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HDFS-4760. Update inodeMap after node replacement. Contributed by Jing Zhao 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-2802@1477827 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Tsz-wo Sze 2013-04-30 21:05:20 +00:00
parent e097f8404b
commit 3a3e0f5731
22 changed files with 411 additions and 258 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-2802.txt
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@ -324,3 +324,5 @@ Branch-2802 Snapshot (Unreleased)
HDFS-4773. Fix bugs in quota usage computation and OfflineImageViewer.
(Jing Zhao via szetszwo)
HDFS-4760. Update inodeMap after node replacement. (Jing Zhao via szetszwo)

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
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@ -3016,12 +3016,6 @@ assert storedBlock.findDatanode(dn) < 0 : "Block " + block
return blocksMap.addBlockCollection(block, bc);
}
public void addBlockCollection(BlockCollection bc) {
for(BlockInfo block : bc.getBlocks()) {
addBlockCollection(block, bc);
}
}
public BlockCollection getBlockCollection(Block b) {
return blocksMap.getBlockCollection(b);
}

195
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
View File

@ -61,10 +61,8 @@ import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoUnderConstruction;
import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor;
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.BlockUCState;
import org.apache.hadoop.hdfs.server.namenode.Content.CountsMap;
import org.apache.hadoop.hdfs.server.namenode.INode.BlocksMapUpdateInfo;
import org.apache.hadoop.hdfs.server.namenode.INodeReference.WithCount;
import org.apache.hadoop.hdfs.server.namenode.Quota.Counts;
import org.apache.hadoop.hdfs.server.namenode.snapshot.INodeDirectorySnapshottable;
import org.apache.hadoop.hdfs.server.namenode.snapshot.INodeDirectoryWithSnapshot;
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot;
@ -73,8 +71,6 @@ import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotAccessControlExce
import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotException;
import org.apache.hadoop.hdfs.util.ByteArray;
import org.apache.hadoop.hdfs.util.ReadOnlyList;
import org.apache.hadoop.hdfs.util.GSet;
import org.apache.hadoop.hdfs.util.LightWeightGSet;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
@ -116,7 +112,7 @@ public class FSDirectory implements Closeable {
private final int maxComponentLength;
private final int maxDirItems;
private final int lsLimit; // max list limit
private GSet<INode, INodeWithAdditionalFields> inodeMap; // Synchronized by dirLock
private final INodeMap inodeMap; // Synchronized by dirLock
// lock to protect the directory and BlockMap
private ReentrantReadWriteLock dirLock;
@ -157,7 +153,7 @@ public class FSDirectory implements Closeable {
this.dirLock = new ReentrantReadWriteLock(true); // fair
this.cond = dirLock.writeLock().newCondition();
rootDir = createRoot(ns);
inodeMap = initInodeMap(rootDir);
inodeMap = INodeMap.newInstance(rootDir);
this.fsImage = fsImage;
int configuredLimit = conf.getInt(
DFSConfigKeys.DFS_LIST_LIMIT, DFSConfigKeys.DFS_LIST_LIMIT_DEFAULT);
@ -181,16 +177,6 @@ public class FSDirectory implements Closeable {
namesystem = ns;
}
private static GSet<INode, INodeWithAdditionalFields> initInodeMap(
INodeDirectory rootDir) {
// Compute the map capacity by allocating 1% of total memory
int capacity = LightWeightGSet.computeCapacity(1, "INodeMap");
GSet<INode, INodeWithAdditionalFields> map
= new LightWeightGSet<INode, INodeWithAdditionalFields>(capacity);
map.put(rootDir);
return map;
}
private FSNamesystem getFSNamesystem() {
return namesystem;
}
@ -608,7 +594,8 @@ public class FSDirectory implements Closeable {
// snapshot is taken on the dst tree, changes will be recorded in the latest
// snapshot of the src tree.
if (isSrcInSnapshot) {
srcChild = srcChild.recordModification(srcIIP.getLatestSnapshot());
srcChild = srcChild.recordModification(srcIIP.getLatestSnapshot(),
inodeMap);
srcIIP.setLastINode(srcChild);
}
@ -618,8 +605,9 @@ public class FSDirectory implements Closeable {
int srcRefDstSnapshot = srcChildIsReference ? srcChild.asReference()
.getDstSnapshotId() : Snapshot.INVALID_ID;
if (isSrcInSnapshot) {
final INodeReference.WithName withName = srcIIP.getINode(-2).asDirectory()
.replaceChild4ReferenceWithName(srcChild, srcIIP.getLatestSnapshot());
final INodeReference.WithName withName =
srcIIP.getINode(-2).asDirectory().replaceChild4ReferenceWithName(
srcChild, srcIIP.getLatestSnapshot());
withCount = (INodeReference.WithCount) withName.getReferredINode();
srcChild = withName;
srcIIP.setLastINode(srcChild);
@ -676,9 +664,11 @@ public class FSDirectory implements Closeable {
}
// update modification time of dst and the parent of src
final INode srcParent = srcIIP.getINode(-2);
srcParent.updateModificationTime(timestamp, srcIIP.getLatestSnapshot());
srcParent.updateModificationTime(timestamp, srcIIP.getLatestSnapshot(),
inodeMap);
dstParent = dstIIP.getINode(-2); // refresh dstParent
dstParent.updateModificationTime(timestamp, dstIIP.getLatestSnapshot());
dstParent.updateModificationTime(timestamp, dstIIP.getLatestSnapshot(),
inodeMap);
// update moved leases with new filename
getFSNamesystem().unprotectedChangeLease(src, dst);
@ -859,7 +849,8 @@ public class FSDirectory implements Closeable {
// snapshot is taken on the dst tree, changes will be recorded in the latest
// snapshot of the src tree.
if (isSrcInSnapshot) {
srcChild = srcChild.recordModification(srcIIP.getLatestSnapshot());
srcChild = srcChild.recordModification(srcIIP.getLatestSnapshot(),
inodeMap);
srcIIP.setLastINode(srcChild);
}
@ -937,9 +928,11 @@ public class FSDirectory implements Closeable {
}
final INode srcParent = srcIIP.getINode(-2);
srcParent.updateModificationTime(timestamp, srcIIP.getLatestSnapshot());
srcParent.updateModificationTime(timestamp, srcIIP.getLatestSnapshot(),
inodeMap);
dstParent = dstIIP.getINode(-2);
dstParent.updateModificationTime(timestamp, dstIIP.getLatestSnapshot());
dstParent.updateModificationTime(timestamp, dstIIP.getLatestSnapshot(),
inodeMap);
// update moved lease with new filename
getFSNamesystem().unprotectedChangeLease(src, dst);
@ -1071,7 +1064,8 @@ public class FSDirectory implements Closeable {
updateCount(iip, 0, dsDelta, true);
}
file = file.setFileReplication(replication, iip.getLatestSnapshot());
file = file.setFileReplication(replication, iip.getLatestSnapshot(),
inodeMap);
final short newBR = file.getBlockReplication();
// check newBR < oldBR case.
@ -1137,7 +1131,8 @@ public class FSDirectory implements Closeable {
if (inode == null) {
throw new FileNotFoundException("File does not exist: " + src);
}
inode.setPermission(permissions, inodesInPath.getLatestSnapshot());
inode.setPermission(permissions, inodesInPath.getLatestSnapshot(),
inodeMap);
}
void setOwner(String src, String username, String groupname)
@ -1162,10 +1157,11 @@ public class FSDirectory implements Closeable {
throw new FileNotFoundException("File does not exist: " + src);
}
if (username != null) {
inode = inode.setUser(username, inodesInPath.getLatestSnapshot());
inode = inode.setUser(username, inodesInPath.getLatestSnapshot(),
inodeMap);
}
if (groupname != null) {
inode.setGroup(groupname, inodesInPath.getLatestSnapshot());
inode.setGroup(groupname, inodesInPath.getLatestSnapshot(), inodeMap);
}
}
@ -1237,12 +1233,15 @@ public class FSDirectory implements Closeable {
