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The following commit(s) were added to refs/heads/trunk by this push:
new 453771f HDFS-15295. AvailableSpaceBlockPlacementPolicy should use
chooseRandomWithStorageTypeTwoTrial() for better performance. Contributed by
Jinglun.
453771f is described below
commit 453771f170a062265b7687b31b2a3735827958fb
Author: Wei-Chiu Chuang <[email protected]>
AuthorDate: Fri Apr 24 11:53:24 2020 -0700
HDFS-15295. AvailableSpaceBlockPlacementPolicy should use
chooseRandomWithStorageTypeTwoTrial() for better performance. Contributed by
Jinglun.
---
.../server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java
index 21c110f..ad6fa0f 100644
---
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java
+++
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java
@@ -87,9 +87,9 @@ public class AvailableSpaceBlockPlacementPolicy extends
Preconditions.checkArgument(clusterMap instanceof DFSNetworkTopology);
DFSNetworkTopology dfsClusterMap = (DFSNetworkTopology)clusterMap;
DatanodeDescriptor a = (DatanodeDescriptor) dfsClusterMap
- .chooseRandomWithStorageType(scope, excludedNode, type);
+ .chooseRandomWithStorageTypeTwoTrial(scope, excludedNode, type);
DatanodeDescriptor b = (DatanodeDescriptor) dfsClusterMap
- .chooseRandomWithStorageType(scope, excludedNode, type);
+ .chooseRandomWithStorageTypeTwoTrial(scope, excludedNode, type);
return select(a, b, false);
}
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