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HDFS-6757. Simplify lease manager with INodeID. Contributed by Haohui Mai.

This commit is contained in:
Haohui Mai 2015-05-08 23:04:31 -07:00
parent 6471d18bc7
commit 00fe1ed3a4
27 changed files with 414 additions and 458 deletions
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22
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirDeleteOp.java
View File

@ -41,7 +41,8 @@ class FSDirDeleteOp {
*/
static long delete(
FSDirectory fsd, INodesInPath iip, BlocksMapUpdateInfo collectedBlocks,
List<INode> removedINodes, long mtime) throws IOException {
List<INode> removedINodes, List<Long> removedUCFiles,
long mtime) throws IOException {
if (NameNode.stateChangeLog.isDebugEnabled()) {
NameNode.stateChangeLog.debug("DIR* FSDirectory.delete: " + iip.getPath());
}
@ -54,7 +55,7 @@ class FSDirDeleteOp {
List<INodeDirectory> snapshottableDirs = new ArrayList<>();
FSDirSnapshotOp.checkSnapshot(iip.getLastINode(), snapshottableDirs);
filesRemoved = unprotectedDelete(fsd, iip, collectedBlocks,
removedINodes, mtime);
removedINodes, removedUCFiles, mtime);
fsd.getFSNamesystem().removeSnapshottableDirs(snapshottableDirs);
}
} finally {
@ -118,6 +119,7 @@ class FSDirDeleteOp {
FSNamesystem fsn = fsd.getFSNamesystem();
BlocksMapUpdateInfo collectedBlocks = new BlocksMapUpdateInfo();
List<INode> removedINodes = new ChunkedArrayList<>();
List<Long> removedUCFiles = new ChunkedArrayList<>();
final INodesInPath iip = fsd.getINodesInPath4Write(
FSDirectory.normalizePath(src), false);
@ -127,11 +129,11 @@ class FSDirDeleteOp {
List<INodeDirectory> snapshottableDirs = new ArrayList<>();
FSDirSnapshotOp.checkSnapshot(iip.getLastINode(), snapshottableDirs);
long filesRemoved = unprotectedDelete(
fsd, iip, collectedBlocks, removedINodes, mtime);
fsd, iip, collectedBlocks, removedINodes, removedUCFiles, mtime);
fsn.removeSnapshottableDirs(snapshottableDirs);
if (filesRemoved >= 0) {
fsn.removeLeasesAndINodes(src, removedINodes, false);
fsn.removeLeasesAndINodes(removedUCFiles, removedINodes, false);
fsn.removeBlocksAndUpdateSafemodeTotal(collectedBlocks);
}
}
@ -163,18 +165,19 @@ class FSDirDeleteOp {
FSDirectory fsd = fsn.getFSDirectory();
BlocksMapUpdateInfo collectedBlocks = new BlocksMapUpdateInfo();
List<INode> removedINodes = new ChunkedArrayList<>();
List<Long> removedUCFiles = new ChunkedArrayList<>();
long mtime = now();
// Unlink the target directory from directory tree
long filesRemoved = delete(
fsd, iip, collectedBlocks, removedINodes, mtime);
fsd, iip, collectedBlocks, removedINodes, removedUCFiles, mtime);
if (filesRemoved < 0) {
return null;
}
fsd.getEditLog().logDelete(src, mtime, logRetryCache);
incrDeletedFileCount(filesRemoved);
fsn.removeLeasesAndINodes(src, removedINodes, true);
fsn.removeLeasesAndINodes(removedUCFiles, removedINodes, true);
if (NameNode.stateChangeLog.isDebugEnabled()) {
NameNode.stateChangeLog.debug("DIR* Namesystem.delete: "
@ -212,12 +215,13 @@ class FSDirDeleteOp {
* @param iip the inodes resolved from the path
* @param collectedBlocks blocks collected from the deleted path
* @param removedINodes inodes that should be removed from inodeMap
* @param removedUCFiles inodes whose leases need to be released
* @param mtime the time the inode is removed
* @return the number of inodes deleted; 0 if no inodes are deleted.
*/
private static long unprotectedDelete(
FSDirectory fsd, INodesInPath iip, BlocksMapUpdateInfo collectedBlocks,
List<INode> removedINodes, long mtime) {
List<INode> removedINodes, List<Long> removedUCFiles, long mtime) {
assert fsd.hasWriteLock();
// check if target node exists
@ -248,11 +252,11 @@ class FSDirDeleteOp {
// collect block and update quota
if (!targetNode.isInLatestSnapshot(latestSnapshot)) {
targetNode.destroyAndCollectBlocks(fsd.getBlockStoragePolicySuite(),
collectedBlocks, removedINodes);
collectedBlocks, removedINodes, removedUCFiles);
} else {
QuotaCounts counts = targetNode.cleanSubtree(
fsd.getBlockStoragePolicySuite(), CURRENT_STATE_ID,
latestSnapshot, collectedBlocks, removedINodes);
latestSnapshot, collectedBlocks, removedINodes, removedUCFiles);
removed = counts.getNameSpace();
fsd.updateCountNoQuotaCheck(iip, iip.length() -1, counts.negation());
}

16
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirRenameOp.java
View File

@ -680,8 +680,6 @@ class FSDirRenameOp {
srcParent.updateModificationTime(timestamp, srcIIP.getLatestSnapshotId());
final INode dstParent = dstParentIIP.getLastINode();
dstParent.updateModificationTime(timestamp, dstIIP.getLatestSnapshotId());
// update moved lease with new filename
fsd.getFSNamesystem().unprotectedChangeLease(src, dst);
}
void restoreSource() throws QuotaExceededException {
@ -731,16 +729,20 @@ class FSDirRenameOp {
throws QuotaExceededException {
Preconditions.checkState(oldDstChild != null);
List<INode> removedINodes = new ChunkedArrayList<>();
List<Long> removedUCFiles = new ChunkedArrayList<>();
final boolean filesDeleted;
if (!oldDstChild.isInLatestSnapshot(dstIIP.getLatestSnapshotId())) {
oldDstChild.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
oldDstChild.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
filesDeleted = true;
} else {
filesDeleted = oldDstChild.cleanSubtree(bsps, Snapshot.CURRENT_STATE_ID,
dstIIP.getLatestSnapshotId(), collectedBlocks, removedINodes)
.getNameSpace() >= 0;
filesDeleted = oldDstChild.cleanSubtree(
bsps, Snapshot.CURRENT_STATE_ID,
dstIIP.getLatestSnapshotId(), collectedBlocks,
removedINodes, removedUCFiles).getNameSpace() >= 0;
}
fsd.getFSNamesystem().removeLeasesAndINodes(src, removedINodes, false);
fsd.getFSNamesystem().removeLeasesAndINodes(
removedUCFiles, removedINodes, false);
return filesDeleted;
}

11
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
View File

@ -29,6 +29,7 @@ import java.util.EnumMap;
import java.util.EnumSet;
import java.util.List;
import com.google.common.collect.Lists;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
@ -374,7 +375,7 @@ public class FSEditLogLoader {
addCloseOp.clientMachine,
addCloseOp.storagePolicyId);
iip = INodesInPath.replace(iip, iip.length() - 1, newFile);
fsNamesys.leaseManager.addLease(addCloseOp.clientName, path);
fsNamesys.leaseManager.addLease(addCloseOp.clientName, newFile.getId());
// add the op into retry cache if necessary
if (toAddRetryCache) {
@ -446,9 +447,9 @@ public class FSEditLogLoader {
"File is not under construction: " + path);
}
// One might expect that you could use removeLease(holder, path) here,
// but OP_CLOSE doesn't serialize the holder. So, remove by path.
// but OP_CLOSE doesn't serialize the holder. So, remove the inode.
if (file.isUnderConstruction()) {
fsNamesys.leaseManager.removeLeaseWithPrefixPath(path);
fsNamesys.leaseManager.removeLeases(Lists.newArrayList(file.getId()));
file.toCompleteFile(file.getModificationTime());
}
break;
@ -701,8 +702,8 @@ public class FSEditLogLoader {
renameReservedPathsOnUpgrade(reassignLeaseOp.path, logVersion);
INodeFile pendingFile = fsDir.getINode(path).asFile();
Preconditions.checkState(pendingFile.isUnderConstruction());
fsNamesys.reassignLeaseInternal(lease,
path, reassignLeaseOp.newHolder, pendingFile);
fsNamesys.reassignLeaseInternal(lease, reassignLeaseOp.newHolder,
pendingFile);
break;
}
case OP_START_LOG_SEGMENT:

