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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5995) TestFSEditLogLoader#testValidateEditLogWithCorruptBody gets OutOfMemoryError and dumps heap.
Date Fri, 21 Feb 2014 22:59:20 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5995?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Nauroth updated HDFS-5995:
--------------------------------

    Attachment: HDFS-5995.1.patch

This patch puts a soft cap on the size of the array that we pre-allocate in the loader.  I
call it a soft cap, because it's still an {{ArrayList}} capable of growing dynamically.  This
has eliminated the heap dumps in my environment.

It seems a shame to have to change the main loader code to accommodate the test, but I haven't
been able to come up with an alternative fix in the test code.

> TestFSEditLogLoader#testValidateEditLogWithCorruptBody gets OutOfMemoryError and dumps
heap.
> --------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5995
>                 URL: https://issues.apache.org/jira/browse/HDFS-5995
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: namenode, test
>    Affects Versions: 3.0.0
>            Reporter: Chris Nauroth
>            Priority: Minor
>         Attachments: HDFS-5995.1.patch
>
>
> {{TestFSEditLogLoader#testValidateEditLogWithCorruptBody}} is experiencing {{OutOfMemoryError}}
and dumping heap since the merge of HDFS-4685.  This doesn't actually cause the test to fail,
because it's a failure test that corrupts an edit log intentionally.  Still, this might cause
confusion if someone reviews the build logs and thinks this is a more serious problem.



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