if(nodeToRemove == null) continue;
nodeToRemove.setBlocks(null);
trgParent.removeChild(nodeToRemove, trgLatestSnapshot);
trgParent.removeChild(nodeToRemove, trgLatestSnapshot, null);
count++;
}
trgInode.setModificationTime(timestamp, trgLatestSnapshot);
trgParent.updateModificationTime(timestamp, trgLatestSnapshot);
// update inodeMap
removeFromInodeMap(Arrays.asList(allSrcInodes));
trgInode.setModificationTime(timestamp, trgLatestSnapshot, inodeMap);
trgParent.updateModificationTime(timestamp, trgLatestSnapshot, inodeMap);
// update quota on the parent directory ('count' files removed, 0 space)
unprotectedUpdateCount(trgIIP, trgINodes.length-1, -count, 0);
}
@ -1384,7 +1383,7 @@ public class FSDirectory implements Closeable {
// record modification
final Snapshot latestSnapshot = iip.getLatestSnapshot();
targetNode = targetNode.recordModification(latestSnapshot);
targetNode = targetNode.recordModification(latestSnapshot, inodeMap);
iip.setLastINode(targetNode);
// Remove the node from the namespace
@ -1395,7 +1394,7 @@ public class FSDirectory implements Closeable {
// set the parent's modification time
final INodeDirectory parent = targetNode.getParent();
parent.updateModificationTime(mtime, latestSnapshot);
parent.updateModificationTime(mtime, latestSnapshot, inodeMap);
if (removed == 0) {
return 0;
}
@ -1466,8 +1465,7 @@ public class FSDirectory implements Closeable {
final INodeFile newnode) {
Preconditions.checkState(hasWriteLock());
oldnode.getParent().replaceChild(oldnode, newnode);
addToInodeMapUnprotected(newnode);
oldnode.getParent().replaceChild(oldnode, newnode, inodeMap);
oldnode.clear();
/* Currently oldnode and newnode are assumed to contain the same
@ -1984,15 +1982,6 @@ public class FSDirectory implements Closeable {
}
}
private INode getFromINodeMap(INode inode) {
readLock();
try {
return inodeMap.get(inode);
} finally {
readUnlock();
}
}
/**
* Add the given child to the namespace.
* @param src The full path name of the child node.
@ -2194,14 +2183,14 @@ public class FSDirectory implements Closeable {
updateCount(iip, pos,
counts.get(Quota.NAMESPACE), counts.get(Quota.DISKSPACE), checkQuota);
final INodeDirectory parent = inodes[pos-1].asDirectory();
final boolean added = parent.addChild(child, true, iip.getLatestSnapshot());
final boolean added = parent.addChild(child, true, iip.getLatestSnapshot(),
inodeMap);
if (!added) {
updateCountNoQuotaCheck(iip, pos,
-counts.get(Quota.NAMESPACE), -counts.get(Quota.DISKSPACE));
} else {
// update parent node
iip.setINode(pos - 1, child.getParent());
addToInodeMapUnprotected(child);
addToInodeMap(child);
}
return added;
}
@ -2228,13 +2217,12 @@ public class FSDirectory implements Closeable {
final Snapshot latestSnapshot = iip.getLatestSnapshot();
final INode last = iip.getLastINode();
final INodeDirectory parent = iip.getINode(-2).asDirectory();
if (!parent.removeChild(last, latestSnapshot)) {
if (!parent.removeChild(last, latestSnapshot, inodeMap)) {
return -1;
}
if (parent != last.getParent()) {
// parent is changed
addToInodeMapUnprotected(last.getParent());
iip.setINode(-2, last.getParent());
INodeDirectory newParent = last.getParent();
if (parent != newParent) {
iip.setINode(-2, newParent);
}
if (!last.isInLatestSnapshot(latestSnapshot)) {
@ -2277,22 +2265,51 @@ public class FSDirectory implements Closeable {
}
}
/** This method is always called with writeLock held */
final void addToInodeMapUnprotected(INode inode) {
public INodeMap getINodeMap() {
return inodeMap;
}
/**
* This method is always called with writeLock of FSDirectory held.
*/
public final void addToInodeMap(INode inode) {
if (inode instanceof INodeWithAdditionalFields) {
inodeMap.put((INodeWithAdditionalFields)inode);
}
}
/* This method is always called with writeLock held */
final void removeFromInodeMap(List<INode> inodes) {
/**
* This method is always called with writeLock of FSDirectory held.
*/
public final void removeFromInodeMap(List<? extends INode> inodes) {
if (inodes != null) {
for (INode inode : inodes) {
inodeMap.remove(inode);
if (inode != null && inode instanceof INodeWithAdditionalFields) {
inodeMap.remove(inode);
}
}
}
}
/**
* Get the inode from inodeMap based on its inode id.
* @param id The given id
* @return The inode associated with the given id
*/
public INode getInode(long id) {
readLock();
try {
return inodeMap.get(id);
} finally {
readUnlock();
}
}
@VisibleForTesting
int getInodeMapSize() {
return inodeMap.size();
}
/**
* See {@link ClientProtocol#setQuota(String, long, long)} for the contract.
* Sets quota for for a directory.
@ -2354,18 +2371,12 @@ public class FSDirectory implements Closeable {
if (!(quotaNode instanceof INodeDirectoryWithSnapshot)) {
// will not come here for root because root is snapshottable and
// root's nsQuota is always set
INodeDirectory newNode = quotaNode.replaceSelf4INodeDirectory();
// update the inodeMap
inodeMap.put(newNode);
return newNode;
return quotaNode.replaceSelf4INodeDirectory(inodeMap);
}
}
} else {
// a non-quota directory; so replace it with a directory with quota
INodeDirectory newNode = dirNode.replaceSelf4Quota(latest, nsQuota, dsQuota);
// update the inodeMap
inodeMap.put(newNode);
return newNode;
return dirNode.replaceSelf4Quota(latest, nsQuota, dsQuota, inodeMap);
}
return (oldNsQuota != nsQuota || oldDsQuota != dsQuota) ? dirNode : null;
}
@ -2431,7 +2442,7 @@ public class FSDirectory implements Closeable {
assert hasWriteLock();
boolean status = false;
if (mtime != -1) {
inode = inode.setModificationTime(mtime, latest);
inode = inode.setModificationTime(mtime, latest, inodeMap);
status = true;
}
if (atime != -1) {
@ -2442,7 +2453,7 @@ public class FSDirectory implements Closeable {
if (atime <= inodeTime + getFSNamesystem().getAccessTimePrecision() && !force) {
status = false;
} else {
inode.setAccessTime(atime, latest);
inode.setAccessTime(atime, latest, inodeMap);
status = true;
}
}
@ -2458,7 +2469,7 @@ public class FSDirectory implements Closeable {
setReady(false);
rootDir = createRoot(getFSNamesystem());
inodeMap.clear();
addToInodeMapUnprotected(rootDir);
addToInodeMap(rootDir);
nameCache.reset();
} finally {
writeUnlock();
@ -2622,49 +2633,6 @@ public class FSDirectory implements Closeable {
void shutdown() {
nameCache.reset();
inodeMap.clear();
inodeMap = null;
}
INode getInode(long id) {
INode inode = new INodeWithAdditionalFields(id, null, new PermissionStatus(
"", "", new FsPermission((short) 0)), 0, 0) {
@Override
INode recordModification(Snapshot latest) throws QuotaExceededException {
return null;
}
@Override
public void destroyAndCollectBlocks(BlocksMapUpdateInfo collectedBlocks,
List<INode> removedINodes) {
// Nothing to do
}
@Override
public Counts computeQuotaUsage(Counts counts, boolean useCache,
int lastSnapshotId) {
return null;
}
@Override
public Content.Counts computeContentSummary(Content.Counts counts) {
return null;
}
@Override
public CountsMap computeContentSummary(CountsMap countsMap) {
return null;
}
@Override
public Counts cleanSubtree(Snapshot snapshot, Snapshot prior,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes)
throws QuotaExceededException {
return null;
}
};
return getFromINodeMap(inode);
}
/**
@ -2732,11 +2700,6 @@ public class FSDirectory implements Closeable {
return path.toString();
}
@VisibleForTesting
int getInodeMapSize() {
return inodeMap.size();
}
/** Check if a given inode name is reserved */
public static boolean isReservedName(INode inode) {
return CHECK_RESERVED_FILE_NAMES

