amahussein commented on a change in pull request #3200:
URL: https://github.com/apache/hadoop/pull/3200#discussion_r703761237
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File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
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@@ -201,16 +201,16 @@ public Block getStoredBlock(String bpid, long blkid)
* The deepCopyReplica call doesn't use the datasetock since it will lead the
* potential deadlock with the {@link FsVolumeList#addBlockPool} call.
*/
+ @SuppressWarnings("unchecked")
@Override
public Set<? extends Replica> deepCopyReplica(String bpid)
throws IOException {
- Set<? extends Replica> replicas = null;
+ Set<? extends Replica> replicas;
Review comment:
Thanks @brahmareddybattula
I think we can apply some changes to trunk given that the type casting is
unchecked and causes some Javac warnings.
Perhaps we can file another refactoring jira to address these issues on
trunk.
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