46
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormat.java
View File

@ -966,8 +966,7 @@ public class FSImageFormat {
}
if (!inSnapshot) {
namesystem.leaseManager.addLease(cons
.getFileUnderConstructionFeature().getClientName(), path);
namesystem.leaseManager.addLease(uc.getClientName(), oldnode.getId());
}
}
}
@ -1297,7 +1296,7 @@ public class FSImageFormat {
// paths, so that when loading fsimage we do not put them into the lease
// map. In the future, we can remove this hack when we can bump the
// layout version.
sourceNamesystem.saveFilesUnderConstruction(out, snapshotUCMap);
saveFilesUnderConstruction(sourceNamesystem, out, snapshotUCMap);
context.checkCancelled();
sourceNamesystem.saveSecretManagerStateCompat(out, sdPath);
@ -1448,5 +1447,46 @@ public class FSImageFormat {
counter.increment();
}
}
/**
* Serializes leases.
*/
void saveFilesUnderConstruction(FSNamesystem fsn, DataOutputStream out,
Map<Long, INodeFile> snapshotUCMap) throws IOException {
// This is run by an inferior thread of saveNamespace, which holds a read
// lock on our behalf. If we took the read lock here, we could block
// for fairness if a writer is waiting on the lock.
final LeaseManager leaseManager = fsn.getLeaseManager();
final FSDirectory dir = fsn.getFSDirectory();
synchronized (leaseManager) {
Collection<Long> filesWithUC = leaseManager.getINodeIdWithLeases();
for (Long id : filesWithUC) {
// TODO: for HDFS-5428, because of rename operations, some
// under-construction files that are
// in the current fs directory can also be captured in the
// snapshotUCMap. We should remove them from the snapshotUCMap.
snapshotUCMap.remove(id);
}
out.writeInt(filesWithUC.size() + snapshotUCMap.size()); // write the size
for (Long id : filesWithUC) {
INodeFile file = dir.getInode(id).asFile();
String path = file.getFullPathName();
FSImageSerialization.writeINodeUnderConstruction(
out, file, path);
}
for (Map.Entry<Long, INodeFile> entry : snapshotUCMap.entrySet()) {
// for those snapshot INodeFileUC, we use "/.reserved/.inodes/<inodeid>"
// as their paths
StringBuilder b = new StringBuilder();
b.append(FSDirectory.DOT_RESERVED_PATH_PREFIX)
.append(Path.SEPARATOR).append(FSDirectory.DOT_INODES_STRING)
.append(Path.SEPARATOR).append(entry.getValue().getId());
FSImageSerialization.writeINodeUnderConstruction(
out, entry.getValue(), b.toString());
}
}
}
}
}

23
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormatPBINode.java
View File

@ -22,6 +22,7 @@ import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
@ -279,7 +280,8 @@ public final class FSImageFormatPBINode {
INodeFile file = dir.getInode(entry.getInodeId()).asFile();
FileUnderConstructionFeature uc = file.getFileUnderConstructionFeature();
Preconditions.checkState(uc != null); // file must be under-construction
fsn.leaseManager.addLease(uc.getClientName(), entry.getFullPath());
fsn.leaseManager.addLease(uc.getClientName(),
entry.getInodeId());
}
}
@ -576,10 +578,21 @@ public final class FSImageFormatPBINode {
}
void serializeFilesUCSection(OutputStream out) throws IOException {
Map<String, INodeFile> ucMap = fsn.getFilesUnderConstruction();
for (Map.Entry<String, INodeFile> entry : ucMap.entrySet()) {
String path = entry.getKey();
INodeFile file = entry.getValue();
Collection<Long> filesWithUC = fsn.getLeaseManager()
.getINodeIdWithLeases();
for (Long id : filesWithUC) {
INode inode = fsn.getFSDirectory().getInode(id);
if (inode == null) {
LOG.warn("Fail to find inode " + id + " when saving the leases.");
continue;
}
INodeFile file = inode.asFile();
if (!file.isUnderConstruction()) {
LOG.warn("Fail to save the lease for inode id " + id
+ " as the file is not under construction");
continue;
}
String path = file.getFullPathName();
FileUnderConstructionEntry.Builder b = FileUnderConstructionEntry
.newBuilder().setInodeId(file.getId()).setFullPath(path);
FileUnderConstructionEntry e = b.build();

87
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
View File

@ -2087,12 +2087,11 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
Block newBlock)
throws IOException {
INodeFile file = iip.getLastINode().asFile();
String src = iip.getPath();
file.recordModification(iip.getLatestSnapshotId());
file.toUnderConstruction(leaseHolder, clientMachine);
assert file.isUnderConstruction() : "inode should be under construction.";
leaseManager.addLease(
file.getFileUnderConstructionFeature().getClientName(), src);
file.getFileUnderConstructionFeature().getClientName(), file.getId());
boolean shouldRecoverNow = (newBlock == null);
BlockInfoContiguous oldBlock = file.getLastBlock();
boolean shouldCopyOnTruncate = shouldCopyOnTruncate(file, oldBlock);
@ -2568,13 +2567,15 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
} else {
if (overwrite) {
toRemoveBlocks = new BlocksMapUpdateInfo();
List<INode> toRemoveINodes = new ChunkedArrayList<INode>();
long ret = FSDirDeleteOp.delete(dir, iip, toRemoveBlocks,
toRemoveINodes, now());
List<INode> toRemoveINodes = new ChunkedArrayList<>();
List<Long> toRemoveUCFiles = new ChunkedArrayList<>();
long ret = FSDirDeleteOp.delete(
dir, iip, toRemoveBlocks, toRemoveINodes,
toRemoveUCFiles, now());
if (ret >= 0) {
iip = INodesInPath.replace(iip, iip.length() - 1, null);
FSDirDeleteOp.incrDeletedFileCount(ret);
removeLeasesAndINodes(src, toRemoveINodes, true);
removeLeasesAndINodes(toRemoveUCFiles, toRemoveINodes, true);
}
} else {
// If lease soft limit time is expired, recover the lease
@ -2601,7 +2602,7 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
throw new IOException("Unable to add " + src + " to namespace");
}
leaseManager.addLease(newNode.getFileUnderConstructionFeature()
.getClientName(), src);
.getClientName(), newNode.getId());
// Set encryption attributes if necessary
if (feInfo != null) {
@ -2745,7 +2746,7 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
file.toUnderConstruction(leaseHolder, clientMachine);
leaseManager.addLease(
file.getFileUnderConstructionFeature().getClientName(), src);
file.getFileUnderConstructionFeature().getClientName(), file.getId());
LocatedBlock ret = null;
if (!newBlock) {
@ -2897,7 +2898,7 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
Lease lease = leaseManager.getLease(holder);
if (!force && lease != null) {
Lease leaseFile = leaseManager.getLeaseByPath(src);
Lease leaseFile = leaseManager.getLease(file);
if (leaseFile != null && leaseFile.equals(lease)) {
// We found the lease for this file but the original
// holder is trying to obtain it again.
@ -3758,15 +3759,16 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
/**
* Remove leases and inodes related to a given path
* @param src The given path
* @param removedUCFiles INodes whose leases need to be released
* @param removedINodes Containing the list of inodes to be removed from
* inodesMap
* @param acquireINodeMapLock Whether to acquire the lock for inode removal
*/
void removeLeasesAndINodes(String src, List<INode> removedINodes,
void removeLeasesAndINodes(List<Long> removedUCFiles,
List<INode> removedINodes,
final boolean acquireINodeMapLock) {
assert hasWriteLock();
leaseManager.removeLeaseWithPrefixPath(src);
leaseManager.removeLeases(removedUCFiles);
// remove inodes from inodesMap
if (removedINodes != null) {
if (acquireINodeMapLock) {
@ -4156,14 +4158,13 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
return lease;
// The following transaction is not synced. Make sure it's sync'ed later.
logReassignLease(lease.getHolder(), src, newHolder);
return reassignLeaseInternal(lease, src, newHolder, pendingFile);
return reassignLeaseInternal(lease, newHolder, pendingFile);
}
Lease reassignLeaseInternal(Lease lease, String src, String newHolder,
INodeFile pendingFile) {
Lease reassignLeaseInternal(Lease lease, String newHolder, INodeFile pendingFile) {
assert hasWriteLock();
pendingFile.getFileUnderConstructionFeature().setClientName(newHolder);
return leaseManager.reassignLease(lease, src, newHolder);
return leaseManager.reassignLease(lease, pendingFile, newHolder);
}
private void commitOrCompleteLastBlock(final INodeFile fileINode,
@ -4191,7 +4192,7 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
FileUnderConstructionFeature uc = pendingFile.getFileUnderConstructionFeature();
Preconditions.checkArgument(uc != null);
leaseManager.removeLease(uc.getClientName(), src);
leaseManager.removeLease(uc.getClientName(), pendingFile);
pendingFile.recordModification(latestSnapshot);
@ -6401,58 +6402,6 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
persistBlocks(src, pendingFile, logRetryCache);
}
// rename was successful. If any part of the renamed subtree had
// files that were being written to, update with new filename.
void unprotectedChangeLease(String src, String dst) {
assert hasWriteLock();
leaseManager.changeLease(src, dst);
}
/**
* Serializes leases.
*/
void saveFilesUnderConstruction(DataOutputStream out,
Map<Long, INodeFile> snapshotUCMap) throws IOException {
// This is run by an inferior thread of saveNamespace, which holds a read
// lock on our behalf. If we took the read lock here, we could block
// for fairness if a writer is waiting on the lock.
synchronized (leaseManager) {
Map<String, INodeFile> nodes = leaseManager.getINodesUnderConstruction();
for (Map.Entry<String, INodeFile> entry : nodes.entrySet()) {
// TODO: for HDFS-5428, because of rename operations, some
// under-construction files that are
// in the current fs directory can also be captured in the
// snapshotUCMap. We should remove them from the snapshotUCMap.
snapshotUCMap.remove(entry.getValue().getId());
}
out.writeInt(nodes.size() + snapshotUCMap.size()); // write the size
for (Map.Entry<String, INodeFile> entry : nodes.entrySet()) {
FSImageSerialization.writeINodeUnderConstruction(
out, entry.getValue(), entry.getKey());
}
for (Map.Entry<Long, INodeFile> entry : snapshotUCMap.entrySet()) {
// for those snapshot INodeFileUC, we use "/.reserved/.inodes/<inodeid>"
// as their paths
StringBuilder b = new StringBuilder();
b.append(FSDirectory.DOT_RESERVED_PATH_PREFIX)
.append(Path.SEPARATOR).append(FSDirectory.DOT_INODES_STRING)
.append(Path.SEPARATOR).append(entry.getValue().getId());
FSImageSerialization.writeINodeUnderConstruction(
out, entry.getValue(), b.toString());
}
}
}
/**
* @return all the under-construction files in the lease map
*/
Map<String, INodeFile> getFilesUnderConstruction() {
synchronized (leaseManager) {
return leaseManager.getINodesUnderConstruction();
}
}
/**
* Register a Backup name-node, verifying that it belongs
* to the correct namespace, and adding it to the set of

