Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hdfs-issues@hadoop.apache.org
Date: Fri, 30 Aug 2013 00:01:52 +0000 (UTC)
From: "Jing Zhao (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12665969.1377712904253.57433.1377820912078@arcas>
In-Reply-To: <JIRA.12665969.1377712904253@arcas>
References: <JIRA.12665969.1377712904253@arcas>
Subject: [jira] [Updated] (HDFS-5140) Too many safemode monitor threads
 being created in the standby namenode causing it to fail with out of memory
 error
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/HDFS-5140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jing Zhao updated HDFS-5140:
----------------------------

    Attachment: HDFS-5140.002.patch

Update the patch to address Suresh's comment.
                
> Too many safemode monitor threads being created in the standby namenode causing it to fail with out of memory error
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5140
>                 URL: https://issues.apache.org/jira/browse/HDFS-5140
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ha
>    Affects Versions: 2.1.0-beta
>            Reporter: Arpit Gupta
>            Assignee: Jing Zhao
>            Priority: Blocker
>         Attachments: HDFS-5140.001.patch, HDFS-5140.002.patch
>
>
> While running namenode load generator with 100 threads for 10 mins namenode was being failed over ever 2 mins.
> The standby namenode shut itself down as it ran out of memory and was not able to create another thread.
> When we searched for 'Safe mode extension entered' in the standby log it was present 55000+ times

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira