys.DFS_DATANODE_FAILED_VOLUMES_TOLERATED_KEY, 1);
|
||||
|
||||
MiniDFSNNTopology nnTopology =
|
||||
MiniDFSNNTopology.simpleFederatedTopology(numNameNodes);
|
||||
|
|
@ -646,4 +650,65 @@ public class TestDataNodeHotSwapVolumes {
|
|||
// this directory were removed from the previous step.
|
||||
dn.reconfigurePropertyImpl(DFS_DATANODE_DATA_DIR_KEY, oldDataDir);
|
||||
}
|
||||
|
||||
/** Get the FsVolume on the given basePath */
|
||||
private FsVolumeImpl getVolume(DataNode dn, File basePath) {
|
||||
for (FsVolumeSpi vol : dn.getFSDataset().getVolumes()) {
|
||||
if (vol.getBasePath().equals(basePath.getPath())) {
|
||||
return (FsVolumeImpl)vol;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Verify that {@link DataNode#checkDiskErrors()} removes all metadata in
|
||||
* DataNode upon a volume failure. Thus we can run reconfig on the same
|
||||
* configuration to reload the new volume on the same directory as the failed one.
|
||||
*/
|
||||
@Test(timeout=60000)
|
||||
public void testDirectlyReloadAfterCheckDiskError()
|
||||
throws IOException, TimeoutException, InterruptedException,
|
||||
ReconfigurationException {
|
||||
startDFSCluster(1, 2);
|
||||
createFile(new Path("/test"), 32, (short)2);
|
||||
|
||||
DataNode dn = cluster.getDataNodes().get(0);
|
||||
final String oldDataDir = dn.getConf().get(DFS_DATANODE_DATA_DIR_KEY);
|
||||
File dirToFail = new File(cluster.getDataDirectory(), "data1");
|
||||
|
||||
FsVolumeImpl failedVolume = getVolume(dn, dirToFail);
|
||||
assertTrue("No FsVolume was found for " + dirToFail,
|
||||
failedVolume != null);
|
||||
long used = failedVolume.getDfsUsed();
|
||||
|
||||
try {
|
||||
assertTrue("Couldn't chmod local vol: " + dirToFail,
|
||||
FileUtil.setExecutable(dirToFail, false));
|
||||
// Call and wait DataNode to detect disk failure.
|
||||
long lastDiskErrorCheck = dn.getLastDiskErrorCheck();
|
||||
dn.checkDiskErrorAsync();
|
||||
while (dn.getLastDiskErrorCheck() == lastDiskErrorCheck) {
|
||||
Thread.sleep(100);
|
||||
}
|
||||
|
||||
createFile(new Path("/test1"), 32, (short)2);
|
||||
assertEquals(used, failedVolume.getDfsUsed());
|
||||
} finally {
|
||||
// Need to restore the mode on dirToFail. Otherwise, if an Exception
|
||||
// is thrown above, the following tests can not delete this data directory
|
||||
// and thus fail to start MiniDFSCluster.
|
||||
assertTrue("Couldn't restore executable for: " + dirToFail,
|
||||
FileUtil.setExecutable(dirToFail, true));
|
||||
}
|
||||
|
||||
dn.reconfigurePropertyImpl(DFS_DATANODE_DATA_DIR_KEY, oldDataDir);
|
||||
|
||||
createFile(new Path("/test2"), 32, (short)2);
|
||||
FsVolumeImpl restoredVolume = getVolume(dn, dirToFail);
|
||||
assertTrue(restoredVolume != null);
|
||||
assertTrue(restoredVolume != failedVolume);
|
||||
// More data has been written to this volume.