15
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
View File

@ -403,12 +403,14 @@ public abstract class INode implements INodeAttributes, Diff.Element<byte[]> {
* @param removedINodes
* INodes collected from the descents for further cleaning up of
* inodeMap
* @param removedUCFiles
* INodes whose leases need to be released
* @return quota usage delta when deleting a snapshot
*/
public abstract QuotaCounts cleanSubtree(final BlockStoragePolicySuite bsps,
final int snapshotId,
public abstract QuotaCounts cleanSubtree(
final BlockStoragePolicySuite bsps, final int snapshotId,
int priorSnapshotId, BlocksMapUpdateInfo collectedBlocks,
List<INode> removedINodes);
List<INode> removedINodes, List<Long> removedUCFiles);
/**
* Destroy self and clear everything! If the INode is a file, this method
@ -416,7 +418,6 @@ public abstract class INode implements INodeAttributes, Diff.Element<byte[]> {
* directory, the method goes down the subtree and collects blocks from the
* descents, and clears its parent/children references as well. The method
* also clears the diff list if the INode contains snapshot diff list.
*
* @param bsps
* block storage policy suite to calculate intended storage type usage
* This is needed because INodeReference#destroyAndCollectBlocks() needs
@ -427,10 +428,12 @@ public abstract class INode implements INodeAttributes, Diff.Element<byte[]> {
* @param removedINodes
* INodes collected from the descents for further cleaning up of
* inodeMap
* @param removedUCFiles
* INodes whose leases need to be released
*/
public abstract void destroyAndCollectBlocks(
BlockStoragePolicySuite bsps,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes);
BlockStoragePolicySuite bsps, BlocksMapUpdateInfo collectedBlocks,
List<INode> removedINodes, List<Long> removedUCFiles);
/** Compute {@link ContentSummary}. Blocking call */
public final ContentSummary computeContentSummary(BlockStoragePolicySuite bsps) {

34
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
View File

@ -753,10 +753,11 @@ public class INodeDirectory extends INodeWithAdditionalFields
}
/** Call cleanSubtree(..) recursively down the subtree. */
public QuotaCounts cleanSubtreeRecursively(final BlockStoragePolicySuite bsps,
final int snapshot,
int prior, final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, final Map<INode, INode> excludedNodes) {
public QuotaCounts cleanSubtreeRecursively(
final BlockStoragePolicySuite bsps, final int snapshot, int prior,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles,
final Map<INode, INode> excludedNodes) {
QuotaCounts counts = new QuotaCounts.Builder().build();
// in case of deletion snapshot, since this call happens after we modify
// the diff list, the snapshot to be deleted has been combined or renamed
@ -771,7 +772,7 @@ public class INodeDirectory extends INodeWithAdditionalFields
continue;
} else {
QuotaCounts childCounts = child.cleanSubtree(bsps, snapshot, prior,
collectedBlocks, removedINodes);
collectedBlocks, removedINodes, removedUCFiles);
counts.add(childCounts);
}
}
@ -779,15 +780,17 @@ public class INodeDirectory extends INodeWithAdditionalFields
}
@Override
public void destroyAndCollectBlocks(final BlockStoragePolicySuite bsps,
public void destroyAndCollectBlocks(
final BlockStoragePolicySuite bsps,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
final DirectoryWithSnapshotFeature sf = getDirectoryWithSnapshotFeature();
if (sf != null) {
sf.clear(bsps, this, collectedBlocks, removedINodes);
sf.clear(bsps, this, collectedBlocks, removedINodes, removedUCFiles);
}
for (INode child : getChildrenList(Snapshot.CURRENT_STATE_ID)) {
child.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
child.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
}
if (getAclFeature() != null) {
AclStorage.removeAclFeature(getAclFeature());
@ -797,15 +800,15 @@ public class INodeDirectory extends INodeWithAdditionalFields
}
@Override
public QuotaCounts cleanSubtree(final BlockStoragePolicySuite bsps,
final int snapshotId, int priorSnapshotId,
public QuotaCounts cleanSubtree(
final BlockStoragePolicySuite bsps, final int snapshotId, int priorSnapshotId,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
DirectoryWithSnapshotFeature sf = getDirectoryWithSnapshotFeature();
// there is snapshot data
if (sf != null) {
return sf.cleanDirectory(bsps, this, snapshotId, priorSnapshotId,
collectedBlocks, removedINodes);
collectedBlocks, removedINodes, removedUCFiles);
}
// there is no snapshot data
if (priorSnapshotId == Snapshot.NO_SNAPSHOT_ID
@ -813,12 +816,13 @@ public class INodeDirectory extends INodeWithAdditionalFields
// destroy the whole subtree and collect blocks that should be deleted
QuotaCounts counts = new QuotaCounts.Builder().build();
this.computeQuotaUsage(bsps, counts, true);
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
return counts;
} else {
// process recursively down the subtree
QuotaCounts counts = cleanSubtreeRecursively(bsps, snapshotId, priorSnapshotId,
collectedBlocks, removedINodes, null);
collectedBlocks, removedINodes, removedUCFiles, null);
if (isQuotaSet()) {
getDirectoryWithQuotaFeature().addSpaceConsumed2Cache(counts.negation());
}

23
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java
View File

@ -494,28 +494,33 @@ public class INodeFile extends INodeWithAdditionalFields
}
@Override
public QuotaCounts cleanSubtree(BlockStoragePolicySuite bsps, final int snapshot,
int priorSnapshotId,
public QuotaCounts cleanSubtree(
BlockStoragePolicySuite bsps, final int snapshot, int priorSnapshotId,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
FileWithSnapshotFeature sf = getFileWithSnapshotFeature();
if (sf != null) {
return sf.cleanFile(bsps, this, snapshot, priorSnapshotId, collectedBlocks,
removedINodes);
}
QuotaCounts counts = new QuotaCounts.Builder().build();
if (snapshot == CURRENT_STATE_ID) {
if (priorSnapshotId == NO_SNAPSHOT_ID) {
// this only happens when deleting the current file and the file is not
// in any snapshot
computeQuotaUsage(bsps, counts, false);
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
} else {
FileUnderConstructionFeature uc = getFileUnderConstructionFeature();
// when deleting the current file and the file is in snapshot, we should
// clean the 0-sized block if the file is UC
FileUnderConstructionFeature uc = getFileUnderConstructionFeature();
if (uc != null) {
uc.cleanZeroSizeBlock(this, collectedBlocks);
if (removedUCFiles != null) {
removedUCFiles.add(getId());
}
}
}
}
@ -523,8 +528,9 @@ public class INodeFile extends INodeWithAdditionalFields
}
@Override
public void destroyAndCollectBlocks(BlockStoragePolicySuite bsps,
BlocksMapUpdateInfo collectedBlocks, final List<INode> removedINodes) {
public void destroyAndCollectBlocks(
BlockStoragePolicySuite bsps, BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles) {
if (blocks != null && collectedBlocks != null) {
for (BlockInfoContiguous blk : blocks) {
collectedBlocks.addDeleteBlock(blk);
@ -542,6 +548,9 @@ public class INodeFile extends INodeWithAdditionalFields
sf.getDiffs().destroyAndCollectSnapshotBlocks(collectedBlocks);
sf.clearDiffs();
}
if (isUnderConstruction() && removedUCFiles != null) {
removedUCFiles.add(getId());
}
}
@Override

