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https://issues.apache.org/jira/browse/HDFS-10231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16410419#comment-16410419
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Hudson commented on HDFS-10231:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13869 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13869/])
HDFS-10231: libhdfs++: Fix race conditions in RPC layer. Contributed by
(james.clampffer: rev ed77d8d5df23be776e87032c9667b9025e889504)
* (edit)
hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/lib/rpc/rpc_engine.h
* (edit)
hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/lib/rpc/rpc_connection.cc
* (edit)
hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/tests/rpc_engine_test.cc
* (edit)
hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/lib/rpc/rpc_connection.h
* (edit)
hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/lib/rpc/rpc_engine.cc
> libhdfs++: Fix race conditions in RPC layer
> -------------------------------------------
>
> Key: HDFS-10231
> URL: https://issues.apache.org/jira/browse/HDFS-10231
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: Bob Hansen
> Priority: Major
> Attachments: HDFS-10231.HDFS-8707.000.patch,
> HDFS-10231.HDFS-8707.001.patch, HDFS-10231.HDFS-8707.002.patch,
> HDFS-10231.HDFS-8707.003.patch
>
>
> Namenode calls seem to hang and the retry logic never properly kicks in. It
> looks like there's a race condition that leads to a failed rpc call never
> properly passing the request object to the new RpcConnectionImpl so things
> hang forever. RpcConnectionImpl objects are also kept alive longer than they
> should because of a shared_ptr cycle between them and the timeout tracking
> objects.
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