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Posted to dev@bookkeeper.apache.org by "Jiannan Wang (JIRA)" <ji...@apache.org> on 2013/09/14 10:51:52 UTC

[jira] [Commented] (BOOKKEEPER-684) ZK logging is oververbose, can cause oom in tests

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13767419#comment-13767419 ] 

Jiannan Wang commented on BOOKKEEPER-684:
-----------------------------------------

With this change, the log file size of GcLedgersTest reduces from 19M to 49K.
                
> ZK logging is oververbose, can cause oom in tests
> -------------------------------------------------
>
>                 Key: BOOKKEEPER-684
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-684
>             Project: Bookkeeper
>          Issue Type: Bug
>            Reporter: Ivan Kelly
>            Assignee: Jiannan Wang
>            Priority: Trivial
>             Fix For: 4.2.2
>
>         Attachments: BOOKKEEPER-684.patch
>
>
> Some tests, GcLedgerTests for example, create a lot of ledgers (30k) which causes a lot of zk writes. This causes a lot of zk logging, which can fill the log buffer and cause an oom when you're running with very little memory.
> Fix is trivial. zk should be set to only log at error level in log4j.properties.

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