8
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
View File

@ -315,8 +315,8 @@ public class FSEditLogLoader {
// update the block list.
// Update the salient file attributes.
newFile.setAccessTime(addCloseOp.atime, null);
newFile.setModificationTime(addCloseOp.mtime, null);
newFile.setAccessTime(addCloseOp.atime, null, fsDir.getINodeMap());
newFile.setModificationTime(addCloseOp.mtime, null, fsDir.getINodeMap());
updateBlocks(fsDir, addCloseOp, newFile);
break;
}
@ -334,8 +334,8 @@ public class FSEditLogLoader {
final INodeFile oldFile = INodeFile.valueOf(iip.getINode(0), addCloseOp.path);
// Update the salient file attributes.
oldFile.setAccessTime(addCloseOp.atime, null);
oldFile.setModificationTime(addCloseOp.mtime, null);
oldFile.setAccessTime(addCloseOp.atime, null, fsDir.getINodeMap());
oldFile.setModificationTime(addCloseOp.mtime, null, fsDir.getINodeMap());
updateBlocks(fsDir, addCloseOp, oldFile);
// Now close the file

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

@ -560,7 +560,7 @@ public class FSImageFormat {
final byte[] localName = FSImageSerialization.readLocalName(in);
INode inode = loadINode(localName, isSnapshotINode, in);
if (LayoutVersion.supports(Feature.ADD_INODE_ID, getLayoutVersion())) {
namesystem.dir.addToInodeMapUnprotected(inode);
namesystem.dir.addToInodeMap(inode);
}
return inode;
}

19
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -1990,7 +1990,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
LocatedBlock prepareFileForWrite(String src, INodeFile file,
String leaseHolder, String clientMachine, DatanodeDescriptor clientNode,
boolean writeToEditLog, Snapshot latestSnapshot) throws IOException {
file = file.recordModification(latestSnapshot);
file = file.recordModification(latestSnapshot, dir.getINodeMap());
final INodeFileUnderConstruction cons = file.toUnderConstruction(
leaseHolder, clientMachine, clientNode);
@ -3400,7 +3400,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
assert hasWriteLock();
leaseManager.removeLease(pendingFile.getClientName(), src);
pendingFile = pendingFile.recordModification(latestSnapshot);
pendingFile = pendingFile.recordModification(latestSnapshot,
dir.getINodeMap());
// The file is no longer pending.
// Create permanent INode, update blocks
@ -5823,7 +5824,12 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
}
checkSuperuserPrivilege();
snapshotManager.setSnapshottable(path);
dir.writeLock();
try {
snapshotManager.setSnapshottable(path);
} finally {
dir.writeUnlock();
}
getEditLog().logAllowSnapshot(path);
} finally {
writeUnlock();
@ -5846,7 +5852,12 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
}
checkSuperuserPrivilege();
snapshotManager.resetSnapshottable(path);
dir.writeLock();
try {
snapshotManager.resetSnapshottable(path);
} finally {
dir.writeUnlock();
}
getEditLog().logDisallowSnapshot(path);
} finally {
writeUnlock();