|
||||
assertTrue(restoredVolume.getDfsUsed() > used);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -18,6 +18,8 @@
|
|||
package org.apache.hadoop.hdfs.server.datanode;
|
||||
|
||||
import static org.junit.Assert.assertEquals;
|
||||
import static org.junit.Assert.assertFalse;
|
||||
import static org.junit.Assert.assertNotEquals;
|
||||
import static org.junit.Assert.assertNotNull;
|
||||
import static org.junit.Assert.assertTrue;
|
||||
import static org.junit.Assume.assumeTrue;
|
||||
|
|
@ -31,6 +33,7 @@ import java.util.ArrayList;
|
|||
import java.util.HashMap;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.concurrent.TimeoutException;
|
||||
|
||||
import org.apache.hadoop.conf.Configuration;
|
||||
import org.apache.hadoop.fs.FileSystem;
|
||||
|
|
@ -57,6 +60,10 @@ import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
|
|||
import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
|
||||
import org.apache.hadoop.hdfs.server.blockmanagement.BlockManagerTestUtil;
|
||||
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants;
|
||||
import org.apache.hadoop.hdfs.server.common.Storage;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi;
|
||||
import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetTestUtil;
|
||||
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
|
||||
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
|
||||
import org.apache.hadoop.hdfs.server.protocol.DatanodeStorage;
|
||||
|
|
@ -200,6 +207,69 @@ public class TestDataNodeVolumeFailure {
|
|||
" is created and replicated");
|
||||
}
|
||||
|
||||
/**
|
||||
* Test that DataStorage and BlockPoolSliceStorage remove the failed volume
|
||||
* after failure.
|
||||
*/
|
||||
@Test(timeout=150000)
|
||||
public void testFailedVolumeBeingRemovedFromDataNode()
|
||||
throws InterruptedException, IOException, TimeoutException {
|
||||
Path file1 = new Path("/test1");
|
||||
DFSTestUtil.createFile(fs, file1, 1024, (short) 2, 1L);
|
||||
DFSTestUtil.waitReplication(fs, file1, (short) 2);
|
||||
|
||||
File dn0Vol1 = new File(dataDir, "data" + (2 * 0 + 1));
|
||||
assertTrue(FileUtil.setExecutable(dn0Vol1, false));
|
||||
DataNode dn0 = cluster.getDataNodes().get(0);
|
||||
long lastDiskErrorCheck = dn0.getLastDiskErrorCheck();
|
||||
dn0.checkDiskErrorAsync();
|
||||
// Wait checkDiskError thread finish to discover volume failure.
|
||||
while (dn0.getLastDiskErrorCheck() == lastDiskErrorCheck) {
|
||||
Thread.sleep(100);
|
||||
}
|
||||
|
||||
// Verify dn0Vol1 has been completely removed from DN0.
|
||||
// 1. dn0Vol1 is removed from DataStorage.
|
||||
DataStorage storage = dn0.getStorage();
|
||||
assertEquals(1, storage.getNumStorageDirs());
|
||||
for (int i = 0; i < storage.getNumStorageDirs(); i++) {
|
||||
Storage.StorageDirectory sd = storage.getStorageDir(i);
|
||||
assertFalse(sd.getRoot().getAbsolutePath().startsWith(
|
||||
dn0Vol1.getAbsolutePath()
|
||||
));
|
||||
}
|
||||
final String bpid = cluster.getNamesystem().getBlockPoolId();
|
||||
BlockPoolSliceStorage bpsStorage = storage.getBPStorage(bpid);
|
||||
assertEquals(1, bpsStorage.getNumStorageDirs());
|
||||
for (int i = 0; i < bpsStorage.getNumStorageDirs(); i++) {
|
||||
Storage.StorageDirectory sd = bpsStorage.getStorageDir(i);
|
||||
assertFalse(sd.getRoot().getAbsolutePath().startsWith(
|
||||
dn0Vol1.getAbsolutePath()
|
||||
));
|
||||
}
|
||||
|
||||
// 2. dn0Vol1 is removed from FsDataset
|
||||
FsDatasetSpi<? extends FsVolumeSpi> data = dn0.getFSDataset();
|
||||
for (FsVolumeSpi volume : data.getVolumes()) {
|
||||
assertNotEquals(new File(volume.getBasePath()).getAbsoluteFile(),
|
||||
dn0Vol1.getAbsoluteFile());
|
||||
}
|
||||
|
||||
// 3. all blocks on dn0Vol1 have been removed.
|
||||
for (ReplicaInfo replica : FsDatasetTestUtil.getReplicas(data, bpid)) {
|
||||
assertNotNull(replica.getVolume());
|
||||
assertNotEquals(
|
||||
new File(replica.getVolume().getBasePath()).getAbsoluteFile(),
|
||||
dn0Vol1.getAbsoluteFile());
|
||||
}
|
||||
|
||||
// 4. dn0Vol1 is not in DN0's configuration and dataDirs anymore.
|
||||
String[] dataDirStrs =
|
||||
dn0.getConf().get(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY).split(",");
|
||||
assertEquals(1, dataDirStrs.length);
|
||||
assertFalse(dataDirStrs[0].contains(dn0Vol1.getAbsolutePath()));
|
||||
}
|
||||
|
||||
/**
|
||||
* Test that there are under replication blocks after vol failures
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -403,23 +403,6 @@ public class TestDataNodeVolumeFailureReporting {
|
|||
checkFailuresAtNameNode(dm, dns.get(0), true, dn1Vol1.getAbsolutePath());
|
||||
checkFailuresAtNameNode(dm, dns.get(1), true, dn2Vol1.getAbsolutePath());
|
||||
|
||||
// Reconfigure each DataNode to remove its failed volumes.
|
||||
reconfigureDataNode(dns.get(0), dn1Vol2);
|
||||
reconfigureDataNode(dns.get(1), dn2Vol2);
|
||||
|
||||
DataNodeTestUtils.triggerHeartbeat(dns.get(0));
|
||||
DataNodeTestUtils.triggerHeartbeat(dns.get(1));
|
||||
|
||||
checkFailuresAtDataNode(dns.get(0), 1, true);
|
||||
checkFailuresAtDataNode(dns.get(1), 1, true);
|
||||
|
||||
// NN sees reduced capacity, but no volume failures.
|
||||
DFSTestUtil.waitForDatanodeStatus(dm, 3, 0, 0,
|
||||
origCapacity - (1*dnCapacity), WAIT_FOR_HEARTBEATS);
|
||||
checkAggregateFailuresAtNameNode(true, 0);
|
||||
checkFailuresAtNameNode(dm, dns.get(0), true);
|
||||
checkFailuresAtNameNode(dm, dns.get(1), true);
|
||||
|
||||
// Reconfigure again to try to add back the failed volumes.
|
||||
reconfigureDataNode(dns.get(0), dn1Vol1, dn1Vol2);
|
||||
reconfigureDataNode(dns.get(1), dn2Vol1, dn2Vol2);
|
||||
|
|
@ -460,6 +443,25 @@ public class TestDataNodeVolumeFailureReporting {
|
|||
checkAggregateFailuresAtNameNode(false, 2);
|
||||
checkFailuresAtNameNode(dm, dns.get(0), false, dn1Vol1.getAbsolutePath());
|
||||
checkFailuresAtNameNode(dm, dns.get(1), false, dn2Vol1.getAbsolutePath());
|
||||
|
||||
// Replace failed volume with healthy volume and run reconfigure DataNode.
|
||||
// The failed volume information should be cleared.
