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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4814) Configurable DataXceiver thread stack size
Date Mon, 13 May 2013 20:53:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13656364#comment-13656364

Hadoop QA commented on HDFS-4814:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4388//console

This message is automatically generated.
> Configurable DataXceiver thread stack size
> ------------------------------------------
>                 Key: HDFS-4814
>                 URL: https://issues.apache.org/jira/browse/HDFS-4814
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h4814_20130510.patch, TestThreadStackSize.java
> By default, Java creates a thread with 512kB stack size.  In Datanode, we may have 4096
or more DataXceiver threads.  These threads do not require such large stack size and unnecessarily
occupy a large amount of memory.

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