36
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
View File

@ -96,9 +96,9 @@ public abstract class INode implements Diff.Element<byte[]> {
abstract void setUser(String user);
/** Set user */
final INode setUser(String user, Snapshot latest)
final INode setUser(String user, Snapshot latest, INodeMap inodeMap)
throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest);
final INode nodeToUpdate = recordModification(latest, inodeMap);
nodeToUpdate.setUser(user);
return nodeToUpdate;
}
@ -119,9 +119,9 @@ public abstract class INode implements Diff.Element<byte[]> {
abstract void setGroup(String group);
/** Set group */
final INode setGroup(String group, Snapshot latest)
final INode setGroup(String group, Snapshot latest, INodeMap inodeMap)
throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest);
final INode nodeToUpdate = recordModification(latest, inodeMap);
nodeToUpdate.setGroup(group);
return nodeToUpdate;
}
@ -143,9 +143,9 @@ public abstract class INode implements Diff.Element<byte[]> {
abstract void setPermission(FsPermission permission);
/** Set the {@link FsPermission} of this {@link INode} */
INode setPermission(FsPermission permission, Snapshot latest)
throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest);
INode setPermission(FsPermission permission, Snapshot latest,
INodeMap inodeMap) throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest, inodeMap);
nodeToUpdate.setPermission(permission);
return nodeToUpdate;
}
@ -219,12 +219,14 @@ public abstract class INode implements Diff.Element<byte[]> {
*
* @param latest the latest snapshot that has been taken.
* Note that it is null if no snapshots have been taken.
* @param inodeMap while recording modification, the inode or its parent may
* get replaced, and the inodeMap needs to be updated.
* @return The current inode, which usually is the same object of this inode.
* However, in some cases, this inode may be replaced with a new inode
* for maintaining snapshots. The current inode is then the new inode.
*/
abstract INode recordModification(final Snapshot latest)
throws QuotaExceededException;
abstract INode recordModification(final Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException;
/** Check whether it's a reference. */
public boolean isReference() {
@ -564,16 +566,16 @@ public abstract class INode implements Diff.Element<byte[]> {
}
/** Update modification time if it is larger than the current value. */
public abstract INode updateModificationTime(long mtime, Snapshot latest)
throws QuotaExceededException;
public abstract INode updateModificationTime(long mtime, Snapshot latest,
INodeMap inodeMap) throws QuotaExceededException;
/** Set the last modification time of inode. */
public abstract void setModificationTime(long modificationTime);
/** Set the last modification time of inode. */
public final INode setModificationTime(long modificationTime, Snapshot latest)
throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest);
public final INode setModificationTime(long modificationTime,
Snapshot latest, INodeMap inodeMap) throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest, inodeMap);
nodeToUpdate.setModificationTime(modificationTime);
return nodeToUpdate;
}
@ -599,9 +601,9 @@ public abstract class INode implements Diff.Element<byte[]> {
/**
* Set last access time of inode.
*/
public final INode setAccessTime(long accessTime, Snapshot latest)
throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest);
public final INode setAccessTime(long accessTime, Snapshot latest,
INodeMap inodeMap) throws QuotaExceededException {
final INode nodeToUpdate = recordModification(latest, inodeMap);
nodeToUpdate.setAccessTime(accessTime);
return nodeToUpdate;
}

91
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
View File

@ -113,11 +113,11 @@ public class INodeDirectory extends INodeWithAdditionalFields {
* @param child the child inode to be removed
* @param latest See {@link INode#recordModification(Snapshot)}.
*/
public boolean removeChild(INode child, Snapshot latest)
throws QuotaExceededException {
public boolean removeChild(INode child, Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
if (isInLatestSnapshot(latest)) {
return replaceSelf4INodeDirectoryWithSnapshot()
.removeChild(child, latest);
return replaceSelf4INodeDirectoryWithSnapshot(inodeMap)
.removeChild(child, latest, inodeMap);
}
return removeChild(child);
@ -147,59 +147,66 @@ public class INodeDirectory extends INodeWithAdditionalFields {
* {@link INodeDirectoryWithSnapshot} depending on the latest snapshot.
*/
INodeDirectoryWithQuota replaceSelf4Quota(final Snapshot latest,
final long nsQuota, final long dsQuota) throws QuotaExceededException {
final long nsQuota, final long dsQuota, final INodeMap inodeMap)
throws QuotaExceededException {
Preconditions.checkState(!(this instanceof INodeDirectoryWithQuota),
"this is already an INodeDirectoryWithQuota, this=%s", this);
if (!this.isInLatestSnapshot(latest)) {
final INodeDirectoryWithQuota q = new INodeDirectoryWithQuota(
this, true, nsQuota, dsQuota);
replaceSelf(q);
replaceSelf(q, inodeMap);
return q;
} else {
final INodeDirectoryWithSnapshot s = new INodeDirectoryWithSnapshot(this);
s.setQuota(nsQuota, dsQuota);
return replaceSelf(s).saveSelf2Snapshot(latest, this);
return replaceSelf(s, inodeMap).saveSelf2Snapshot(latest, this);
}
}
/** Replace itself with an {@link INodeDirectorySnapshottable}. */
public INodeDirectorySnapshottable replaceSelf4INodeDirectorySnapshottable(
Snapshot latest) throws QuotaExceededException {
Snapshot latest, final INodeMap inodeMap) throws QuotaExceededException {
Preconditions.checkState(!(this instanceof INodeDirectorySnapshottable),
"this is already an INodeDirectorySnapshottable, this=%s", this);
final INodeDirectorySnapshottable s = new INodeDirectorySnapshottable(this);
replaceSelf(s).saveSelf2Snapshot(latest, this);
replaceSelf(s, inodeMap).saveSelf2Snapshot(latest, this);
return s;
}
/** Replace itself with an {@link INodeDirectoryWithSnapshot}. */
public INodeDirectoryWithSnapshot replaceSelf4INodeDirectoryWithSnapshot() {
return replaceSelf(new INodeDirectoryWithSnapshot(this));
public INodeDirectoryWithSnapshot replaceSelf4INodeDirectoryWithSnapshot(
final INodeMap inodeMap) {
return replaceSelf(new INodeDirectoryWithSnapshot(this), inodeMap);
}
/** Replace itself with {@link INodeDirectory}. */
public INodeDirectory replaceSelf4INodeDirectory() {
public INodeDirectory replaceSelf4INodeDirectory(final INodeMap inodeMap) {
Preconditions.checkState(getClass() != INodeDirectory.class,
"the class is already INodeDirectory, this=%s", this);
return replaceSelf(new INodeDirectory(this, true));
return replaceSelf(new INodeDirectory(this, true), inodeMap);
}
/** Replace itself with the given directory. */
private final <N extends INodeDirectory> N replaceSelf(final N newDir) {
private final <N extends INodeDirectory> N replaceSelf(final N newDir,
final INodeMap inodeMap) {
final INodeReference ref = getParentReference();
if (ref != null) {
ref.setReferredINode(newDir);
if (inodeMap != null) {
inodeMap.put(newDir);
}
} else {
final INodeDirectory parent = getParent();
Preconditions.checkArgument(parent != null, "parent is null, this=%s", this);
parent.replaceChild(this, newDir);
parent.replaceChild(this, newDir, inodeMap);
}
clear();
return newDir;
}
/** Replace the given child with a new child. */
public void replaceChild(INode oldChild, final INode newChild) {
public void replaceChild(INode oldChild, final INode newChild,
final INodeMap inodeMap) {
Preconditions.checkNotNull(children);
final int i = searchChildren(newChild.getLocalNameBytes());
Preconditions.checkState(i >= 0);
@ -220,9 +227,12 @@ public class INodeDirectory extends INodeWithAdditionalFields {
(WithCount) oldChild.asReference().getReferredINode();
withCount.removeReference(oldChild.asReference());
}
// do the replacement
children.set(i, newChild);
}
// update the inodeMap
if (inodeMap != null) {
inodeMap.put(newChild);
}
}
INodeReference.WithName replaceChild4ReferenceWithName(INode oldChild,
@ -241,43 +251,47 @@ public class INodeDirectory extends INodeWithAdditionalFields {
}
final INodeReference.WithName ref = new INodeReference.WithName(this,
withCount, oldChild.getLocalNameBytes(), latest.getId());
replaceChild(oldChild, ref);
replaceChild(oldChild, ref, null);
return ref;
}
private void replaceChildFile(final INodeFile oldChild, final INodeFile newChild) {
replaceChild(oldChild, newChild);
private void replaceChildFile(final INodeFile oldChild,
final INodeFile newChild, final INodeMap inodeMap) {
replaceChild(oldChild, newChild, inodeMap);
oldChild.clear();
newChild.updateBlockCollection();
}
/** Replace a child {@link INodeFile} with an {@link INodeFileWithSnapshot}. */
INodeFileWithSnapshot replaceChild4INodeFileWithSnapshot(
final INodeFile child) {
final INodeFile child, final INodeMap inodeMap) {
Preconditions.checkArgument(!(child instanceof INodeFileWithSnapshot),
"Child file is already an INodeFileWithSnapshot, child=" + child);
final INodeFileWithSnapshot newChild = new INodeFileWithSnapshot(child);
replaceChildFile(child, newChild);
replaceChildFile(child, newChild, inodeMap);
return newChild;
}
/** Replace a child {@link INodeFile} with an {@link INodeFileUnderConstructionWithSnapshot}. */
INodeFileUnderConstructionWithSnapshot replaceChild4INodeFileUcWithSnapshot(
final INodeFileUnderConstruction child) {
final INodeFileUnderConstruction child, final INodeMap inodeMap) {
Preconditions.checkArgument(!(child instanceof INodeFileUnderConstructionWithSnapshot),
"Child file is already an INodeFileUnderConstructionWithSnapshot, child=" + child);
final INodeFileUnderConstructionWithSnapshot newChild
= new INodeFileUnderConstructionWithSnapshot(child, null);
replaceChildFile(child, newChild);
replaceChildFile(child, newChild, inodeMap);
return newChild;
}
@Override
public INodeDirectory recordModification(Snapshot latest)
throws QuotaExceededException {
return isInLatestSnapshot(latest)?
replaceSelf4INodeDirectoryWithSnapshot().recordModification(latest)
: this;
public INodeDirectory recordModification(Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
if (isInLatestSnapshot(latest)) {
return replaceSelf4INodeDirectoryWithSnapshot(inodeMap)
.recordModification(latest, inodeMap);
} else {
return this;
}
}
/**
@ -286,12 +300,13 @@ public class INodeDirectory extends INodeWithAdditionalFields {
* @return the child inode, which may be replaced.
*/
public INode saveChild2Snapshot(final INode child, final Snapshot latest,
final INode snapshotCopy) throws QuotaExceededException {
final INode snapshotCopy, final INodeMap inodeMap)
throws QuotaExceededException {
if (latest == null) {
return child;
}
return replaceSelf4INodeDirectoryWithSnapshot()
.saveChild2Snapshot(child, latest, snapshotCopy);
return replaceSelf4INodeDirectoryWithSnapshot(inodeMap)
.saveChild2Snapshot(child, latest, snapshotCopy, inodeMap);
}
/**
@ -378,24 +393,28 @@ public class INodeDirectory extends INodeWithAdditionalFields {
* @param setModTime set modification time for the parent node
* not needed when replaying the addition and
* the parent already has the proper mod time
* @param inodeMap update the inodeMap if the directory node gets replaced
* @return false if the child with this name already exists;
* otherwise, return true;
*/
public boolean addChild(INode node, final boolean setModTime,
final Snapshot latest) throws QuotaExceededException {
final Snapshot latest, final INodeMap inodeMap)
throws QuotaExceededException {
final int low = searchChildren(node.getLocalNameBytes());
if (low >= 0) {
return false;
}
if (isInLatestSnapshot(latest)) {
return replaceSelf4INodeDirectoryWithSnapshot()
.addChild(node, setModTime, latest);
INodeDirectoryWithSnapshot sdir =
replaceSelf4INodeDirectoryWithSnapshot(inodeMap);
boolean added = sdir.addChild(node, setModTime, latest, inodeMap);
return added;
}
addChild(node, low);
if (setModTime) {
// update modification time of the parent directory
updateModificationTime(node.getModificationTime(), latest);
updateModificationTime(node.getModificationTime(), latest, inodeMap);
}
return true;
}

