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Posted to common-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2014/01/29 21:12:49 UTC

[jira] [Resolved] (HADOOP-10233) RPC lacks output flow control

     [ https://issues.apache.org/jira/browse/HADOOP-10233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Lowe resolved HADOOP-10233.
---------------------------------

    Resolution: Duplicate

> RPC lacks output flow control
> -----------------------------
>
>                 Key: HADOOP-10233
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10233
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Priority: Critical
>
> The RPC layer has input flow control via the callq, however it lacks any output flow control.  A handler will try to directly send the response.  If the full response is not sent then it is queued for the background responder thread.  The RPC layer may end up queuing so many buffers that it "locks" up in GC.



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