hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6467) Performance improvement for liststatus on directories in hadoop archives.
Date Mon, 22 Feb 2010 22:44:28 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12836970#action_12836970

Tsz Wo (Nicholas), SZE commented on HADOOP-6467:

+1 the v2 patch looks good.

I will run wordcount on it to check the performance.

> Performance improvement for liststatus on directories in hadoop archives.
> -------------------------------------------------------------------------
>                 Key: HADOOP-6467
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6467
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Mahadev konar
>            Assignee: Mahadev konar
>             Fix For: 0.22.0
>         Attachments: Archives_performance.docx, Archives_performance.docx, HADOOP-6467-v2.patch,
HADOOP-6467-y.0.20-branch-v2.patch, HADOOP-6467-y0.20-branch.patch, HADOOP-6467.patch, HADOOP-6467.patch,
> A liststatus call on a directory in hadoop archives leads to ( 2* number of files in
directory) open calls to the namenode. This is very sub optimal and needs to be fixed to make
it performant enough to be used on a daily basis. 

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message