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HDFS-7066. LazyWriter#evictBlocks misses a null check for replicaState. (Contributed by Xiaoyu Yao)

This commit is contained in:
arp 2014-09-15 15:28:17 -07:00
parent fdf0542d8e
commit a4dcbaa332
2 changed files with 7 additions and 0 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-6581.txt
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@ -44,3 +44,6 @@
HDFS-6978. Directory scanner should correctly reconcile blocks on RAM
disk. (Arpit Agarwal)
HDFS-7066. LazyWriter#evictBlocks misses a null check for replicaState.
(Xiaoyu Yao via Arpit Agarwal)

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
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@ -2331,6 +2331,10 @@ class FsDatasetImpl implements FsDatasetSpi<FsVolumeImpl> {
LazyWriteReplicaTracker.ReplicaState replicaState =
lazyWriteReplicaTracker.getNextCandidateForEviction();
if (replicaState == null) {
break;
}
if (LOG.isDebugEnabled()) {
LOG.debug("Evicting block " + replicaState);
}