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HDFS-10342. BlockManager#createLocatedBlocks should not check corrupt replicas if none are corrupt. Contributed by Kuhu Shukla. 

(cherry picked from commit b10c936020)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
This commit is contained in:
Kihwal Lee 2016-08-16 09:28:04 -05:00
parent da70d6f25d
commit 65a41696b2
2 changed files with 34 additions and 5 deletions
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20
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
View File

@ -963,12 +963,18 @@ public class BlockManager implements BlockStatsMXBean {
DatanodeStorageInfo[] machines = new DatanodeStorageInfo[numMachines];
int j = 0;
if (numMachines > 0) {
final boolean noCorrupt = (numCorruptReplicas == 0);
for(DatanodeStorageInfo storage : blocksMap.getStorages(blk)) {
final DatanodeDescriptor d = storage.getDatanodeDescriptor();
final boolean replicaCorrupt = corruptReplicas.isReplicaCorrupt(blk, d);
if ((isCorrupt || (!replicaCorrupt)) &&
storage.getState() != State.FAILED) {
machines[j++] = storage;
if (storage.getState() != State.FAILED) {
if (noCorrupt) {
machines[j++] = storage;
} else {
final DatanodeDescriptor d = storage.getDatanodeDescriptor();
final boolean replicaCorrupt = isReplicaCorrupt(blk, d);
if (isCorrupt || !replicaCorrupt) {
machines[j++] = storage;
}
}
}
}
}
@ -4062,4 +4068,8 @@ public class BlockManager implements BlockStatsMXBean {
boolean isGenStampInFuture(Block block) {
return blockIdManager.isGenStampInFuture(block);
}
boolean isReplicaCorrupt(BlockInfo blk, DatanodeDescriptor d) {
return corruptReplicas.isReplicaCorrupt(blk, d);
}
}

19
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
View File

@ -1201,4 +1201,23 @@ public class TestBlockManager {
file.delete();
}
}
@Test
public void testIsReplicaCorruptCall() throws Exception {
BlockManager spyBM = spy(bm);
List<DatanodeStorageInfo> origStorages = getStorages(0, 1, 3);
List<DatanodeDescriptor> origNodes = getNodes(origStorages);
BlockInfo blockInfo = addBlockOnNodes(0, origNodes);
spyBM.createLocatedBlocks(new BlockInfo[]{blockInfo}, 3L, false, 0L, 3L,
false, false, null);
verify(spyBM, Mockito.atLeast(0)).
isReplicaCorrupt(Mockito.any(BlockInfo.class),
Mockito.any(DatanodeDescriptor.class));
addCorruptBlockOnNodes(0, origNodes);
spyBM.createLocatedBlocks(new BlockInfo[]{blockInfo}, 3L, false, 0L, 3L,
false, false, null);
verify(spyBM, Mockito.atLeast(1)).
isReplicaCorrupt(Mockito.any(BlockInfo.class),
Mockito.any(DatanodeDescriptor.class));
}
}