svn merge -c 1406006 from trunk for HDFS-4151. Change the methods in FSDirectory to pass INodesInPath instead of INode[] as a parameter.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-2802@1406014 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Tsz-wo Sze
parent
b3bc2fb76e
commit
34413c2000
@ -146,11 +146,14 @@ Trunk (Unreleased)
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HDFS-4110. Refine a log printed in JNStorage. (Liang Xie via suresh)
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HDFS-4124. Refactor INodeDirectory#getExistingPathINodes() to enable
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returningmore than INode array. (Jing Zhao via suresh)
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returning more than INode array. (Jing Zhao via suresh)
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HDFS-4129. Add utility methods to dump NameNode in memory tree for
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testing. (szetszwo via suresh)
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HDFS-4151. Change the methods in FSDirectory to pass INodesInPath instead
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of INode[] as a parameter. (szetszwo)
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OPTIMIZATIONS
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BUG FIXES
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@ -331,22 +331,18 @@ INodeDirectory addToParent(byte[] src, INodeDirectory parentINode,
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/**
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* Add a block to the file. Returns a reference to the added block.
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*/
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BlockInfo addBlock(String path,
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INode[] inodes,
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Block block,
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DatanodeDescriptor targets[]
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) throws QuotaExceededException {
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BlockInfo addBlock(String path, INodesInPath inodesInPath, Block block,
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DatanodeDescriptor targets[]) throws IOException {
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waitForReady();
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writeLock();
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try {
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assert inodes[inodes.length-1].isUnderConstruction() :
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"INode should correspond to a file under construction";
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INodeFileUnderConstruction fileINode =
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(INodeFileUnderConstruction)inodes[inodes.length-1];
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final INode[] inodes = inodesInPath.getINodes();
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final INodeFileUnderConstruction fileINode =
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INodeFileUnderConstruction.valueOf(inodes[inodes.length-1], path);
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// check quota limits and updated space consumed
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updateCount(inodes, inodes.length-1, 0,
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updateCount(inodesInPath, inodes.length-1, 0,
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fileINode.getPreferredBlockSize()*fileINode.getFileReplication(), true);
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// associate new last block for the file
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@ -442,8 +438,9 @@ void unprotectedRemoveBlock(String path, INodeFileUnderConstruction fileNode,
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}
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// update space consumed
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INode[] pathINodes = getExistingPathINodes(path);
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updateCount(pathINodes, pathINodes.length-1, 0,
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final INodesInPath inodesInPath = rootDir.getExistingPathINodes(path, true);
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final INode[] inodes = inodesInPath.getINodes();
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updateCount(inodesInPath, inodes.length-1, 0,
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-fileNode.getPreferredBlockSize()*fileNode.getFileReplication(), true);
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}
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@ -511,7 +508,8 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp)
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throws QuotaExceededException, UnresolvedLinkException,
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FileAlreadyExistsException {
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assert hasWriteLock();
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INode[] srcInodes = rootDir.getExistingPathINodes(src, false);
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INodesInPath srcInodesInPath = rootDir.getExistingPathINodes(src, false);
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INode[] srcInodes = srcInodesInPath.getINodes();
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INode srcInode = srcInodes[srcInodes.length-1];
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// check the validation of the source
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@ -574,7 +572,7 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp)
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String srcChildName = null;
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try {
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// remove src
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srcChild = removeChild(srcInodes, srcInodes.length-1);
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srcChild = removeChild(srcInodesInPath, srcInodes.length-1);
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if (srcChild == null) {
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NameNode.stateChangeLog.warn("DIR* FSDirectory.unprotectedRenameTo: "
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+ "failed to rename " + src + " to " + dst
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@ -585,7 +583,7 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp)
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srcChild.setLocalName(dstComponents[dstInodes.length-1]);
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// add src to the destination
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dstChild = addChildNoQuotaCheck(dstInodes, dstInodes.length - 1,
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dstChild = addChildNoQuotaCheck(dstInodesInPath, dstInodes.length-1,
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srcChild, UNKNOWN_DISK_SPACE);
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if (dstChild != null) {
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srcChild = null;
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@ -602,7 +600,7 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp)
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if (dstChild == null && srcChild != null) {
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// put it back
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srcChild.setLocalName(srcChildName);
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addChildNoQuotaCheck(srcInodes, srcInodes.length - 1, srcChild,
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addChildNoQuotaCheck(srcInodesInPath, srcInodes.length - 1, srcChild,
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UNKNOWN_DISK_SPACE);
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}
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}
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@ -635,7 +633,8 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp,
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}
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}
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String error = null;
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final INode[] srcInodes = rootDir.getExistingPathINodes(src, false);
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final INodesInPath srcInodesInPath = rootDir.getExistingPathINodes(src, false);
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final INode[] srcInodes = srcInodesInPath.getINodes();
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final INode srcInode = srcInodes[srcInodes.length - 1];
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// validate source
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if (srcInode == null) {
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@ -721,7 +720,7 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp,
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// Ensure dst has quota to accommodate rename
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verifyQuotaForRename(srcInodes, dstInodes);
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INode removedSrc = removeChild(srcInodes, srcInodes.length - 1);
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INode removedSrc = removeChild(srcInodesInPath, srcInodes.length - 1);
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if (removedSrc == null) {
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error = "Failed to rename " + src + " to " + dst
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+ " because the source can not be removed";
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@ -734,14 +733,14 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp,
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INode removedDst = null;
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try {
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if (dstInode != null) { // dst exists remove it
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removedDst = removeChild(dstInodes, dstInodes.length - 1);
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removedDst = removeChild(dstInodesInPath, dstInodes.length - 1);
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dstChildName = removedDst.getLocalName();
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}
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INode dstChild = null;
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removedSrc.setLocalName(dstComponents[dstInodes.length - 1]);
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// add src as dst to complete rename
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dstChild = addChildNoQuotaCheck(dstInodes, dstInodes.length - 1,
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dstChild = addChildNoQuotaCheck(dstInodesInPath, dstInodes.length - 1,
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removedSrc, UNKNOWN_DISK_SPACE);
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int filesDeleted = 0;
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@ -769,13 +768,13 @@ boolean unprotectedRenameTo(String src, String dst, long timestamp,
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if (removedSrc != null) {
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// Rename failed - restore src
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removedSrc.setLocalName(srcChildName);
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addChildNoQuotaCheck(srcInodes, srcInodes.length - 1, removedSrc,
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addChildNoQuotaCheck(srcInodesInPath, srcInodes.length - 1, removedSrc,
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UNKNOWN_DISK_SPACE);
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}
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if (removedDst != null) {
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// Rename failed - restore dst
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removedDst.setLocalName(dstChildName);
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addChildNoQuotaCheck(dstInodes, dstInodes.length - 1, removedDst,
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addChildNoQuotaCheck(dstInodesInPath, dstInodes.length - 1, removedDst,
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UNKNOWN_DISK_SPACE);
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}
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}
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@ -815,7 +814,8 @@ Block[] unprotectedSetReplication(String src,
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UnresolvedLinkException {
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assert hasWriteLock();
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INode[] inodes = rootDir.getExistingPathINodes(src, true);
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final INodesInPath inodesInPath = rootDir.getExistingPathINodes(src, true);
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final INode[] inodes = inodesInPath.getINodes();
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INode inode = inodes[inodes.length - 1];
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if (inode == null) {
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return null;
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@ -829,7 +829,7 @@ Block[] unprotectedSetReplication(String src,
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// check disk quota
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long dsDelta = (replication - oldRepl) * (fileNode.diskspaceConsumed()/oldRepl);
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updateCount(inodes, inodes.length-1, 0, dsDelta, true);
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updateCount(inodesInPath, inodes.length-1, 0, dsDelta, true);
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fileNode.setFileReplication(replication);
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@ -959,7 +959,8 @@ public void unprotectedConcat(String target, String [] srcs, long timestamp)
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}
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// do the move
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INode [] trgINodes = getExistingPathINodes(target);
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final INodesInPath trgINodesInPath = rootDir.getExistingPathINodes(target, true);
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final INode[] trgINodes = trgINodesInPath.getINodes();
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INodeFile trgInode = (INodeFile) trgINodes[trgINodes.length-1];
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INodeDirectory trgParent = (INodeDirectory)trgINodes[trgINodes.length-2];
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@ -986,7 +987,7 @@ public void unprotectedConcat(String target, String [] srcs, long timestamp)
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trgInode.setModificationTimeForce(timestamp);
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trgParent.setModificationTime(timestamp);
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// update quota on the parent directory ('count' files removed, 0 space)
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unprotectedUpdateCount(trgINodes, trgINodes.length-1, - count, 0);
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unprotectedUpdateCount(trgINodesInPath, trgINodes.length-1, -count, 0);
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}
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/**
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@ -1006,7 +1007,9 @@ boolean delete(String src, List<Block>collectedBlocks)
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int filesRemoved;
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writeLock();
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try {
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INode[] inodes = rootDir.getExistingPathINodes(normalizePath(src), false);
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final INodesInPath inodesInPath = rootDir.getExistingPathINodes(
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normalizePath(src), false);
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final INode[] inodes = inodesInPath.getINodes();
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if (checkPathINodes(inodes, src) == 0) {
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filesRemoved = 0;
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} else {
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@ -1020,7 +1023,7 @@ boolean delete(String src, List<Block>collectedBlocks)
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+ " cannot be deleted since " + snapshotNode.getFullPathName()
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+ " is snapshottable and already has snapshots");
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}
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filesRemoved = unprotectedDelete(inodes, collectedBlocks, now);
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filesRemoved = unprotectedDelete(inodesInPath, collectedBlocks, now);
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}
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} finally {
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writeUnlock();
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@ -1084,11 +1087,13 @@ void unprotectedDelete(String src, long mtime)
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List<Block> collectedBlocks = new ArrayList<Block>();
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int filesRemoved = 0;
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INode[] inodes = rootDir.getExistingPathINodes(normalizePath(src), false);
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final INodesInPath inodesInPath = rootDir.getExistingPathINodes(
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normalizePath(src), false);
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final INode[] inodes = inodesInPath.getINodes();
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if (checkPathINodes(inodes, src) == 0) {
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filesRemoved = 0;
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} else {
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filesRemoved = unprotectedDelete(inodes, collectedBlocks, mtime);
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filesRemoved = unprotectedDelete(inodesInPath, collectedBlocks, mtime);
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}
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if (filesRemoved > 0) {
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getFSNamesystem().removePathAndBlocks(src, collectedBlocks);
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@ -1103,14 +1108,15 @@ void unprotectedDelete(String src, long mtime)
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* @param mtime the time the inode is removed
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* @return the number of inodes deleted; 0 if no inodes are deleted.
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*/
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int unprotectedDelete(INode[] inodes, List<Block> collectedBlocks,
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int unprotectedDelete(INodesInPath inodesInPath, List<Block> collectedBlocks,
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long mtime) {
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assert hasWriteLock();
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final INode[] inodes = inodesInPath.getINodes();
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INode targetNode = inodes[inodes.length-1];
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int pos = inodes.length - 1;
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// Remove the node from the namespace
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targetNode = removeChild(inodes, pos);
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targetNode = removeChild(inodesInPath, pos);
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if (targetNode == null) {
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return 0;
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}
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@ -1300,28 +1306,6 @@ public INode getINode(String src) throws UnresolvedLinkException {
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}
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}
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/**
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* Retrieve the existing INodes along the given path.
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*
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* @param path the path to explore
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* @return INodes array containing the existing INodes in the order they
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* appear when following the path from the root INode to the
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* deepest INodes. The array size will be the number of expected
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* components in the path, and non existing components will be
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* filled with null
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*
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* @see INodeDirectory#getExistingPathINodes(byte[][], INode[])
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*/
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INode[] getExistingPathINodes(String path)
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throws UnresolvedLinkException {
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readLock();
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try {
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return rootDir.getExistingPathINodes(path, true);
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} finally {
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readUnlock();
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}
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}
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/**
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* Get the parent node of path.
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*
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@ -1386,13 +1370,14 @@ void updateSpaceConsumed(String path, long nsDelta, long dsDelta)
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UnresolvedLinkException {
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writeLock();
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try {
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INode[] inodes = rootDir.getExistingPathINodes(path, false);
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final INodesInPath inodesInPath = rootDir.getExistingPathINodes(path, false);
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final INode[] inodes = inodesInPath.getINodes();
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int len = inodes.length;
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if (inodes[len - 1] == null) {
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throw new FileNotFoundException(path +
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" does not exist under rootDir.");
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}
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updateCount(inodes, len-1, nsDelta, dsDelta, true);
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updateCount(inodesInPath, len-1, nsDelta, dsDelta, true);
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} finally {
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writeUnlock();
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}
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@ -1407,7 +1392,7 @@ void updateSpaceConsumed(String path, long nsDelta, long dsDelta)
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* @param checkQuota if true then check if quota is exceeded
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* @throws QuotaExceededException if the new count violates any quota limit
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*/
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private void updateCount(INode[] inodes, int numOfINodes,
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private void updateCount(INodesInPath inodesInPath, int numOfINodes,
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long nsDelta, long dsDelta, boolean checkQuota)
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throws QuotaExceededException {
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assert hasWriteLock();
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@ -1415,29 +1400,25 @@ private void updateCount(INode[] inodes, int numOfINodes,
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//still initializing. do not check or update quotas.
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return;
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}
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if (numOfINodes>inodes.length) {
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final INode[] inodes = inodesInPath.getINodes();
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if (numOfINodes > inodes.length) {
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numOfINodes = inodes.length;
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}
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if (checkQuota) {
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verifyQuota(inodes, numOfINodes, nsDelta, dsDelta, null);
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}
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for(int i = 0; i < numOfINodes; i++) {
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if (inodes[i].isQuotaSet()) { // a directory with quota
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INodeDirectoryWithQuota node =(INodeDirectoryWithQuota)inodes[i];
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node.updateNumItemsInTree(nsDelta, dsDelta);
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}
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}
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unprotectedUpdateCount(inodesInPath, numOfINodes, nsDelta, dsDelta);
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}
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/**
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* update quota of each inode and check to see if quota is exceeded.
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* See {@link #updateCount(INode[], int, long, long, boolean)}
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*/
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private void updateCountNoQuotaCheck(INode[] inodes, int numOfINodes,
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long nsDelta, long dsDelta) {
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private void updateCountNoQuotaCheck(INodesInPath inodesInPath,
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int numOfINodes, long nsDelta, long dsDelta) {
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assert hasWriteLock();
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try {
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updateCount(inodes, numOfINodes, nsDelta, dsDelta, false);
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updateCount(inodesInPath, numOfINodes, nsDelta, dsDelta, false);
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} catch (QuotaExceededException e) {
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NameNode.LOG.warn("FSDirectory.updateCountNoQuotaCheck - unexpected ", e);
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}
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@ -1451,9 +1432,10 @@ private void updateCountNoQuotaCheck(INode[] inodes, int numOfINodes,
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* @param nsDelta
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* @param dsDelta
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*/
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void unprotectedUpdateCount(INode[] inodes, int numOfINodes,
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long nsDelta, long dsDelta) {
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private void unprotectedUpdateCount(INodesInPath inodesInPath,
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int numOfINodes, long nsDelta, long dsDelta) {
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assert hasWriteLock();
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final INode[] inodes = inodesInPath.getINodes();
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for(int i=0; i < numOfINodes; i++) {
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if (inodes[i].isQuotaSet()) { // a directory with quota
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INodeDirectoryWithQuota node =(INodeDirectoryWithQuota)inodes[i];
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@ -1530,7 +1512,7 @@ boolean mkdirs(String src, PermissionStatus permissions,
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StringBuilder pathbuilder = new StringBuilder();
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int i = 1;
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for(; i < inodes.length && inodes[i] != null; i++) {
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pathbuilder.append(Path.SEPARATOR + names[i]);
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pathbuilder.append(Path.SEPARATOR).append(names[i]);
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if (!inodes[i].isDirectory()) {
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throw new FileAlreadyExistsException("Parent path is not a directory: "
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+ pathbuilder+ " "+inodes[i].getLocalName());
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@ -1572,8 +1554,7 @@ boolean mkdirs(String src, PermissionStatus permissions,
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// create directories beginning from the first null index
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for(; i < inodes.length; i++) {
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pathbuilder.append(Path.SEPARATOR + names[i]);
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String cur = pathbuilder.toString();
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unprotectedMkdir(inodes, i, components[i],
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unprotectedMkdir(inodesInPath, i, components[i],
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(i < lastInodeIndex) ? parentPermissions : permissions, now);
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if (inodes[i] == null) {
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return false;
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@ -1582,6 +1563,8 @@ boolean mkdirs(String src, PermissionStatus permissions,
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// to match count of FilesDeleted metric.
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if (getFSNamesystem() != null)
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NameNode.getNameNodeMetrics().incrFilesCreated();
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final String cur = pathbuilder.toString();
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fsImage.getEditLog().logMkDir(cur, inodes[i]);
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if(NameNode.stateChangeLog.isDebugEnabled()) {
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NameNode.stateChangeLog.debug(
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@ -1602,30 +1585,30 @@ INode unprotectedMkdir(String src, PermissionStatus permissions,
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INodesInPath inodesInPath = rootDir.getExistingPathINodes(components,
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components.length, false);
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INode[] inodes = inodesInPath.getINodes();
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unprotectedMkdir(inodes, inodes.length-1, components[inodes.length-1],
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permissions, timestamp);
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return inodes[inodes.length-1];
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final int pos = inodes.length - 1;
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unprotectedMkdir(inodesInPath, pos, components[pos], permissions, timestamp);
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return inodes[pos];
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}
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/** create a directory at index pos.
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* The parent path to the directory is at [0, pos-1].
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* All ancestors exist. Newly created one stored at index pos.
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*/
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private void unprotectedMkdir(INode[] inodes, int pos,
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private void unprotectedMkdir(INodesInPath inodesInPath, int pos,
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byte[] name, PermissionStatus permission,
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long timestamp) throws QuotaExceededException {
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assert hasWriteLock();
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inodes[pos] = addChild(inodes, pos,
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new INodeDirectory(name, permission, timestamp),
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||||
-1);
|
||||
final INodeDirectory dir = new INodeDirectory(name, permission, timestamp);
|
||||
final INode inode = addChild(inodesInPath, pos, dir, -1, true);
|
||||
inodesInPath.setINode(pos, inode);
|
||||
}
|
||||
|
||||
/** Add a node child to the namespace. The full path name of the node is src.
|
||||
* childDiskspace should be -1, if unknown.
|
||||
* QuotaExceededException is thrown if it violates quota limit */
|
||||
private <T extends INode> T addNode(String src, T child,
|
||||
long childDiskspace)
|
||||
throws QuotaExceededException, UnresolvedLinkException {
|
||||
* @throw QuotaExceededException is thrown if it violates quota limit
|
||||
*/
|
||||
private <T extends INode> T addNode(String src, T child, long childDiskspace
|
||||
) throws QuotaExceededException, UnresolvedLinkException {
|
||||
byte[][] components = INode.getPathComponents(src);
|
||||
byte[] path = components[components.length-1];
|
||||
child.setLocalName(path);
|
||||
@ -1634,8 +1617,8 @@ private <T extends INode> T addNode(String src, T child,
|
||||
try {
|
||||
INodesInPath inodesInPath = rootDir.getExistingPathINodes(components,
|
||||
components.length, false);
|
||||
INode[] inodes = inodesInPath.getINodes();
|
||||
return addChild(inodes, inodes.length-1, child, childDiskspace);
|
||||
return addChild(inodesInPath, inodesInPath.getINodes().length-1, child,
|
||||
childDiskspace, true);
|
||||
} finally {
|
||||
writeUnlock();
|
||||
}
|
||||
@ -1761,10 +1744,13 @@ protected <T extends INode> void verifyFsLimits(INode[] pathComponents,
|
||||
|
||||
/** Add a node child to the inodes at index pos.
|
||||
* Its ancestors are stored at [0, pos-1].
|
||||
* QuotaExceededException is thrown if it violates quota limit */
|
||||
private <T extends INode> T addChild(INode[] pathComponents, int pos,
|
||||
* @return the added node.
|
||||
* @throw QuotaExceededException is thrown if it violates quota limit
|
||||
*/
|
||||
private <T extends INode> T addChild(INodesInPath inodesInPath, int pos,
|
||||
T child, long childDiskspace,
|
||||
boolean checkQuota) throws QuotaExceededException {
|
||||
final INode[] inodes = inodesInPath.getINodes();
|
||||
// The filesystem limits are not really quotas, so this check may appear
|
||||
// odd. It's because a rename operation deletes the src, tries to add
|
||||
// to the dest, if that fails, re-adds the src from whence it came.
|
||||
@ -1772,7 +1758,7 @@ private <T extends INode> T addChild(INode[] pathComponents, int pos,
|
||||
// original location becase a quota violation would cause the the item
|
||||
// to go "poof". The fs limits must be bypassed for the same reason.
|
||||
if (checkQuota) {
|
||||
verifyFsLimits(pathComponents, pos, child);
|
||||
verifyFsLimits(inodes, pos, child);
|
||||
}
|
||||
|
||||
INode.DirCounts counts = new INode.DirCounts();
|
||||
@ -1780,31 +1766,22 @@ private <T extends INode> T addChild(INode[] pathComponents, int pos,
|
||||
if (childDiskspace < 0) {
|
||||
childDiskspace = counts.getDsCount();
|
||||
}
|
||||
updateCount(pathComponents, pos, counts.getNsCount(), childDiskspace,
|
||||
checkQuota);
|
||||
if (pathComponents[pos-1] == null) {
|
||||
updateCount(inodesInPath, pos, counts.getNsCount(), childDiskspace, checkQuota);
|
||||
if (inodes[pos-1] == null) {
|
||||
throw new NullPointerException("Panic: parent does not exist");
|
||||
}
|
||||
T addedNode = ((INodeDirectory)pathComponents[pos-1]).addChild(
|
||||
child, true);
|
||||
final T addedNode = ((INodeDirectory)inodes[pos-1]).addChild(child, true);
|
||||
if (addedNode == null) {
|
||||
updateCount(pathComponents, pos, -counts.getNsCount(),
|
||||
-childDiskspace, true);
|
||||
updateCount(inodesInPath, pos, -counts.getNsCount(), -childDiskspace, true);
|
||||
}
|
||||
return addedNode;
|
||||
}
|
||||
|
||||
private <T extends INode> T addChild(INode[] pathComponents, int pos,
|
||||
T child, long childDiskspace)
|
||||
throws QuotaExceededException {
|
||||
return addChild(pathComponents, pos, child, childDiskspace, true);
|
||||
}
|
||||
|
||||
private <T extends INode> T addChildNoQuotaCheck(INode[] pathComponents,
|
||||
private <T extends INode> T addChildNoQuotaCheck(INodesInPath inodesInPath,
|
||||
int pos, T child, long childDiskspace) {
|
||||
T inode = null;
|
||||
try {
|
||||
inode = addChild(pathComponents, pos, child, childDiskspace, false);
|
||||
inode = addChild(inodesInPath, pos, child, childDiskspace, false);
|
||||
} catch (QuotaExceededException e) {
|
||||
NameNode.LOG.warn("FSDirectory.addChildNoQuotaCheck - unexpected", e);
|
||||
}
|
||||
@ -1816,13 +1793,13 @@ private <T extends INode> T addChildNoQuotaCheck(INode[] pathComponents,
|
||||
* Count of each ancestor with quota is also updated.
|
||||
* Return the removed node; null if the removal fails.
|
||||
*/
|
||||
private INode removeChild(INode[] pathComponents, int pos) {
|
||||
INode removedNode =
|
||||
((INodeDirectory)pathComponents[pos-1]).removeChild(pathComponents[pos]);
|
||||
private INode removeChild(final INodesInPath inodesInPath, int pos) {
|
||||
final INode[] inodes = inodesInPath.getINodes();
|
||||
INode removedNode = ((INodeDirectory)inodes[pos-1]).removeChild(inodes[pos]);
|
||||
if (removedNode != null) {
|
||||
INode.DirCounts counts = new INode.DirCounts();
|
||||
removedNode.spaceConsumedInTree(counts);
|
||||
updateCountNoQuotaCheck(pathComponents, pos,
|
||||
updateCountNoQuotaCheck(inodesInPath, pos,
|
||||
-counts.getNsCount(), -counts.getDsCount());
|
||||
}
|
||||
return removedNode;
|
||||
@ -1957,7 +1934,8 @@ INodeDirectory unprotectedSetQuota(String src, long nsQuota, long dsQuota)
|
||||
|
||||
String srcs = normalizePath(src);
|
||||
|
||||
INode[] inodes = rootDir.getExistingPathINodes(src, true);
|
||||
final INodesInPath inodesInPath = rootDir.getExistingPathINodes(src, true);
|
||||
final INode[] inodes = inodesInPath.getINodes();
|
||||
INode targetNode = inodes[inodes.length-1];
|
||||
if (targetNode == null) {
|
||||
throw new FileNotFoundException("Directory does not exist: " + srcs);
|
||||
|
||||
@ -159,6 +159,7 @@
|
||||
import org.apache.hadoop.hdfs.server.common.Storage.StorageDirType;
|
||||
import org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory;
|
||||
import org.apache.hadoop.hdfs.server.common.Util;
|
||||
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory.INodesInPath;
|
||||
import org.apache.hadoop.hdfs.server.namenode.LeaseManager.Lease;
|
||||
import org.apache.hadoop.hdfs.server.namenode.NameNode.OperationCategory;
|
||||
import org.apache.hadoop.hdfs.server.namenode.ha.ActiveState;
|
||||
@ -1674,7 +1675,7 @@ long getPreferredBlockSize(String filename)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
/**
|
||||
* Verify that parent directory of src exists.
|
||||
*/
|
||||
private void verifyParentDir(String src) throws FileNotFoundException,
|
||||
@ -1682,14 +1683,13 @@ private void verifyParentDir(String src) throws FileNotFoundException,
|
||||
assert hasReadOrWriteLock();
|
||||
Path parent = new Path(src).getParent();
|
||||
if (parent != null) {
|
||||
INode[] pathINodes = dir.getExistingPathINodes(parent.toString());
|
||||
INode parentNode = pathINodes[pathINodes.length - 1];
|
||||
final INode parentNode = dir.getINode(parent.toString());
|
||||
if (parentNode == null) {
|
||||
throw new FileNotFoundException("Parent directory doesn't exist: "
|
||||
+ parent.toString());
|
||||
+ parent);
|
||||
} else if (!parentNode.isDirectory() && !parentNode.isSymlink()) {
|
||||
throw new ParentNotDirectoryException("Parent path is not a directory: "
|
||||
+ parent.toString());
|
||||
+ parent);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -2209,18 +2209,18 @@ LocatedBlock getAdditionalBlock(String src,
|
||||
if (isInSafeMode()) {
|
||||
throw new SafeModeException("Cannot add block to " + src, safeMode);
|
||||
}
|
||||
INode[] pathINodes = dir.getExistingPathINodes(src);
|
||||
int inodesLen = pathINodes.length;
|
||||
checkLease(src, clientName, pathINodes[inodesLen-1]);
|
||||
INodeFileUnderConstruction pendingFile = (INodeFileUnderConstruction)
|
||||
pathINodes[inodesLen - 1];
|
||||
|
||||
final INodesInPath inodesInPath = dir.rootDir.getExistingPathINodes(src, true);
|
||||
final INode[] inodes = inodesInPath.getINodes();
|
||||
final INodeFileUnderConstruction pendingFile
|
||||
= checkLease(src, clientName, inodes[inodes.length - 1]);
|
||||
|
||||
if (!checkFileProgress(pendingFile, false)) {
|
||||
throw new NotReplicatedYetException("Not replicated yet:" + src);
|
||||
}
|
||||
|
||||
// allocate new block record block locations in INode.
|
||||
newBlock = allocateBlock(src, pathINodes, targets);
|
||||
newBlock = allocateBlock(src, inodesInPath, targets);
|
||||
|
||||
for (DatanodeDescriptor dn : targets) {
|
||||
dn.incBlocksScheduled();
|
||||
@ -2431,14 +2431,12 @@ private boolean completeFileInternal(String src,
|
||||
* Allocate a block at the given pending filename
|
||||
*
|
||||
* @param src path to the file
|
||||
* @param inodes INode representing each of the components of src.
|
||||
* <code>inodes[inodes.length-1]</code> is the INode for the file.
|
||||
*
|
||||
* @param inodesInPath representing each of the components of src.
|
||||
* The last INode is the INode for the file.
|
||||
* @throws QuotaExceededException If addition of block exceeds space quota
|
||||
*/
|
||||
private Block allocateBlock(String src, INode[] inodes,
|
||||
DatanodeDescriptor targets[]) throws QuotaExceededException,
|
||||
SafeModeException {
|
||||
private Block allocateBlock(String src, INodesInPath inodesInPath,
|
||||
DatanodeDescriptor targets[]) throws IOException {
|
||||
assert hasWriteLock();
|
||||
Block b = new Block(DFSUtil.getRandom().nextLong(), 0, 0);
|
||||
while(isValidBlock(b)) {
|
||||
@ -2447,7 +2445,7 @@ private Block allocateBlock(String src, INode[] inodes,
|
||||
// Increment the generation stamp for every new block.
|
||||
nextGenerationStamp();
|
||||
b.setGenerationStamp(getGenerationStamp());
|
||||
b = dir.addBlock(src, inodes, b, targets);
|
||||
b = dir.addBlock(src, inodesInPath, b, targets);
|
||||
NameNode.stateChangeLog.info("BLOCK* allocateBlock: " + src + ". "
|
||||
+ blockPoolId + " " + b);
|
||||
return b;
|
||||
|
||||
@ -121,7 +121,7 @@ void checkPermission(String path, INodeDirectory root, boolean doCheckOwner,
|
||||
}
|
||||
// check if (parentAccess != null) && file exists, then check sb
|
||||
// Resolve symlinks, the check is performed on the link target.
|
||||
INode[] inodes = root.getExistingPathINodes(path, true);
|
||||
final INode[] inodes = root.getExistingPathINodes(path, true).getINodes();
|
||||
int ancestorIndex = inodes.length - 2;
|
||||
for(; ancestorIndex >= 0 && inodes[ancestorIndex] == null;
|
||||
ancestorIndex--);
|
||||
|
||||
@ -284,14 +284,12 @@ private static boolean isDotSnapshotDir(byte[] pathComponent) {
|
||||
* components in the path, and non existing components will be
|
||||
* filled with null
|
||||
*
|
||||
* @see #getExistingPathINodes(byte[][], INode[])
|
||||
* @see #getExistingPathINodes(byte[][], int, boolean)
|
||||
*/
|
||||
INode[] getExistingPathINodes(String path, boolean resolveLink)
|
||||
INodesInPath getExistingPathINodes(String path, boolean resolveLink)
|
||||
throws UnresolvedLinkException {
|
||||
byte[][] components = getPathComponents(path);
|
||||
INodesInPath inodes = this.getExistingPathINodes(components,
|
||||
components.length, resolveLink);
|
||||
return inodes.inodes;
|
||||
return getExistingPathINodes(components, components.length, resolveLink);
|
||||
}
|
||||
|
||||
/**
|
||||
@ -563,6 +561,10 @@ private void addNode(INode node) {
|
||||
inodes[size++] = node;
|
||||
}
|
||||
|
||||
void setINode(int i, INode inode) {
|
||||
inodes[i] = inode;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return The number of non-null elements
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user