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Date: Tue, 2 Feb 2016 16:04:39 +0000 (UTC)
From: "Rakesh R (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-7708) Balancer should delete its pid file
 when it completes rebalance
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     [ https://issues.apache.org/jira/browse/HDFS-7708?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rakesh R updated HDFS-7708:
---------------------------
    Attachment: HDFS-7708-002.patch

> Balancer should delete its pid file when it completes rebalance
> ---------------------------------------------------------------
>
>                 Key: HDFS-7708
>                 URL: https://issues.apache.org/jira/browse/HDFS-7708
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer & mover
>    Affects Versions: 2.6.0
>            Reporter: Akira AJISAKA
>            Assignee: Rakesh R
>         Attachments: HDFS-7708-002.patch, HDFS-7708.patch
>
>
> When balancer completes rebalance and exits, it does not delete its pid file. Starting balancer again, then "kill -0 pid" to confirm the balancer process is not running.
> The problem is: If another process is running as the same pid as `cat pidfile`, balancer fails to start with following message:
> {code}
>   balancer is running as process 3443. Stop it first.
> {code}


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