[
https://issues.apache.org/jira/browse/HADOOP-9655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Allen Wittenauer updated HADOOP-9655:
-------------------------------------
Labels: BB2015-05-TBR (was: )
> Connection object in IPC Client can not run concurrently during connection
> time out
> -----------------------------------------------------------------------------------
>
> Key: HADOOP-9655
> URL: https://issues.apache.org/jira/browse/HADOOP-9655
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.0.4-alpha
> Reporter: Nemon Lou
> Labels: BB2015-05-TBR
> Attachments: HADOOP-9655.patch
>
>
> When one machine power off during running a job ,MRAppMaster find tasks timed
> out on that host and then call stop container for each container concurrently.
> But the IPC layer did it serially, for each call,the connection time out
> exception toke a few minutes to raise after 45 times reties. And AM hang for
> many hours to wait for stopContainer to finish.
> The jstack output file shows that most threads stuck at Connection.addCall
> waiting for a lock object hold by Connection.setupIOstreams.
> (The setupIOstreams method run slowlly becauseof connection time out during
> setupconnection.)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
