Apache
/
hadoop
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HDFS-13155. BlockPlacementPolicyDefault.chooseTargetInOrder Not Checking Return Value for NULL. Contributed by Zsolt Venczel. 

(cherry picked from commit bccdfeee0a)
(cherry picked from commit 302c36ffdc)
This commit is contained in:
Wei-Chiu Chuang 2018-06-04 07:02:05 -07:00
parent 3ee5fd16f4
commit 63fc8f82cb
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockPlacementPolicyDefault.java
View File

@ -480,9 +480,13 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
throws NotEnoughReplicasException {
final int numOfResults = results.size();
if (numOfResults == 0) {
writer = chooseLocalStorage(writer, excludedNodes, blocksize,
maxNodesPerRack, results, avoidStaleNodes, storageTypes, true)
.getDatanodeDescriptor();
DatanodeStorageInfo storageInfo = chooseLocalStorage(writer,
excludedNodes, blocksize, maxNodesPerRack, results, avoidStaleNodes,
storageTypes, true);
writer = (storageInfo != null) ? storageInfo.getDatanodeDescriptor()
: null;
if (--numOfReplicas == 0) {
return writer;
}