12
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeMap.java
View File

@ -97,8 +97,9 @@ public class INodeMap {
}
@Override
public void destroyAndCollectBlocks(BlockStoragePolicySuite bsps,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes) {
public void destroyAndCollectBlocks(
BlockStoragePolicySuite bsps, BlocksMapUpdateInfo collectedBlocks,
List<INode> removedINodes, List<Long> removedUCFiles) {
// Nothing to do
}
@ -116,9 +117,10 @@ public class INodeMap {
}
@Override
public QuotaCounts cleanSubtree(BlockStoragePolicySuite bsps,
int snapshotId, int priorSnapshotId,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes) {
public QuotaCounts cleanSubtree(
BlockStoragePolicySuite bsps, int snapshotId, int priorSnapshotId,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes,
List<Long> removedUCFiles) {
return null;
}

55
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeReference.java
View File

@ -302,19 +302,20 @@ public abstract class INodeReference extends INode {
}
@Override // used by WithCount
public QuotaCounts cleanSubtree(BlockStoragePolicySuite bsps, int snapshot,
int prior, BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
public QuotaCounts cleanSubtree(
BlockStoragePolicySuite bsps, int snapshot, int prior, BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles) {
return referred.cleanSubtree(bsps, snapshot, prior, collectedBlocks,
removedINodes);
removedINodes, removedUCFiles);
}
@Override // used by WithCount
public void destroyAndCollectBlocks(
BlockStoragePolicySuite bsps,
BlocksMapUpdateInfo collectedBlocks, final List<INode> removedINodes) {
BlockStoragePolicySuite bsps, BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles) {
if (removeReference(this) <= 0) {
referred.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
referred.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
}
}
@ -542,9 +543,9 @@ public abstract class INodeReference extends INode {
}
@Override
public QuotaCounts cleanSubtree(BlockStoragePolicySuite bsps,
final int snapshot, int prior, final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
public QuotaCounts cleanSubtree(
BlockStoragePolicySuite bsps, final int snapshot, int prior, final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles) {
// since WithName node resides in deleted list acting as a snapshot copy,
// the parameter snapshot must be non-null
Preconditions.checkArgument(snapshot != Snapshot.CURRENT_STATE_ID);
@ -560,7 +561,7 @@ public abstract class INodeReference extends INode {
}
QuotaCounts counts = getReferredINode().cleanSubtree(bsps, snapshot, prior,
collectedBlocks, removedINodes);
collectedBlocks, removedINodes, removedUCFiles);
INodeReference ref = getReferredINode().getParentReference();
if (ref != null) {
try {
@ -581,13 +582,13 @@ public abstract class INodeReference extends INode {
}
@Override
public void destroyAndCollectBlocks(BlockStoragePolicySuite bsps,
BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
public void destroyAndCollectBlocks(
BlockStoragePolicySuite bsps, BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles) {
int snapshot = getSelfSnapshot();
if (removeReference(this) <= 0) {
getReferredINode().destroyAndCollectBlocks(bsps, collectedBlocks,
removedINodes);
removedINodes, removedUCFiles);
} else {
int prior = getPriorSnapshot(this);
INode referred = getReferredINode().asReference().getReferredINode();
@ -607,7 +608,7 @@ public abstract class INodeReference extends INode {
}
try {
QuotaCounts counts = referred.cleanSubtree(bsps, snapshot, prior,
collectedBlocks, removedINodes);
collectedBlocks, removedINodes, removedUCFiles);
INodeReference ref = getReferredINode().getParentReference();
if (ref != null) {
ref.addSpaceConsumed(counts.negation(), true);
@ -661,13 +662,16 @@ public abstract class INodeReference extends INode {
}
@Override
public QuotaCounts cleanSubtree(BlockStoragePolicySuite bsps, int snapshot, int prior,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes) {
public QuotaCounts cleanSubtree(
BlockStoragePolicySuite bsps, int snapshot, int prior,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes,
List<Long> removedUCFiles) {
if (snapshot == Snapshot.CURRENT_STATE_ID
&& prior == Snapshot.NO_SNAPSHOT_ID) {
QuotaCounts counts = new QuotaCounts.Builder().build();
this.computeQuotaUsage(bsps, counts, true);
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
return counts;
} else {
// if prior is NO_SNAPSHOT_ID, we need to check snapshot belonging to
@ -684,7 +688,7 @@ public abstract class INodeReference extends INode {
return new QuotaCounts.Builder().build();
}
return getReferredINode().cleanSubtree(bsps, snapshot, prior,
collectedBlocks, removedINodes);
collectedBlocks, removedINodes, removedUCFiles);
}
}
@ -699,11 +703,12 @@ public abstract class INodeReference extends INode {
* WithName nodes.
*/
@Override
public void destroyAndCollectBlocks(BlockStoragePolicySuite bsps,
BlocksMapUpdateInfo collectedBlocks, final List<INode> removedINodes) {
public void destroyAndCollectBlocks(
BlockStoragePolicySuite bsps, BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles) {
if (removeReference(this) <= 0) {
getReferredINode().destroyAndCollectBlocks(bsps, collectedBlocks,
removedINodes);
removedINodes, removedUCFiles);
} else {
// we will clean everything, including files, directories, and
// snapshots, that were created after this prior snapshot
@ -726,7 +731,7 @@ public abstract class INodeReference extends INode {
// compute quota usage updates before calling this destroy
// function, we use true for countDiffChange
referred.cleanSubtree(bsps, snapshot, prior, collectedBlocks,
removedINodes);
removedINodes, removedUCFiles);
} else if (referred.isDirectory()) {
// similarly, if referred is a directory, it must be an
// INodeDirectory with snapshot
@ -734,7 +739,7 @@ public abstract class INodeReference extends INode {
Preconditions.checkState(dir.isWithSnapshot());
try {
DirectoryWithSnapshotFeature.destroyDstSubtree(bsps, dir, snapshot,
prior, collectedBlocks, removedINodes);
prior, collectedBlocks, removedINodes, removedUCFiles);
} catch (QuotaExceededException e) {
LOG.error("should not exceed quota while snapshot deletion", e);
}

14
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeSymlink.java
View File

@ -73,21 +73,23 @@ public class INodeSymlink extends INodeWithAdditionalFields {
}
@Override
public QuotaCounts cleanSubtree(BlockStoragePolicySuite bsps,
final int snapshotId, int priorSnapshotId,
public QuotaCounts cleanSubtree(
BlockStoragePolicySuite bsps, final int snapshotId, int priorSnapshotId,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
if (snapshotId == Snapshot.CURRENT_STATE_ID
&& priorSnapshotId == Snapshot.NO_SNAPSHOT_ID) {
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
}
return new QuotaCounts.Builder().nameSpace(1).build();
}
@Override
public void destroyAndCollectBlocks(final BlockStoragePolicySuite bsps,
public void destroyAndCollectBlocks(
final BlockStoragePolicySuite bsps,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
removedINodes.add(this);
}

286
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/LeaseManager.java
View File

