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From "James Clampffer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10231) libhdfs++: Fix race conditions in RPC layer
Date Tue, 29 Mar 2016 21:20:25 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

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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