29
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java
View File

@ -36,6 +36,7 @@ import org.apache.hadoop.hdfs.server.namenode.snapshot.FileWithSnapshot;
import org.apache.hadoop.hdfs.server.namenode.snapshot.FileWithSnapshot.FileDiff;
import org.apache.hadoop.hdfs.server.namenode.snapshot.FileDiffList;
import org.apache.hadoop.hdfs.server.namenode.snapshot.FileWithSnapshot.Util;
import org.apache.hadoop.hdfs.server.namenode.snapshot.INodeFileWithSnapshot;
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot;
import com.google.common.annotations.VisibleForTesting;
@ -155,12 +156,16 @@ public class INodeFile extends INodeWithAdditionalFields implements BlockCollect
}
@Override
public INodeFile recordModification(final Snapshot latest)
throws QuotaExceededException {
return isInLatestSnapshot(latest)?
getParent().replaceChild4INodeFileWithSnapshot(this)
.recordModification(latest)
: this;
public INodeFile recordModification(final Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
if (isInLatestSnapshot(latest)) {
INodeFileWithSnapshot newFile = getParent()
.replaceChild4INodeFileWithSnapshot(this, inodeMap)
.recordModification(latest, inodeMap);
return newFile;
} else {
return this;
}
}
/**
@ -179,9 +184,9 @@ public class INodeFile extends INodeWithAdditionalFields implements BlockCollect
* the {@link FsAction#EXECUTE} action, if any, is ignored.
*/
@Override
final INode setPermission(FsPermission permission, Snapshot latest)
throws QuotaExceededException {
return super.setPermission(permission.applyUMask(UMASK), latest);
final INode setPermission(FsPermission permission, Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
return super.setPermission(permission.applyUMask(UMASK), latest, inodeMap);
}
/** @return the replication factor of the file. */
@ -211,9 +216,9 @@ public class INodeFile extends INodeWithAdditionalFields implements BlockCollect
}
/** Set the replication factor of this file. */
public final INodeFile setFileReplication(short replication, Snapshot latest)
throws QuotaExceededException {
final INodeFile nodeToUpdate = recordModification(latest);
public final INodeFile setFileReplication(short replication, Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
final INodeFile nodeToUpdate = recordModification(latest, inodeMap);
nodeToUpdate.setFileReplication(replication);
return nodeToUpdate;
}

17
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFileUnderConstruction.java
View File

