You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-issues@hadoop.apache.org by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org> on 2015/09/01 01:26:45 UTC

[jira] [Updated] (HADOOP-11506) Configuration variable expansion regex expensive for long values

     [ https://issues.apache.org/jira/browse/HADOOP-11506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated HADOOP-11506:
---------------------------------------------
    Fix Version/s: 2.6.1

Pulled this into 2.6.1 after [~ajisakaa] verified that the patch applies cleanly. (The 2.7 patch itself departed a bit from trunk). Ran compilation and TestConfiguration before the push.

> Configuration variable expansion regex expensive for long values
> ----------------------------------------------------------------
>
>                 Key: HADOOP-11506
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11506
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>            Reporter: Dmitriy V. Ryaboy
>            Assignee: Gera Shegalov
>              Labels: 2.6.1-candidate
>             Fix For: 2.6.1, 2.7.0
>
>         Attachments: HADOOP-11506.001.patch, HADOOP-11506.002.patch, HADOOP-11506.003.patch, HADOOP-11506.004.patch
>
>
> Profiling several large Hadoop jobs, we discovered that a surprising amount of time was spent inside Configuration.get, more specifically, in regex matching caused by the substituteVars call.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)