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https://issues.apache.org/jira/browse/HDFS-10231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Clampffer updated HDFS-10231:
-----------------------------------
    Status: Patch Available  (was: Open)

> 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
>         Attachments: HDFS-10231.HDFS-8707.000.patch, 
> HDFS-10231.HDFS-8707.001.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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