@ -30,6 +30,7 @@ import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoUnderConstruction;
import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor;
import org.apache.hadoop.hdfs.server.blockmanagement.MutableBlockCollection;
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.BlockUCState;
import org.apache.hadoop.hdfs.server.namenode.snapshot.INodeFileUnderConstructionWithSnapshot;
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot;
import com.google.common.base.Preconditions;
@ -130,12 +131,16 @@ public class INodeFileUnderConstruction extends INodeFile implements MutableBloc
}
@Override
public INodeFileUnderConstruction recordModification(final Snapshot latest)
throws QuotaExceededException {
return isInLatestSnapshot(latest)?
getParent().replaceChild4INodeFileUcWithSnapshot(this)
.recordModification(latest)
: this;
public INodeFileUnderConstruction recordModification(final Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
if (isInLatestSnapshot(latest)) {
INodeFileUnderConstructionWithSnapshot newFile = getParent()
.replaceChild4INodeFileUcWithSnapshot(this, inodeMap)
.recordModification(latest, inodeMap);
return newFile;
} else {
return this;
}
}
/** Assert all blocks are complete. */

137
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeMap.java Normal file
View File

@ -0,0 +1,137 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hdfs.server.namenode;
import java.util.List;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.fs.permission.PermissionStatus;
import org.apache.hadoop.hdfs.protocol.QuotaExceededException;
import org.apache.hadoop.hdfs.server.namenode.Content.CountsMap;
import org.apache.hadoop.hdfs.server.namenode.Quota.Counts;
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot;
import org.apache.hadoop.hdfs.util.GSet;
import org.apache.hadoop.hdfs.util.LightWeightGSet;
import com.google.common.base.Preconditions;
/**
* Storing all the {@link INode}s and maintaining the mapping between INode ID
* and INode.
*/
public class INodeMap {
static INodeMap newInstance(INodeDirectory rootDir) {
// Compute the map capacity by allocating 1% of total memory
int capacity = LightWeightGSet.computeCapacity(1, "INodeMap");
GSet<INode, INodeWithAdditionalFields> map
= new LightWeightGSet<INode, INodeWithAdditionalFields>(capacity);
map.put(rootDir);
return new INodeMap(map);
}
/** Synchronized by external lock. */
private GSet<INode, INodeWithAdditionalFields> map;
private INodeMap(GSet<INode, INodeWithAdditionalFields> map) {
Preconditions.checkArgument(map != null);
this.map = map;
}
/**
* Add an {@link INode} into the {@link INode} map. Replace the old value if
* necessary.
* @param inode The {@link INode} to be added to the map.
*/
public final void put(INode inode) {
if (inode instanceof INodeWithAdditionalFields) {
map.put((INodeWithAdditionalFields)inode);
}
}
/**
* Remove a {@link INode} from the map.
* @param inode The {@link INode} to be removed.
*/
public final void remove(INode inode) {
map.remove(inode);
}
/**
* @return The size of the map.
*/
public int size() {
return map.size();
}
/**
* Get the {@link INode} with the given id from the map.
* @param id ID of the {@link INode}.
* @return The {@link INode} in the map with the given id. Return null if no
* such {@link INode} in the map.
*/
public INode get(long id) {
INode inode = new INodeWithAdditionalFields(id, null, new PermissionStatus(
"", "", new FsPermission((short) 0)), 0, 0) {
@Override
INode recordModification(Snapshot latest, INodeMap inodeMap)
throws QuotaExceededException {
return null;
}
@Override
public void destroyAndCollectBlocks(BlocksMapUpdateInfo collectedBlocks,
List<INode> removedINodes) {
// Nothing to do
}
@Override
public Counts computeQuotaUsage(Counts counts, boolean useCache,
int lastSnapshotId) {
return null;
}
@Override
public Content.Counts computeContentSummary(Content.Counts counts) {
return null;
}
@Override
public CountsMap computeContentSummary(CountsMap countsMap) {
return null;
}
@Override
public Counts cleanSubtree(Snapshot snapshot, Snapshot prior,
BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes)
throws QuotaExceededException {
return null;
}
};
return map.get(inode);
}
/**
* Clear the {@link #map}
*/
public void clear() {
map.clear();
}
}

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

@ -197,9 +197,9 @@ public abstract class INodeReference extends INode {
}
@Override
public final INode updateModificationTime(long mtime, Snapshot latest)
throws QuotaExceededException {
return referred.updateModificationTime(mtime, latest);
public final INode updateModificationTime(long mtime, Snapshot latest,
INodeMap inodeMap) throws QuotaExceededException {
return referred.updateModificationTime(mtime, latest, inodeMap);
}
@Override
@ -218,8 +218,9 @@ public abstract class INodeReference extends INode {
}
@Override
final INode recordModification(Snapshot latest) throws QuotaExceededException {
referred.recordModification(latest);
final INode recordModification(Snapshot latest, final INodeMap inodeMap)
throws QuotaExceededException {
referred.recordModification(latest, inodeMap);
// reference is never replaced
return this;
}

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

@ -46,10 +46,13 @@ public class INodeSymlink extends INodeWithAdditionalFields {
}
@Override
INode recordModification(Snapshot latest) throws QuotaExceededException {
return isInLatestSnapshot(latest)?
getParent().saveChild2Snapshot(this, latest, new INodeSymlink(this))
: this;
INode recordModification(Snapshot latest, final INodeMap inodeMap)
throws QuotaExceededException {
if (isInLatestSnapshot(latest)) {
INodeDirectory parent = getParent();
parent.saveChild2Snapshot(this, latest, new INodeSymlink(this), inodeMap);
}
return this;
}
/** @return true unconditionally. */

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeWithAdditionalFields.java
View File

@ -221,13 +221,13 @@ public abstract class INodeWithAdditionalFields extends INode
/** Update modification time if it is larger than the current value. */
public final INode updateModificationTime(long mtime, Snapshot latest)
throws QuotaExceededException {
public final INode updateModificationTime(long mtime, Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
Preconditions.checkState(isDirectory());
if (mtime <= modificationTime) {
return this;
}
return setModificationTime(mtime, latest);
return setModificationTime(mtime, latest, inodeMap);
}
final void cloneModificationTime(INodeWithAdditionalFields that) {

5
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodesInPath.java
View File

@ -28,7 +28,6 @@ import org.apache.hadoop.hdfs.protocol.HdfsConstants;
import org.apache.hadoop.hdfs.protocol.UnresolvedPathException;
import org.apache.hadoop.hdfs.server.namenode.snapshot.INodeDirectorySnapshottable;
import org.apache.hadoop.hdfs.server.namenode.snapshot.INodeDirectoryWithSnapshot;
import org.apache.hadoop.hdfs.server.namenode.snapshot.INodeFileWithSnapshot;
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot;
import com.google.common.base.Preconditions;
@ -160,10 +159,6 @@ public class INodesInPath {
&& curNode.asDirectory() instanceof INodeDirectoryWithSnapshot) {
lastSnapshot = ((INodeDirectoryWithSnapshot) curNode
.asDirectory()).getLastSnapshot();
} else if (curNode.isFile()
&& curNode.asFile() instanceof INodeFileWithSnapshot) {
lastSnapshot = ((INodeFileWithSnapshot) curNode
.asFile()).getDiffs().getLastSnapshot();
}
existing.setSnapshot(lastSnapshot);
}

17
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/INodeDirectorySnapshottable.java
View File

@ -41,6 +41,7 @@ import org.apache.hadoop.hdfs.server.namenode.Content.CountsMap.Key;
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.INodeMap;
import org.apache.hadoop.hdfs.server.namenode.Quota;
import org.apache.hadoop.hdfs.util.Diff.ListType;
import org.apache.hadoop.hdfs.util.ReadOnlyList;
@ -274,8 +275,8 @@ public class INodeDirectorySnapshottable extends INodeDirectoryWithSnapshot {
}
/** Add a snapshot. */
Snapshot addSnapshot(int id, String name)
throws SnapshotException, QuotaExceededException {
Snapshot addSnapshot(int id, String name) throws SnapshotException,
QuotaExceededException {
//check snapshot quota
final int n = getNumSnapshots();
if (n + 1 > snapshotQuota) {
@ -296,8 +297,8 @@ public class INodeDirectorySnapshottable extends INodeDirectoryWithSnapshot {
snapshotsByNames.add(-i - 1, s);
//set modification time
updateModificationTime(Time.now(), null);
s.getRoot().setModificationTime(getModificationTime(), null);
updateModificationTime(Time.now(), null, null);
s.getRoot().setModificationTime(getModificationTime(), null, null);
return s;
}
@ -455,13 +456,15 @@ public class INodeDirectorySnapshottable extends INodeDirectoryWithSnapshot {
* Replace itself with {@link INodeDirectoryWithSnapshot} or
* {@link INodeDirectory} depending on the latest snapshot.
*/
void replaceSelf(final Snapshot latest) throws QuotaExceededException {
INodeDirectory replaceSelf(final Snapshot latest, final INodeMap inodeMap)
throws QuotaExceededException {
if (latest == null) {
Preconditions.checkState(getLastSnapshot() == null,
"latest == null but getLastSnapshot() != null, this=%s", this);
replaceSelf4INodeDirectory();
return replaceSelf4INodeDirectory(inodeMap);
} else {
replaceSelf4INodeDirectoryWithSnapshot().recordModification(latest);
return replaceSelf4INodeDirectoryWithSnapshot(inodeMap)
.recordModification(latest, null);
}
}

33
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/INodeDirectoryWithSnapshot.java
View File

@ -35,6 +35,7 @@ import org.apache.hadoop.hdfs.server.namenode.FSImageSerialization;
import org.apache.hadoop.hdfs.server.namenode.INode;
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory;
import org.apache.hadoop.hdfs.server.namenode.INodeDirectoryWithQuota;
import org.apache.hadoop.hdfs.server.namenode.INodeMap;
import org.apache.hadoop.hdfs.server.namenode.INodeReference;
import org.apache.hadoop.hdfs.server.namenode.INodeReference.WithCount;
import org.apache.hadoop.hdfs.server.namenode.Quota;
@ -634,8 +635,8 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
}
@Override
public INodeDirectoryWithSnapshot recordModification(final Snapshot latest)
throws QuotaExceededException {
public INodeDirectoryWithSnapshot recordModification(final Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
if (isInLatestSnapshot(latest) && !shouldRecordInSrcSnapshot(latest)) {
return saveSelf2Snapshot(latest, null);
}
@ -652,7 +653,8 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
@Override
public INode saveChild2Snapshot(final INode child, final Snapshot latest,
final INode snapshotCopy) throws QuotaExceededException {
final INode snapshotCopy, final INodeMap inodeMap)
throws QuotaExceededException {
Preconditions.checkArgument(!child.isDirectory(),
"child is a directory, child=%s", child);
if (latest == null) {
@ -670,15 +672,15 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
}
@Override
public boolean addChild(INode inode, boolean setModTime, Snapshot latest)
throws QuotaExceededException {
public boolean addChild(INode inode, boolean setModTime, Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
ChildrenDiff diff = null;
Integer undoInfo = null;
if (latest != null) {
diff = diffs.checkAndAddLatestSnapshotDiff(latest, this).diff;
undoInfo = diff.create(inode);
}
final boolean added = super.addChild(inode, setModTime, null);
final boolean added = super.addChild(inode, setModTime, null, inodeMap);
if (!added && undoInfo != null) {
diff.undoCreate(inode, undoInfo);
}
@ -686,8 +688,8 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
}
@Override
public boolean removeChild(INode child, Snapshot latest)
throws QuotaExceededException {
public boolean removeChild(INode child, Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
ChildrenDiff diff = null;
UndoInfo<INode> undoInfo = null;
if (latest != null) {
@ -705,8 +707,9 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
}
@Override
public void replaceChild(final INode oldChild, final INode newChild) {
super.replaceChild(oldChild, newChild);
public void replaceChild(final INode oldChild, final INode newChild,
final INodeMap inodeMap) {
super.replaceChild(oldChild, newChild, inodeMap);
diffs.replaceChild(ListType.CREATED, oldChild, newChild);
}
@ -747,7 +750,9 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
throws QuotaExceededException {
diffs.removeChild(ListType.DELETED, oldChild);
diffs.replaceChild(ListType.CREATED, oldChild, newChild);
addChild(newChild, true, null);
// pass null for inodeMap since the parent node will not get replaced when
// undoing rename
addChild(newChild, true, null, null);
}
/**
@ -759,8 +764,10 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
Snapshot latestSnapshot) throws QuotaExceededException {
boolean removeDeletedChild = diffs.removeChild(ListType.DELETED,
deletedChild);
// pass null for inodeMap since the parent node will not get replaced when
// undoing rename
final boolean added = addChild(deletedChild, true, removeDeletedChild ? null
: latestSnapshot);
: latestSnapshot, null);
// update quota usage if adding is successfully and the old child has not
// been stored in deleted list before
if (added && !removeDeletedChild) {
@ -804,7 +811,7 @@ public class INodeDirectoryWithSnapshot extends INodeDirectoryWithQuota {
throws QuotaExceededException {
Quota.Counts counts = Quota.Counts.newInstance();
if (snapshot == null) { // delete the current directory
recordModification(prior);
recordModification(prior, null);
// delete everything in created list
DirectoryDiff lastDiff = diffs.getLast();
if (lastDiff != null) {

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/INodeFileUnderConstructionWithSnapshot.java
View File

@ -25,6 +25,7 @@ import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor;
import org.apache.hadoop.hdfs.server.namenode.INode;
import org.apache.hadoop.hdfs.server.namenode.INodeFile;
import org.apache.hadoop.hdfs.server.namenode.INodeFileUnderConstruction;
import org.apache.hadoop.hdfs.server.namenode.INodeMap;
import org.apache.hadoop.hdfs.server.namenode.Quota;
/**
@ -78,7 +79,8 @@ public class INodeFileUnderConstructionWithSnapshot
@Override
public INodeFileUnderConstructionWithSnapshot recordModification(
final Snapshot latest) throws QuotaExceededException {
final Snapshot latest, final INodeMap inodeMap)
throws QuotaExceededException {
if (isInLatestSnapshot(latest) && !shouldRecordInSrcSnapshot(latest)) {
diffs.saveSelf2Snapshot(latest, this, null);
}
@ -100,7 +102,7 @@ public class INodeFileUnderConstructionWithSnapshot
final BlocksMapUpdateInfo collectedBlocks, final List<INode> removedINodes)
throws QuotaExceededException {
if (snapshot == null) { // delete the current file
recordModification(prior);
recordModification(prior, null);
isCurrentFileDeleted = true;
Util.collectBlocksAndClear(this, collectedBlocks, removedINodes);
return Quota.Counts.newInstance();

7
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/INodeFileWithSnapshot.java
View File

@ -24,6 +24,7 @@ import org.apache.hadoop.hdfs.protocol.QuotaExceededException;
import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor;
import org.apache.hadoop.hdfs.server.namenode.INode;
import org.apache.hadoop.hdfs.server.namenode.INodeFile;
import org.apache.hadoop.hdfs.server.namenode.INodeMap;
import org.apache.hadoop.hdfs.server.namenode.Quota;
/**
@ -65,8 +66,8 @@ public class INodeFileWithSnapshot extends INodeFile
}
@Override
public INodeFileWithSnapshot recordModification(final Snapshot latest)
throws QuotaExceededException {
public INodeFileWithSnapshot recordModification(final Snapshot latest,
final INodeMap inodeMap) throws QuotaExceededException {
if (isInLatestSnapshot(latest) && !shouldRecordInSrcSnapshot(latest)) {
diffs.saveSelf2Snapshot(latest, this, null);
}
@ -88,7 +89,7 @@ public class INodeFileWithSnapshot extends INodeFile
final BlocksMapUpdateInfo collectedBlocks, final List<INode> removedINodes)
throws QuotaExceededException {
if (snapshot == null) { // delete the current file
recordModification(prior);
recordModification(prior, null);
isCurrentFileDeleted = true;
Util.collectBlocksAndClear(this, collectedBlocks, removedINodes);
return Quota.Counts.newInstance();

5
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/SnapshotManager.java
View File

@ -82,7 +82,8 @@ public class SnapshotManager implements SnapshotStats {
s = (INodeDirectorySnapshottable)d;
s.setSnapshotQuota(INodeDirectorySnapshottable.SNAPSHOT_LIMIT);
} else {
s = d.replaceSelf4INodeDirectorySnapshottable(iip.getLatestSnapshot());
s = d.replaceSelf4INodeDirectorySnapshottable(iip.getLatestSnapshot(),
fsdir.getINodeMap());
}
addSnapshottable(s);
}
@ -124,7 +125,7 @@ public class SnapshotManager implements SnapshotStats {
if (s == fsdir.getRoot()) {
s.setSnapshotQuota(0);
} else {
s.replaceSelf(iip.getLatestSnapshot());
s.replaceSelf(iip.getLatestSnapshot(), fsdir.getINodeMap());
}
removeSnapshottable(s);
}

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

@ -784,7 +784,7 @@ public class TestINodeFile {
}
System.out.println("Adding component " + DFSUtil.bytes2String(component));
dir = new INodeDirectory(++id, component, permstatus, 0);
prev.addChild(dir, false, null);
prev.addChild(dir, false, null, null);
prev = dir;
}
return dir; // Last Inode in the chain

22
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestRenameWithSnapshots.java
View File

@ -52,6 +52,7 @@ 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.INodeMap;
import org.apache.hadoop.hdfs.server.namenode.INodeReference;
import org.apache.hadoop.hdfs.server.namenode.INodeReference.WithCount;
import org.apache.hadoop.hdfs.server.namenode.snapshot.FileWithSnapshot.FileDiff;
@ -1251,9 +1252,9 @@ public class TestRenameWithSnapshots {
INodeDirectory dir2 = fsdir.getINode4Write(sdir2.toString()).asDirectory();
INodeDirectory mockDir2 = spy(dir2);
doReturn(false).when(mockDir2).addChild((INode) anyObject(), anyBoolean(),
(Snapshot) anyObject());
(Snapshot) anyObject(), (INodeMap) anyObject());
INodeDirectory root = fsdir.getINode4Write("/").asDirectory();
root.replaceChild(dir2, mockDir2);
root.replaceChild(dir2, mockDir2, fsdir.getINodeMap());
final Path newfoo = new Path(sdir2, "foo");
boolean result = hdfs.rename(foo, newfoo);
@ -1319,9 +1320,9 @@ public class TestRenameWithSnapshots {
INodeDirectory dir2 = fsdir.getINode4Write(sdir2.toString()).asDirectory();
INodeDirectory mockDir2 = spy(dir2);
doReturn(false).when(mockDir2).addChild((INode) anyObject(), anyBoolean(),
(Snapshot) anyObject());
(Snapshot) anyObject(), (INodeMap) anyObject());
INodeDirectory root = fsdir.getINode4Write("/").asDirectory();
root.replaceChild(dir2, mockDir2);
root.replaceChild(dir2, mockDir2, fsdir.getINodeMap());
final Path newfoo = new Path(sdir2, "foo");
boolean result = hdfs.rename(foo, newfoo);
@ -1381,9 +1382,9 @@ public class TestRenameWithSnapshots {
INodeDirectory dir3 = fsdir.getINode4Write(sdir3.toString()).asDirectory();
INodeDirectory mockDir3 = spy(dir3);
doReturn(false).when(mockDir3).addChild((INode) anyObject(), anyBoolean(),
(Snapshot) anyObject());
(Snapshot) anyObject(), (INodeMap) anyObject());
INodeDirectory root = fsdir.getINode4Write("/").asDirectory();
root.replaceChild(dir3, mockDir3);
root.replaceChild(dir3, mockDir3, fsdir.getINodeMap());
final Path foo_dir2 = new Path(sdir2, "foo");
final Path foo_dir3 = new Path(sdir3, "foo");
@ -1483,11 +1484,12 @@ public class TestRenameWithSnapshots {
INodeDirectory mockDir3 = spy(dir3);
// fail the rename but succeed in undo
doReturn(false).when(mockDir3).addChild((INode) Mockito.isNull(),
anyBoolean(), (Snapshot) anyObject());
Mockito.when(mockDir3.addChild((INode) Mockito.isNotNull(), anyBoolean(),
(Snapshot) anyObject())).thenReturn(false).thenCallRealMethod();
anyBoolean(), (Snapshot) anyObject(), (INodeMap) anyObject());
Mockito.when(mockDir3.addChild((INode) Mockito.isNotNull(),
anyBoolean(), (Snapshot) anyObject(),
(INodeMap) anyObject())).thenReturn(false).thenCallRealMethod();
INodeDirectory root = fsdir.getINode4Write("/").asDirectory();
root.replaceChild(dir3, mockDir3);
root.replaceChild(dir3, mockDir3, fsdir.getINodeMap());
foo3Node.setParent(mockDir3);
try {