|
||||
assertTrue("Couldn't chmod local vol", FileUtil.setExecutable(dn1Vol1, true));
|
||||
assertTrue("Couldn't chmod local vol", FileUtil.setExecutable(dn2Vol1, true));
|
||||
reconfigureDataNode(dns.get(0), dn1Vol1, dn1Vol2);
|
||||
reconfigureDataNode(dns.get(1), dn2Vol1, dn2Vol2);
|
||||
|
||||
DataNodeTestUtils.triggerHeartbeat(dns.get(0));
|
||||
DataNodeTestUtils.triggerHeartbeat(dns.get(1));
|
||||
|
||||
checkFailuresAtDataNode(dns.get(0), 1, true);
|
||||
checkFailuresAtDataNode(dns.get(1), 1, true);
|
||||
|
||||
DFSTestUtil.waitForDatanodeStatus(dm, 3, 0, 0,
|
||||
origCapacity, WAIT_FOR_HEARTBEATS);
|
||||
checkAggregateFailuresAtNameNode(true, 0);
|
||||
checkFailuresAtNameNode(dm, dns.get(0), true);
|
||||
checkFailuresAtNameNode(dm, dns.get(1), true);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -61,8 +61,7 @@ public class ExternalDatasetImpl implements FsDatasetSpi<ExternalVolumeImpl> {
|
|||
}
|
||||
|
||||
@Override
|
||||
public void removeVolumes(Collection<StorageLocation> volumes) {
|
||||
|
||||
public void removeVolumes(Set<File> volumes, boolean clearFailure) {
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
@ -243,8 +242,8 @@ public class ExternalDatasetImpl implements FsDatasetSpi<ExternalVolumeImpl> {
|
|||
}
|
||||
|
||||
@Override
|
||||
public void checkDataDir() throws DiskErrorException {
|
||||
throw new DiskChecker.DiskErrorException(null);
|
||||
public Set<File> checkDataDir() {
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -195,10 +195,10 @@ public class TestFsDatasetImpl {
|
|||
final String[] dataDirs =
|
||||
conf.get(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY).split(",");
|
||||
final String volumePathToRemove = dataDirs[0];
|
||||
List<StorageLocation> volumesToRemove = new ArrayList<StorageLocation>();
|
||||
volumesToRemove.add(StorageLocation.parse(volumePathToRemove));
|
||||
Set<File> volumesToRemove = new HashSet<>();
|
||||
volumesToRemove.add(StorageLocation.parse(volumePathToRemove).getFile());
|
||||
|
||||
dataset.removeVolumes(volumesToRemove);
|
||||
dataset.removeVolumes(volumesToRemove, true);
|
||||
int expectedNumVolumes = dataDirs.length - 1;
|
||||
assertEquals("The volume has been removed from the volumeList.",
|
||||
expectedNumVolumes, dataset.getVolumes().size());
|
||||
|
|
@ -206,7 +206,7 @@ public class TestFsDatasetImpl {
|
|||
expectedNumVolumes, dataset.storageMap.size());
|
||||
|
||||
try {
|
||||
dataset.asyncDiskService.execute(volumesToRemove.get(0).getFile(),
|
||||
dataset.asyncDiskService.execute(volumesToRemove.iterator().next(),
|
||||
new Runnable() {
|
||||
@Override
|
||||
public void run() {}
|
||||
|
|
@ -248,8 +248,9 @@ public class TestFsDatasetImpl {
|
|||
|
||||
when(storage.getNumStorageDirs()).thenReturn(numExistingVolumes + 1);
|
||||
when(storage.getStorageDir(numExistingVolumes)).thenReturn(sd);
|
||||
List<StorageLocation> volumesToRemove = Arrays.asList(loc);
|
||||
dataset.removeVolumes(volumesToRemove);
|
||||
Set<File> volumesToRemove = new HashSet<>();
|
||||
volumesToRemove.add(loc.getFile());
|
||||
dataset.removeVolumes(volumesToRemove, true);
|
||||
assertEquals(numExistingVolumes, dataset.getVolumes().size());
|
||||
}
|
||||
|
||||
|
|
@ -278,12 +279,13 @@ public class TestFsDatasetImpl {
|
|||
final FsVolumeImpl newVolume = mock(FsVolumeImpl.class);
|
||||
final FsVolumeReference newRef = mock(FsVolumeReference.class);
|
||||
when(newRef.getVolume()).thenReturn(newVolume);
|
||||
when(newVolume.getBasePath()).thenReturn("data4");
|
||||
FsVolumeImpl blockedVolume = volumeList.getVolumes().get(1);
|
||||
doAnswer(new Answer() {
|
||||
@Override
|
||||
public Object answer(InvocationOnMock invocationOnMock)
|
||||
throws Throwable {
|
||||
volumeList.removeVolume(new File("data4"));
|
||||
volumeList.removeVolume(new File("data4"), false);
|
||||
volumeList.addVolume(newRef);
|
||||
return null;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue