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HDFS-8623. Refactor NameNode handling of invalid, corrupt, and under-recovery blocks. Contributed by Zhe Zhang.

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This commit is contained in:
Jing Zhao 2015-06-26 10:49:01 -07:00
parent 1b764a01fd
commit de480d6c89
13 changed files with 361 additions and 302 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -679,6 +679,9 @@ Release 2.8.0 - UNRELEASED
HDFS-8651. Make hadoop-hdfs-project Native code -Wall-clean (Alan Burlison
via Colin P. McCabe)
HDFS-8623. Refactor NameNode handling of invalid, corrupt, and under-recovery
blocks. (Zhe Zhang via jing9)
OPTIMIZATIONS
HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than

12
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockInfo.java
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@ -172,19 +172,23 @@ public int getCapacity() {
public abstract int numNodes();
/**
* Add a {@link DatanodeStorageInfo} location for a block.
* Add a {@link DatanodeStorageInfo} location for a block
* @param storage The storage to add
* @param reportedBlock The block reported from the datanode. This is only
* used by erasure coded blocks, this block's id contains
* information indicating the index of the block in the
* corresponding block group.
*/
abstract boolean addStorage(DatanodeStorageInfo storage);
abstract boolean addStorage(DatanodeStorageInfo storage, Block reportedBlock);
/**
* Remove {@link DatanodeStorageInfo} location for a block
*/
abstract boolean removeStorage(DatanodeStorageInfo storage);
/**
* Replace the current BlockInfo with the new one in corresponding
* DatanodeStorageInfo's linked list
* DatanodeStorageInfo's linked list.
*/
abstract void replaceBlock(BlockInfo newBlock);

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockInfoContiguous.java
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@ -45,7 +45,7 @@ protected BlockInfoContiguous(BlockInfo from) {
}
@Override
boolean addStorage(DatanodeStorageInfo storage) {
boolean addStorage(DatanodeStorageInfo storage, Block reportedBlock) {
return ContiguousBlockStorageOp.addStorage(this, storage);
}

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockInfoUnderConstructionContiguous.java
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@ -69,7 +69,7 @@ public BlockInfoContiguous convertToCompleteBlock() {
}
@Override
boolean addStorage(DatanodeStorageInfo storage) {
boolean addStorage(DatanodeStorageInfo storage, Block reportedBlock) {
return ContiguousBlockStorageOp.addStorage(this, storage);
}

595
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
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File diff suppressed because it is too large Load Diff

15
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeStorageInfo.java
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@ -24,6 +24,7 @@
import com.google.common.annotations.VisibleForTesting;
import org.apache.hadoop.fs.StorageType;
import org.apache.hadoop.hdfs.protocol.Block;
import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
import org.apache.hadoop.hdfs.server.protocol.DatanodeStorage;
import org.apache.hadoop.hdfs.server.protocol.DatanodeStorage.State;
@ -226,7 +227,7 @@ long getBlockPoolUsed() {
return blockPoolUsed;
}
public AddBlockResult addBlock(BlockInfo b) {
public AddBlockResult addBlock(BlockInfo b, Block reportedBlock) {
// First check whether the block belongs to a different storage
// on the same DN.
AddBlockResult result = AddBlockResult.ADDED;
@ -245,10 +246,18 @@ public AddBlockResult addBlock(BlockInfo b) {
}
// add to the head of the data-node list
b.addStorage(this);
b.addStorage(this, reportedBlock);
insertToList(b);
return result;
}
AddBlockResult addBlock(BlockInfo b) {
return addBlock(b, b);
}
public void insertToList(BlockInfo b) {
blockList = b.listInsert(blockList, this);
numBlocks++;
return result;
}
public boolean removeBlock(BlockInfo b) {

18
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -143,7 +143,6 @@
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.FileAlreadyExistsException;
import org.apache.hadoop.fs.FileEncryptionInfo;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FsServerDefaults;
@ -3136,7 +3135,7 @@ void removeBlocksAndUpdateSafemodeTotal(BlocksMapUpdateInfo blocks) {
if (trackBlockCounts) {
if (b.isComplete()) {
numRemovedComplete++;
if (blockManager.checkMinReplication(b)) {
if (blockManager.hasMinStorage(b)) {
numRemovedSafe++;
}
}
@ -3368,7 +3367,7 @@ boolean internalReleaseLease(Lease lease, String src, INodesInPath iip,
curBlock = blocks[nrCompleteBlocks];
if(!curBlock.isComplete())
break;
assert blockManager.checkMinReplication(curBlock) :
assert blockManager.hasMinStorage(curBlock) :
"A COMPLETE block is not minimally replicated in " + src;
}
@ -3404,7 +3403,7 @@ boolean internalReleaseLease(Lease lease, String src, INodesInPath iip,
// If penultimate block doesn't exist then its minReplication is met
boolean penultimateBlockMinReplication = penultimateBlock == null ? true :
blockManager.checkMinReplication(penultimateBlock);
blockManager.hasMinStorage(penultimateBlock);
switch(lastBlockState) {
case COMPLETE:
@ -3413,7 +3412,7 @@ boolean internalReleaseLease(Lease lease, String src, INodesInPath iip,
case COMMITTED:
// Close file if committed blocks are minimally replicated
if(penultimateBlockMinReplication &&
blockManager.checkMinReplication(lastBlock)) {
blockManager.hasMinStorage(lastBlock)) {
finalizeINodeFileUnderConstruction(src, pendingFile,
iip.getLatestSnapshotId());
NameNode.stateChangeLog.warn("BLOCK*"
@ -3705,9 +3704,9 @@ void commitBlockSynchronization(ExtendedBlock oldBlock,
trimmedTargets.get(i).getStorageInfo(trimmedStorages.get(i));
if (storageInfo != null) {
if(copyTruncate) {
storageInfo.addBlock(truncatedBlock);
storageInfo.addBlock(truncatedBlock, truncatedBlock);
} else {
storageInfo.addBlock(storedBlock);
storageInfo.addBlock(storedBlock, storedBlock);
}
}
}
@ -3723,8 +3722,9 @@ void commitBlockSynchronization(ExtendedBlock oldBlock,
} else {
iFile.setLastBlock(storedBlock, trimmedStorageInfos);
if (closeFile) {
blockManager.markBlockReplicasAsCorrupt(storedBlock,
oldGenerationStamp, oldNumBytes, trimmedStorageInfos);
blockManager.markBlockReplicasAsCorrupt(oldBlock.getLocalBlock(),
storedBlock, oldGenerationStamp, oldNumBytes,
trimmedStorageInfos);
}
}
}

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NamenodeFsck.java
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@ -647,7 +647,7 @@ private void collectBlocksSummary(String parent, HdfsFileStatus file, Result res
.getStorageType()));
}
if (showReplicaDetails) {
LightWeightLinkedSet<Block> blocksExcess =
LightWeightLinkedSet<BlockInfo> blocksExcess =
bm.excessReplicateMap.get(dnDesc.getDatanodeUuid());
Collection<DatanodeDescriptor> corruptReplicas =
bm.getCorruptReplicas(block.getLocalBlock());

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockInfo.java
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@ -63,7 +63,7 @@ public void testAddStorage() throws Exception {
final DatanodeStorageInfo storage = DFSTestUtil.createDatanodeStorageInfo("storageID", "127.0.0.1");
boolean added = blockInfo.addStorage(storage);
boolean added = blockInfo.addStorage(storage, blockInfo);
Assert.assertTrue(added);
Assert.assertEquals(storage, blockInfo.getStorageInfo(0));

4
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
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@ -383,7 +383,7 @@ private void fulfillPipeline(BlockInfo blockInfo,
for (int i = 1; i < pipeline.length; i++) {
DatanodeStorageInfo storage = pipeline[i];
bm.addBlock(storage, blockInfo, null);
blockInfo.addStorage(storage);
blockInfo.addStorage(storage, blockInfo);
}
}
@ -393,7 +393,7 @@ private BlockInfo blockOnNodes(long blkId, List<DatanodeDescriptor> nodes) {
for (DatanodeDescriptor dn : nodes) {
for (DatanodeStorageInfo storage : dn.getStorageInfos()) {
blockInfo.addStorage(storage);
blockInfo.addStorage(storage, blockInfo);
}
}
return blockInfo;

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestNodeCount.java
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@ -100,7 +100,7 @@ public void testNodeCount() throws Exception {
DatanodeDescriptor nonExcessDN = null;
for(DatanodeStorageInfo storage : bm.blocksMap.getStorages(block.getLocalBlock())) {
final DatanodeDescriptor dn = storage.getDatanodeDescriptor();
Collection<Block> blocks = bm.excessReplicateMap.get(dn.getDatanodeUuid());
Collection<BlockInfo> blocks = bm.excessReplicateMap.get(dn.getDatanodeUuid());
if (blocks == null || !blocks.contains(block.getLocalBlock()) ) {
nonExcessDN = dn;
break;

4
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestOverReplicatedBlocks.java
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@ -34,7 +34,6 @@
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.MiniDFSCluster.DataNodeProperties;
import org.apache.hadoop.hdfs.protocol.Block;
import org.apache.hadoop.hdfs.protocol.DatanodeID;
import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
import org.apache.hadoop.hdfs.server.datanode.DataNode;
@ -42,7 +41,6 @@
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
import org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter;
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
import org.apache.hadoop.util.Time;
import org.junit.Test;
public class TestOverReplicatedBlocks {
@ -185,7 +183,7 @@ public void testChooseReplicaToDelete() throws Exception {
// All replicas for deletion should be scheduled on lastDN.
// And should not actually be deleted, because lastDN does not heartbeat.
namesystem.readLock();
Collection<Block> dnBlocks =
Collection<BlockInfo> dnBlocks =
namesystem.getBlockManager().excessReplicateMap.get(lastDNid);
assertEquals("Replicas on node " + lastDNid + " should have been deleted",
SMALL_FILE_LENGTH / SMALL_BLOCK_SIZE, dnBlocks.size());

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicy.java
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@ -1250,7 +1250,7 @@ public void testAddStoredBlockDoesNotCauseSkippedReplication()
when(storage.removeBlock(any(BlockInfo.class))).thenReturn(true);
when(storage.addBlock(any(BlockInfo.class))).thenReturn
(DatanodeStorageInfo.AddBlockResult.ADDED);
ucBlock.addStorage(storage);
ucBlock.addStorage(storage, ucBlock);
when(mbc.setLastBlock((BlockInfo) any(), (DatanodeStorageInfo[]) any()))
.thenReturn(ucBlock);