@ -22,20 +22,17 @@ import static org.apache.hadoop.util.Time.monotonicNow;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.NavigableSet;
import java.util.NoSuchElementException;
import java.util.PriorityQueue;
import java.util.SortedMap;
import java.util.TreeMap;
import java.util.TreeSet;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.UnresolvedLinkException;
import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoContiguous;
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants;
import org.apache.hadoop.util.Daemon;
@ -78,15 +75,17 @@ public class LeaseManager {
// Used for handling lock-leases
// Mapping: leaseHolder -> Lease
//
private final SortedMap<String, Lease> leases = new TreeMap<String, Lease>();
private final SortedMap<String, Lease> leases = new TreeMap<>();
// Set of: Lease
private final NavigableSet<Lease> sortedLeases = new TreeSet<Lease>();
//
// Map path names to leases. It is protected by the sortedLeases lock.
// The map stores pathnames in lexicographical order.
//
private final SortedMap<String, Lease> sortedLeasesByPath = new TreeMap<String, Lease>();
private final PriorityQueue<Lease> sortedLeases = new PriorityQueue<>(512,
new Comparator<Lease>() {
@Override
public int compare(Lease o1, Lease o2) {
return Long.signum(o1.getLastUpdate() - o2.getLastUpdate());
}
});
// INodeID -> Lease
private final HashMap<Long, Lease> leasesById = new HashMap<>();
private Daemon lmthread;
private volatile boolean shouldRunMonitor;
@ -97,60 +96,44 @@ public class LeaseManager {
return leases.get(holder);
}
@VisibleForTesting
int getNumSortedLeases() {return sortedLeases.size();}
/**
* This method iterates through all the leases and counts the number of blocks
* which are not COMPLETE. The FSNamesystem read lock MUST be held before
* calling this method.
* @return
*/
synchronized long getNumUnderConstructionBlocks() {
assert this.fsnamesystem.hasReadLock() : "The FSNamesystem read lock wasn't"
+ "acquired before counting under construction blocks";
long numUCBlocks = 0;
for (Lease lease : sortedLeases) {
for (String path : lease.getPaths()) {
final INodeFile cons;
try {
cons = this.fsnamesystem.getFSDirectory().getINode(path).asFile();
for (Long id : getINodeIdWithLeases()) {
final INodeFile cons = fsnamesystem.getFSDirectory().getInode(id).asFile();
Preconditions.checkState(cons.isUnderConstruction());
} catch (UnresolvedLinkException e) {
throw new AssertionError("Lease files should reside on this FS");
}
BlockInfoContiguous[] blocks = cons.getBlocks();
if(blocks == null)
if(blocks == null) {
continue;
}
for(BlockInfoContiguous b : blocks) {
if(!b.isComplete())
numUCBlocks++;
}
}
}
LOG.info("Number of blocks under construction: " + numUCBlocks);
return numUCBlocks;
}
Collection<Long> getINodeIdWithLeases() {return leasesById.keySet();}
/** @return the lease containing src */
public Lease getLeaseByPath(String src) {return sortedLeasesByPath.get(src);}
public synchronized Lease getLease(INodeFile src) {return leasesById.get(src.getId());}
/** @return the number of leases currently in the system */
@VisibleForTesting
public synchronized int countLease() {return sortedLeases.size();}
/** @return the number of paths contained in all leases */
synchronized int countPath() {
int count = 0;
for(Lease lease : sortedLeases) {
count += lease.getPaths().size();
}
return count;
}
/**
* Adds (or re-adds) the lease for the specified file.
*/
synchronized Lease addLease(String holder, String src) {
synchronized Lease addLease(String holder, long inodeId) {
Lease lease = getLease(holder);
if (lease == null) {
lease = new Lease(holder);
@ -159,23 +142,24 @@ public class LeaseManager {
} else {
renewLease(lease);
}
sortedLeasesByPath.put(src, lease);
lease.paths.add(src);
leasesById.put(inodeId, lease);
lease.files.add(inodeId);
return lease;
}
/**
* Remove the specified lease and src.
*/
synchronized void removeLease(Lease lease, String src) {
sortedLeasesByPath.remove(src);
if (!lease.removePath(src)) {
private synchronized void removeLease(Lease lease, long inodeId) {
leasesById.remove(inodeId);
if (!lease.removeFile(inodeId)) {
if (LOG.isDebugEnabled()) {
LOG.debug(src + " not found in lease.paths (=" + lease.paths + ")");
LOG.debug("inode " + inodeId + " not found in lease.files (=" + lease
+ ")");
}
}
if (!lease.hasPath()) {
if (!lease.hasFiles()) {
leases.remove(lease.holder);
if (!sortedLeases.remove(lease)) {
LOG.error(lease + " not found in sortedLeases");
@ -186,31 +170,32 @@ public class LeaseManager {
/**
* Remove the lease for the specified holder and src
*/
synchronized void removeLease(String holder, String src) {
synchronized void removeLease(String holder, INodeFile src) {
Lease lease = getLease(holder);
if (lease != null) {
removeLease(lease, src);
removeLease(lease, src.getId());
} else {
LOG.warn("Removing non-existent lease! holder=" + holder +
" src=" + src);
" src=" + src.getFullPathName());
}
}
synchronized void removeAllLeases() {
sortedLeases.clear();
sortedLeasesByPath.clear();
leasesById.clear();
leases.clear();
}
/**
* Reassign lease for file src to the new holder.
*/
synchronized Lease reassignLease(Lease lease, String src, String newHolder) {
synchronized Lease reassignLease(Lease lease, INodeFile src,
String newHolder) {
assert newHolder != null : "new lease holder is null";
if (lease != null) {
removeLease(lease, src);
removeLease(lease, src.getId());
}
return addLease(newHolder, src);
return addLease(newHolder, src.getId());
}
/**
@ -243,10 +228,10 @@ public class LeaseManager {
* checks in. If the client dies and allows its lease to
* expire, all the corresponding locks can be released.
*************************************************************/
class Lease implements Comparable<Lease> {
class Lease {
private final String holder;
private long lastUpdate;
private final Collection<String> paths = new TreeSet<String>();
private final HashSet<Long> files = new HashSet<>();
/** Only LeaseManager object can create a lease */
private Lease(String holder) {
@ -269,44 +254,16 @@ public class LeaseManager {
}
/** Does this lease contain any path? */
boolean hasPath() {return !paths.isEmpty();}
boolean hasFiles() {return !files.isEmpty();}
boolean removePath(String src) {
return paths.remove(src);
boolean removeFile(long inodeId) {
return files.remove(inodeId);
}
@Override
public String toString() {
return "[Lease. Holder: " + holder
+ ", pendingcreates: " + paths.size() + "]";
}
@Override
public int compareTo(Lease o) {
Lease l1 = this;
Lease l2 = o;
long lu1 = l1.lastUpdate;
long lu2 = l2.lastUpdate;
if (lu1 < lu2) {
return -1;
} else if (lu1 > lu2) {
return 1;
} else {
return l1.holder.compareTo(l2.holder);
}
}
@Override
public boolean equals(Object o) {
if (!(o instanceof Lease)) {
return false;
}
Lease obj = (Lease) o;
if (lastUpdate == obj.lastUpdate &&
holder.equals(obj.holder)) {
return true;
}
return false;
+ ", pending creates: " + files.size() + "]";
}
@Override
@ -314,82 +271,26 @@ public class LeaseManager {
return holder.hashCode();
}
Collection<String> getPaths() {
return paths;
}
private Collection<Long> getFiles() { return files; }
String getHolder() {
return holder;
}
void replacePath(String oldpath, String newpath) {
paths.remove(oldpath);
paths.add(newpath);
}
@VisibleForTesting
long getLastUpdate() {
return lastUpdate;
}
}
synchronized void changeLease(String src, String dst) {
if (LOG.isDebugEnabled()) {
LOG.debug(getClass().getSimpleName() + ".changelease: " +
" src=" + src + ", dest=" + dst);
}
final int len = src.length();
for(Map.Entry<String, Lease> entry
: findLeaseWithPrefixPath(src, sortedLeasesByPath).entrySet()) {
final String oldpath = entry.getKey();
final Lease lease = entry.getValue();
// replace stem of src with new destination
final String newpath = dst + oldpath.substring(len);
if (LOG.isDebugEnabled()) {
LOG.debug("changeLease: replacing " + oldpath + " with " + newpath);
}
lease.replacePath(oldpath, newpath);
sortedLeasesByPath.remove(oldpath);
sortedLeasesByPath.put(newpath, lease);
@VisibleForTesting
synchronized void removeLeases(Collection<Long> inodes) {
for (long inode : inodes) {
Lease lease = leasesById.get(inode);
if (lease != null) {
removeLease(lease, inode);
}
}
synchronized void removeLeaseWithPrefixPath(String prefix) {
for(Map.Entry<String, Lease> entry
: findLeaseWithPrefixPath(prefix, sortedLeasesByPath).entrySet()) {
if (LOG.isDebugEnabled()) {
LOG.debug(LeaseManager.class.getSimpleName()
+ ".removeLeaseWithPrefixPath: entry=" + entry);
}
removeLease(entry.getValue(), entry.getKey());
}
}
static private Map<String, Lease> findLeaseWithPrefixPath(
String prefix, SortedMap<String, Lease> path2lease) {
if (LOG.isDebugEnabled()) {
LOG.debug(LeaseManager.class.getSimpleName() + ".findLease: prefix=" + prefix);
}
final Map<String, Lease> entries = new HashMap<String, Lease>();
int srclen = prefix.length();
// prefix may ended with '/'
if (prefix.charAt(srclen - 1) == Path.SEPARATOR_CHAR) {
srclen -= 1;
}
for(Map.Entry<String, Lease> entry : path2lease.tailMap(prefix).entrySet()) {
final String p = entry.getKey();
if (!p.startsWith(prefix)) {
return entries;
}
if (p.length() == srclen || p.charAt(srclen) == Path.SEPARATOR_CHAR) {
entries.put(entry.getKey(), entry.getValue());
}
}
return entries;
}
public void setLeasePeriod(long softLimit, long hardLimit) {
@ -428,30 +329,13 @@ public class LeaseManager {
if (LOG.isDebugEnabled()) {
LOG.debug(name + " is interrupted", ie);
}
} catch(Throwable e) {
LOG.warn("Unexpected throwable: ", e);
}
}
}
}
/**
* Get the list of inodes corresponding to valid leases.
* @return list of inodes
*/
Map<String, INodeFile> getINodesUnderConstruction() {
Map<String, INodeFile> inodes = new TreeMap<String, INodeFile>();
for (String p : sortedLeasesByPath.keySet()) {
// verify that path exists in namespace
try {
INodeFile node = INodeFile.valueOf(fsnamesystem.dir.getINode(p), p);
Preconditions.checkState(node.isUnderConstruction());
inodes.put(p, node);
} catch (IOException ioe) {
LOG.error(ioe);
}
}
return inodes;
}
/** Check the leases beginning from the oldest.
* @return true is sync is needed.
*/
@ -459,34 +343,35 @@ public class LeaseManager {
synchronized boolean checkLeases() {
boolean needSync = false;
assert fsnamesystem.hasWriteLock();
Lease leaseToCheck = null;
try {
leaseToCheck = sortedLeases.first();
} catch(NoSuchElementException e) {}
while(leaseToCheck != null) {
if (!leaseToCheck.expiredHardLimit()) {
break;
}
while(!sortedLeases.isEmpty() && sortedLeases.peek().expiredHardLimit()) {
Lease leaseToCheck = sortedLeases.poll();
LOG.info(leaseToCheck + " has expired hard limit");
final List<String> removing = new ArrayList<String>();
// need to create a copy of the oldest lease paths, because
// internalReleaseLease() removes paths corresponding to empty files,
final List<Long> removing = new ArrayList<>();
// need to create a copy of the oldest lease files, because
// internalReleaseLease() removes files corresponding to empty files,
// i.e. it needs to modify the collection being iterated over
// causing ConcurrentModificationException
String[] leasePaths = new String[leaseToCheck.getPaths().size()];
leaseToCheck.getPaths().toArray(leasePaths);
for(String p : leasePaths) {
Collection<Long> files = leaseToCheck.getFiles();
Long[] leaseINodeIds = files.toArray(new Long[files.size()]);
FSDirectory fsd = fsnamesystem.getFSDirectory();
String p = null;
for(Long id : leaseINodeIds) {
try {
INodesInPath iip = fsnamesystem.getFSDirectory().getINodesInPath(p,
true);
boolean completed = fsnamesystem.internalReleaseLease(leaseToCheck, p,
iip, HdfsServerConstants.NAMENODE_LEASE_HOLDER);
INodesInPath iip = INodesInPath.fromINode(fsd.getInode(id));
p = iip.getPath();
// Sanity check to make sure the path is correct
if (!p.startsWith("/")) {
throw new IOException("Invalid path in the lease " + p);
}
boolean completed = fsnamesystem.internalReleaseLease(
leaseToCheck, p, iip,
HdfsServerConstants.NAMENODE_LEASE_HOLDER);
if (LOG.isDebugEnabled()) {
if (completed) {
LOG.debug("Lease recovery for " + p + " is complete. File closed.");
LOG.debug("Lease recovery for inode " + id + " is complete. " +
"File closed.");
} else {
LOG.debug("Started block recovery " + p + " lease " + leaseToCheck);
}
@ -498,22 +383,15 @@ public class LeaseManager {
} catch (IOException e) {
LOG.error("Cannot release the path " + p + " in the lease "
+ leaseToCheck, e);
removing.add(p);
removing.add(id);
}
}
for(String p : removing) {
removeLease(leaseToCheck, p);
for(Long id : removing) {
removeLease(leaseToCheck, id);
}
leaseToCheck = sortedLeases.higher(leaseToCheck);
}
try {
if(leaseToCheck != sortedLeases.first()) {
LOG.warn("Unable to release hard-limit expired lease: "
+ sortedLeases.first());
}
} catch(NoSuchElementException e) {}
return needSync;
}
@ -522,7 +400,7 @@ public class LeaseManager {
return getClass().getSimpleName() + "= {"
+ "\n leases=" + leases
+ "\n sortedLeases=" + sortedLeases
+ "\n sortedLeasesByPath=" + sortedLeasesByPath
+ "\n leasesById=" + leasesById
+ "\n}";
}
@ -552,9 +430,15 @@ public class LeaseManager {
* its leases immediately. This is for use by unit tests.
*/
@VisibleForTesting
void triggerMonitorCheckNow() {
public void triggerMonitorCheckNow() {
Preconditions.checkState(lmthread != null,
"Lease monitor is not running");
lmthread.interrupt();
}
@VisibleForTesting
public void runLeaseChecks() {
checkLeases();
}
}

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/DirectorySnapshottableFeature.java
View File

@ -216,7 +216,7 @@ public class DirectorySnapshottableFeature extends DirectoryWithSnapshotFeature
int prior = Snapshot.findLatestSnapshot(snapshotRoot, snapshot.getId());
try {
QuotaCounts counts = snapshotRoot.cleanSubtree(bsps, snapshot.getId(),
prior, collectedBlocks, removedINodes);
prior, collectedBlocks, removedINodes, null);
INodeDirectory parent = snapshotRoot.getParent();
if (parent != null) {
// there will not be any WithName node corresponding to the deleted

69
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/DirectoryWithSnapshotFeature.java
View File

@ -97,15 +97,15 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
/** clear the created list */
private QuotaCounts destroyCreatedList(
final BlockStoragePolicySuite bsps,
final INodeDirectory currentINode,
final BlockStoragePolicySuite bsps, final INodeDirectory currentINode,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
QuotaCounts counts = new QuotaCounts.Builder().build();
final List<INode> createdList = getList(ListType.CREATED);
for (INode c : createdList) {
c.computeQuotaUsage(bsps, counts, true);
c.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
c.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
// c should be contained in the children list, remove it
currentINode.removeChild(c);
}
@ -117,12 +117,13 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
private QuotaCounts destroyDeletedList(
final BlockStoragePolicySuite bsps,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
QuotaCounts counts = new QuotaCounts.Builder().build();
final List<INode> deletedList = getList(ListType.DELETED);
for (INode d : deletedList) {
d.computeQuotaUsage(bsps, counts, false);
d.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
d.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
removedUCFiles);
}
deletedList.clear();
return counts;
@ -210,8 +211,8 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
@Override
QuotaCounts combinePosteriorAndCollectBlocks(
final BlockStoragePolicySuite bsps,
final INodeDirectory currentDir, final DirectoryDiff posterior,
final BlockStoragePolicySuite bsps, final INodeDirectory currentDir,
final DirectoryDiff posterior,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final QuotaCounts counts = new QuotaCounts.Builder().build();
@ -221,7 +222,8 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
public void process(INode inode) {
if (inode != null) {
inode.computeQuotaUsage(bsps, counts, false);
inode.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
inode.destroyAndCollectBlocks(bsps, collectedBlocks, removedINodes,
null);
}
}
});
@ -324,7 +326,8 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
BlocksMapUpdateInfo collectedBlocks, final List<INode> removedINodes) {
// this diff has been deleted
QuotaCounts counts = new QuotaCounts.Builder().build();
counts.add(diff.destroyDeletedList(bsps, collectedBlocks, removedINodes));
counts.add(diff.destroyDeletedList(bsps, collectedBlocks, removedINodes,
null));
INodeDirectoryAttributes snapshotINode = getSnapshotINode();
if (snapshotINode != null && snapshotINode.getAclFeature() != null) {
AclStorage.removeAclFeature(snapshotINode.getAclFeature());
@ -411,21 +414,23 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
public static void destroyDstSubtree(
final BlockStoragePolicySuite bsps, INode inode, final int snapshot,
final int prior, final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) throws QuotaExceededException {
final List<INode> removedINodes, List<Long> removedUCFiles) throws QuotaExceededException {
Preconditions.checkArgument(prior != Snapshot.NO_SNAPSHOT_ID);
if (inode.isReference()) {
if (inode instanceof INodeReference.WithName
&& snapshot != Snapshot.CURRENT_STATE_ID) {
// this inode has been renamed before the deletion of the DstReference
// subtree
inode.cleanSubtree(bsps, snapshot, prior, collectedBlocks, removedINodes);
inode.cleanSubtree(bsps, snapshot, prior, collectedBlocks, removedINodes,
removedUCFiles);
} else {
// for DstReference node, continue this process to its subtree
destroyDstSubtree(bsps, inode.asReference().getReferredINode(), snapshot,
prior, collectedBlocks, removedINodes);
prior, collectedBlocks, removedINodes, removedUCFiles);
}
} else if (inode.isFile()) {
inode.cleanSubtree(bsps, snapshot, prior, collectedBlocks, removedINodes);
inode.cleanSubtree(bsps, snapshot, prior, collectedBlocks, removedINodes,
removedUCFiles);
} else if (inode.isDirectory()) {
Map<INode, INode> excludedNodes = null;
INodeDirectory dir = inode.asDirectory();
@ -445,7 +450,7 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
priorDiff = diffList.getDiffById(prior);
if (priorDiff != null && priorDiff.getSnapshotId() == prior) {
priorDiff.diff.destroyCreatedList(bsps, dir, collectedBlocks,
removedINodes);
removedINodes, removedUCFiles);
}
}
for (INode child : inode.asDirectory().getChildrenList(prior)) {
@ -453,7 +458,7 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
continue;
}
destroyDstSubtree(bsps, child, snapshot, prior, collectedBlocks,
removedINodes);
removedINodes, removedUCFiles);
}
}
}
@ -466,13 +471,13 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
* @param post The post snapshot.
* @param prior The id of the prior snapshot.
* @param collectedBlocks Used to collect blocks for later deletion.
* @param removedUCFiles
* @return Quota usage update.
*/
private static QuotaCounts cleanDeletedINode(
final BlockStoragePolicySuite bsps, INode inode,
final int post, final int prior,
final BlockStoragePolicySuite bsps, INode inode, final int post, final int prior,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
final List<INode> removedINodes, List<Long> removedUCFiles) {
QuotaCounts counts = new QuotaCounts.Builder().build();
Deque<INode> queue = new ArrayDeque<INode>();
queue.addLast(inode);
@ -481,7 +486,8 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
if (topNode instanceof INodeReference.WithName) {
INodeReference.WithName wn = (INodeReference.WithName) topNode;
if (wn.getLastSnapshotId() >= post) {
wn.cleanSubtree(bsps, post, prior, collectedBlocks, removedINodes);
wn.cleanSubtree(bsps, post, prior, collectedBlocks, removedINodes,
removedUCFiles);
}
// For DstReference node, since the node is not in the created list of
// prior, we should treat it as regular file/dir
@ -500,7 +506,7 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
if (priorDiff != null && priorDiff.getSnapshotId() == prior) {
priorChildrenDiff = priorDiff.getChildrenDiff();
counts.add(priorChildrenDiff.destroyCreatedList(bsps, dir,
collectedBlocks, removedINodes));
collectedBlocks, removedINodes, removedUCFiles));
}
}
@ -631,7 +637,8 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
}
public void clear(BlockStoragePolicySuite bsps, INodeDirectory currentINode,
final BlocksMapUpdateInfo collectedBlocks, final List<INode> removedINodes) {
final BlocksMapUpdateInfo collectedBlocks, final List<INode>
removedINodes, final List<Long> removedUCFiles) {
// destroy its diff list
for (DirectoryDiff diff : diffs) {
diff.destroyDiffAndCollectBlocks(bsps, currentINode, collectedBlocks,
@ -721,10 +728,10 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
}
}
public QuotaCounts cleanDirectory(final BlockStoragePolicySuite bsps, final INodeDirectory currentINode,
final int snapshot, int prior,
final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) {
public QuotaCounts cleanDirectory(
final BlockStoragePolicySuite bsps, final INodeDirectory currentINode,
final int snapshot, int prior, final BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes, List<Long> removedUCFiles) {
QuotaCounts counts = new QuotaCounts.Builder().build();
Map<INode, INode> priorCreated = null;
Map<INode, INode> priorDeleted = null;
@ -734,10 +741,10 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
DirectoryDiff lastDiff = diffs.getLast();
if (lastDiff != null) {
counts.add(lastDiff.diff.destroyCreatedList(bsps, currentINode,
collectedBlocks, removedINodes));
collectedBlocks, removedINodes, removedUCFiles));
}
counts.add(currentINode.cleanSubtreeRecursively(bsps, snapshot, prior,
collectedBlocks, removedINodes, priorDeleted));
collectedBlocks, removedINodes, removedUCFiles, priorDeleted));
} else {
// update prior
prior = getDiffs().updatePrior(snapshot, prior);
@ -756,7 +763,7 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
counts.add(getDiffs().deleteSnapshotDiff(bsps, snapshot, prior,
currentINode, collectedBlocks, removedINodes));
counts.add(currentINode.cleanSubtreeRecursively(bsps, snapshot, prior,
collectedBlocks, removedINodes, priorDeleted));
collectedBlocks, removedINodes, removedUCFiles, priorDeleted));
// check priorDiff again since it may be created during the diff deletion
if (prior != Snapshot.NO_SNAPSHOT_ID) {
@ -773,7 +780,7 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
ListType.CREATED)) {
if (priorCreated.containsKey(cNode)) {
counts.add(cNode.cleanSubtree(bsps, snapshot, Snapshot.NO_SNAPSHOT_ID,
collectedBlocks, removedINodes));
collectedBlocks, removedINodes, removedUCFiles));
}
}
}
@ -790,7 +797,7 @@ public class DirectoryWithSnapshotFeature implements INode.Feature {
ListType.DELETED)) {
if (priorDeleted == null || !priorDeleted.containsKey(dNode)) {
counts.add(cleanDeletedINode(bsps, dNode, snapshot, prior,
collectedBlocks, removedINodes));
collectedBlocks, removedINodes, removedUCFiles));
}
}
}

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/FileWithSnapshotFeature.java
View File

@ -213,7 +213,7 @@ public class FileWithSnapshotFeature implements INode.Feature {
final BlocksMapUpdateInfo info, final List<INode> removedINodes) {
// check if everything is deleted.
if (isCurrentFileDeleted() && getDiffs().asList().isEmpty()) {
file.destroyAndCollectBlocks(bsps, info, removedINodes);
file.destroyAndCollectBlocks(bsps, info, removedINodes, null);
return;
}
// find max file size.

4
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLease.java
View File

@ -59,8 +59,8 @@ import org.mockito.Mockito;
public class TestLease {
static boolean hasLease(MiniDFSCluster cluster, Path src) {
return NameNodeAdapter.getLeaseManager(cluster.getNamesystem()
).getLeaseByPath(src.toString()) != null;
return NameNodeAdapter.getLeaseForPath(cluster.getNameNode(),
src.toString()) != null;
}
static int leaseCount(MiniDFSCluster cluster) {

21
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NameNodeAdapter.java
View File

@ -135,8 +135,19 @@ public class NameNodeAdapter {
namesystem.leaseManager.triggerMonitorCheckNow();
}
public static Lease getLeaseForPath(NameNode nn, String path) {
final FSNamesystem fsn = nn.getNamesystem();
INode inode;
try {
inode = fsn.getFSDirectory().getINode(path, false);
} catch (UnresolvedLinkException e) {
throw new RuntimeException("Lease manager should not support symlinks");
}
return inode == null ? null : fsn.leaseManager.getLease((INodeFile) inode);
}
public static String getLeaseHolderForPath(NameNode namenode, String path) {
Lease l = namenode.getNamesystem().leaseManager.getLeaseByPath(path);
Lease l = getLeaseForPath(namenode, path);
return l == null? null: l.getHolder();
}
@ -145,12 +156,8 @@ public class NameNodeAdapter {
* or -1 in the case that the lease doesn't exist.
*/
public static long getLeaseRenewalTime(NameNode nn, String path) {
LeaseManager lm = nn.getNamesystem().leaseManager;
Lease l = lm.getLeaseByPath(path);
if (l == null) {
return -1;
}
return l.getLastUpdate();
Lease l = getLeaseForPath(nn, path);
return l == null ? -1 : l.getLastUpdate();
}
/**

11
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestDiskspaceQuotaUpdate.java
View File

