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Date: Wed, 1 Feb 2012 04:24:58 +0000 (UTC)
From: "Uma Maheswara Rao G (Updated) (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HADOOP-7047) RPC client gets stuck
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     [ https://issues.apache.org/jira/browse/HADOOP-7047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uma Maheswara Rao G updated HADOOP-7047:
----------------------------------------

    Attachment: jstack.log
    
> RPC client gets stuck
> ---------------------
>
>                 Key: HADOOP-7047
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7047
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>             Fix For: 0.22.0
>
>         Attachments: jstack.log, trunkStuckClient.patch
>
>
> One of the dfs clients in our cluster stuck on waiting for a RPC result. However the IPC connection thread who is receiving the RPC result died on OOM error:
> INFO >> Exception in thread "IPC Client (47) connection to XX from root" java.lang.OutOfMemoryError: Java heap space
> INFO >> at java.util.Arrays.copyOfRange(Arrays.java:3209)
> INFO >> at java.lang.String.<init>(String.java:216)
> INFO >> at java.lang.StringBuffer.toString(StringBuffer.java:585)
> INFO >> at java.net.URI.toString(URI.java:1907)
> INFO >> at java.net.URI.<init>(URI.java:732)
> INFO >> at org.apache.hadoop.fs.Path.initialize(Path.java:137)
> INFO >> at org.apache.hadoop.fs.Path.<init>(Path.java:126)
> INFO >> at org.apache.hadoop.fs.FileStatus.readFields(FileStatus.java:206)
> INFO >> at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:237)
> INFO >> at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:171)
> INFO >> at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:219)
> INFO >> at org.apache.hadoop.io.ObjectWritable.readFields(ObjectWritable.java:66)
> INFO >> at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:531)
> INFO >> at org.apache.hadoop.ipc.Client$Connection.run(Client.java:466)

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