Mailing-List: contact hadoop-dev-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hadoop-dev@lucene.apache.org
Message-ID: <2484783.1184961006588.JavaMail.jira@brutus>
Date: Fri, 20 Jul 2007 12:50:06 -0700 (PDT)
From: "Hairong Kuang (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Commented: (HADOOP-1545) Maps hang when using native
 compression library to compress map out
In-Reply-To: <14484499.1183074184447.JavaMail.jira@brutus>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HADOOP-1545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12514303 ] 

Hairong Kuang commented on HADOOP-1545:
---------------------------------------

+1

> Maps hang when using native compression library to compress map out
> -------------------------------------------------------------------
>
>                 Key: HADOOP-1545
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1545
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.13.0
>            Reporter: Hairong Kuang
>            Assignee: Arun C Murthy
>            Priority: Blocker
>             Fix For: 0.15.0
>
>
> This issue is related to HADOOP-1193. I ran the same job. Each map of this job spawns a process which generates output to be cosumed by the map. The new native compression librar seems to hang some of the spawned processes. Some processes print using more than 100% CPU. Non-native library does not produce this problem.

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