@ -213,11 +213,12 @@ public class TestDiskspaceQuotaUpdate {
// ignore
}
LeaseManager lm = cluster.getNamesystem().getLeaseManager();
// check that the file exists, isn't UC, and has no dangling lease
INodeFile inode = fsdir.getINode(file.toString()).asFile();
Assert.assertNotNull(inode);
Assert.assertFalse("should not be UC", inode.isUnderConstruction());
Assert.assertNull("should not have a lease", cluster.getNamesystem().getLeaseManager().getLeaseByPath(file.toString()));
Assert.assertNull("should not have a lease", lm.getLease(inode));
// make sure the quota usage is unchanged
final long newSpaceUsed = dirNode.getDirectoryWithQuotaFeature()
.getSpaceConsumed().getStorageSpace();
@ -256,11 +257,11 @@ public class TestDiskspaceQuotaUpdate {
}
// check that the file exists, isn't UC, and has no dangling lease
LeaseManager lm = cluster.getNamesystem().getLeaseManager();
INodeFile inode = fsdir.getINode(file.toString()).asFile();
Assert.assertNotNull(inode);
Assert.assertFalse("should not be UC", inode.isUnderConstruction());
Assert.assertNull("should not have a lease", cluster.getNamesystem()
.getLeaseManager().getLeaseByPath(file.toString()));
Assert.assertNull("should not have a lease", lm.getLease(inode));
// make sure the quota usage is unchanged
final long newSpaceUsed = dirNode.getDirectoryWithQuotaFeature()
.getSpaceConsumed().getStorageSpace();
@ -296,11 +297,11 @@ public class TestDiskspaceQuotaUpdate {
}
// check that the file exists, isn't UC, and has no dangling lease
LeaseManager lm = cluster.getNamesystem().getLeaseManager();
INodeFile inode = fsdir.getINode(file.toString()).asFile();
Assert.assertNotNull(inode);
Assert.assertFalse("should not be UC", inode.isUnderConstruction());
Assert.assertNull("should not have a lease", cluster.getNamesystem()
.getLeaseManager().getLeaseByPath(file.toString()));
Assert.assertNull("should not have a lease", lm.getLease(inode));
// make sure the quota usage is unchanged
final long newSpaceUsed = dirNode.getDirectoryWithQuotaFeature()
.getSpaceConsumed().getStorageSpace();

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSImage.java
View File

@ -109,7 +109,7 @@ public class TestFSImage {
assertEquals(1, blks.length);
assertEquals(BlockUCState.UNDER_CONSTRUCTION, blks[0].getBlockUCState());
// check lease manager
Lease lease = fsn.leaseManager.getLeaseByPath(file2.toString());
Lease lease = fsn.leaseManager.getLease(file2Node);
Assert.assertNotNull(lease);
} finally {
if (cluster != null) {

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSNamesystem.java
View File

@ -76,7 +76,7 @@ public class TestFSNamesystem {
DFSTestUtil.formatNameNode(conf);
FSNamesystem fsn = FSNamesystem.loadFromDisk(conf);
LeaseManager leaseMan = fsn.getLeaseManager();
leaseMan.addLease("client1", "importantFile");
leaseMan.addLease("client1", fsn.getFSDirectory().allocateNewInodeId());
assertEquals(1, leaseMan.countLease());
fsn.clear();
leaseMan = fsn.getLeaseManager();

3
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestGetBlockLocations.java
View File

@ -70,7 +70,8 @@ public class TestGetBlockLocations {
public Void answer(InvocationOnMock invocation) throws Throwable {
INodesInPath iip = fsd.getINodesInPath(FILE_PATH, true);
FSDirDeleteOp.delete(fsd, iip, new INode.BlocksMapUpdateInfo(),
new ArrayList<INode>(), now());
new ArrayList<INode>(), new ArrayList<Long>(),
now());
invocation.callRealMethod();
return null;
}

54
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestLeaseManager.java
View File

@ -21,39 +21,31 @@ import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import com.google.common.collect.Lists;
import org.junit.Test;
import org.mockito.Mockito;
import java.util.ArrayList;
import static org.mockito.Mockito.*;
public class TestLeaseManager {
final Configuration conf = new HdfsConfiguration();
@Test
public void testRemoveLeaseWithPrefixPath() throws Exception {
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
cluster.waitActive();
public void testRemoveLeases() throws Exception {
FSNamesystem fsn = mock(FSNamesystem.class);
LeaseManager lm = new LeaseManager(fsn);
ArrayList<Long> ids = Lists.newArrayList(INodeId.ROOT_INODE_ID + 1,
INodeId.ROOT_INODE_ID + 2, INodeId.ROOT_INODE_ID + 3,
INodeId.ROOT_INODE_ID + 4);
for (long id : ids) {
lm.addLease("foo", id);
}
LeaseManager lm = NameNodeAdapter.getLeaseManager(cluster.getNamesystem());
lm.addLease("holder1", "/a/b");
lm.addLease("holder2", "/a/c");
assertNotNull(lm.getLeaseByPath("/a/b"));
assertNotNull(lm.getLeaseByPath("/a/c"));
lm.removeLeaseWithPrefixPath("/a");
assertNull(lm.getLeaseByPath("/a/b"));
assertNull(lm.getLeaseByPath("/a/c"));
lm.addLease("holder1", "/a/b");
lm.addLease("holder2", "/a/c");
lm.removeLeaseWithPrefixPath("/a/");
assertNull(lm.getLeaseByPath("/a/b"));
assertNull(lm.getLeaseByPath("/a/c"));
assertEquals(4, lm.getINodeIdWithLeases().size());
synchronized (lm) {
lm.removeLeases(ids);
}
assertEquals(0, lm.getINodeIdWithLeases().size());
}
/** Check that even if LeaseManager.checkLease is not able to relinquish
@ -70,13 +62,13 @@ public class TestLeaseManager {
LeaseManager lm = new LeaseManager(fsn);
//Make sure the leases we are going to add exceed the hard limit
lm.setLeasePeriod(0,0);
lm.setLeasePeriod(0, 0);
//Add some leases to the LeaseManager
lm.addLease("holder1", "src1");
lm.addLease("holder2", "src2");
lm.addLease("holder3", "src3");
assertEquals(lm.getNumSortedLeases(), 3);
lm.addLease("holder1", INodeId.ROOT_INODE_ID + 1);
lm.addLease("holder2", INodeId.ROOT_INODE_ID + 2);
lm.addLease("holder3", INodeId.ROOT_INODE_ID + 3);
assertEquals(lm.countLease(), 3);
//Initiate a call to checkLease. This should exit within the test timeout
lm.checkLeases();

3
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestSaveNamespace.java
View File

@ -615,7 +615,8 @@ public class TestSaveNamespace {
cluster.waitActive();
DistributedFileSystem fs = cluster.getFileSystem();
try {
cluster.getNamesystem().leaseManager.addLease("me", "/non-existent");
cluster.getNamesystem().leaseManager.addLease("me",
INodeId.ROOT_INODE_ID + 1);
fs.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
cluster.getNameNodeRpc().saveNamespace(0, 0);
fs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE);

29
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestINodeFileUnderConstructionWithSnapshot.java
View File

@ -40,11 +40,13 @@ import org.apache.hadoop.hdfs.client.HdfsDataOutputStream;
import org.apache.hadoop.hdfs.client.HdfsDataOutputStream.SyncFlag;
import org.apache.hadoop.hdfs.protocol.LocatedBlock;
import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants;
import org.apache.hadoop.hdfs.server.namenode.FSDirectory;
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
import org.apache.hadoop.hdfs.server.namenode.INode;
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory;
import org.apache.hadoop.hdfs.server.namenode.INodeFile;
import org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter;
import org.apache.hadoop.hdfs.server.namenode.snapshot.DirectoryWithSnapshotFeature.DirectoryDiff;
import org.apache.log4j.Level;
import org.junit.After;
@ -279,4 +281,31 @@ public class TestINodeFileUnderConstructionWithSnapshot {
assertEquals(BLOCKSIZE - 1, lastBlock.getBlockSize());
out.close();
}
@Test
public void testLease() throws Exception {
try {
NameNodeAdapter.setLeasePeriod(fsn, 100, 200);
final Path foo = new Path(dir, "foo");
final Path bar = new Path(foo, "bar");
DFSTestUtil.createFile(hdfs, bar, BLOCKSIZE, REPLICATION, 0);
HdfsDataOutputStream out = appendFileWithoutClosing(bar, 100);
out.hsync(EnumSet.of(SyncFlag.UPDATE_LENGTH));
SnapshotTestHelper.createSnapshot(hdfs, dir, "s0");
hdfs.delete(foo, true);
Thread.sleep(1000);
try {
fsn.writeLock();
NameNodeAdapter.getLeaseManager(fsn).runLeaseChecks();
} finally {
fsn.writeUnlock();
}
} finally {
NameNodeAdapter.setLeasePeriod(
fsn,
HdfsServerConstants.LEASE_SOFTLIMIT_PERIOD,
HdfsServerConstants.LEASE_HARDLIMIT_PERIOD);
}
}
}