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Merge 1563640 from trunk: HDFS-5828. BlockPlacementPolicyWithNodeGroup can place multiple replicas on the same node group when dfs.namenode.avoid.write.stale.datanode is true. (Buddy via junping_du) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1563643 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Junping Du 2014-02-02 15:50:43 +00:00
parent 4fa696384d
commit ad680d119c
3 changed files with 7 additions and 1 deletions
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4
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -38,6 +38,10 @@ Release 2.4.0 - UNRELEASED
HDFS-5856. DataNode.checkDiskError might throw NPE.
(Josh Elser via suresh)
HDFS-5828. BlockPlacementPolicyWithNodeGroup can place multiple replicas on
the same node group when dfs.namenode.avoid.write.stale.datanode is true.
(Buddy via junping_du)
Release 2.3.0 - UNRELEASED
INCOMPATIBLE CHANGES

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockPlacementPolicyDefault.java
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@ -317,7 +317,7 @@ public class BlockPlacementPolicyDefault extends BlockPlacementPolicy {
// We need to additionally exclude the nodes that were added to the
// result list in the successful calls to choose*() above.
for (DatanodeStorageInfo resultStorage : results) {
oldExcludedNodes.add(resultStorage.getDatanodeDescriptor());
addToExcludedNodes(resultStorage.getDatanodeDescriptor(), oldExcludedNodes);
}
// Set numOfReplicas, since it can get out of sync with the result list
// if the NotEnoughReplicasException was thrown in chooseRandom().

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicyWithNodeGroup.java
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@ -124,6 +124,8 @@ public class TestReplicationPolicyWithNodeGroup {
CONF.set(CommonConfigurationKeysPublic.NET_TOPOLOGY_IMPL_KEY,
NetworkTopologyWithNodeGroup.class.getName());
CONF.setBoolean(DFSConfigKeys.DFS_NAMENODE_AVOID_STALE_DATANODE_FOR_WRITE_KEY, true);
File baseDir = PathUtils.getTestDir(TestReplicationPolicyWithNodeGroup.class);
CONF.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,