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nanda pushed a commit to branch trunk
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The following commit(s) were added to refs/heads/trunk by this push:
new 14c43f8 HDDS-1752. ConcurrentModificationException while handling
DeadNodeHandler event. (#1080)
14c43f8 is described below
commit 14c43f85de86c8547dd23e228584cc5e83449870
Author: Hrishikesh Gadre <[email protected]>
AuthorDate: Fri Jul 12 01:45:48 2019 -0700
HDDS-1752. ConcurrentModificationException while handling DeadNodeHandler
event. (#1080)
---
.../java/org/apache/hadoop/hdds/scm/node/states/Node2PipelineMap.java | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
a/hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/states/Node2PipelineMap.java
b/hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/states/Node2PipelineMap.java
index 20fe797..f8633f9 100644
---
a/hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/states/Node2PipelineMap.java
+++
b/hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/states/Node2PipelineMap.java
@@ -22,9 +22,9 @@ import org.apache.hadoop.hdds.protocol.DatanodeDetails;
import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
import org.apache.hadoop.hdds.scm.pipeline.PipelineID;
-import java.util.HashSet;
import java.util.Set;
import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
/**
* This data structure maintains the list of pipelines which the given
@@ -59,7 +59,7 @@ public class Node2PipelineMap extends
Node2ObjectsMap<PipelineID> {
public synchronized void addPipeline(Pipeline pipeline) {
for (DatanodeDetails details : pipeline.getNodes()) {
UUID dnId = details.getUuid();
- dn2ObjectMap.computeIfAbsent(dnId, k -> new HashSet<>())
+ dn2ObjectMap.computeIfAbsent(dnId, k -> ConcurrentHashMap.newKeySet())
.add(pipeline.getId());
}
}
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