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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6300) Prevent multiple balancers from running simultaneously
Date Fri, 06 Jan 2017 00:53:59 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Junping Du updated HDFS-6300:
-----------------------------
    Fix Version/s: 2.8.0

> Prevent multiple balancers from running simultaneously
> ------------------------------------------------------
>
>                 Key: HDFS-6300
>                 URL: https://issues.apache.org/jira/browse/HDFS-6300
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer & mover
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>            Priority: Critical
>             Fix For: 2.8.0, 2.7.1, 3.0.0-alpha1
>
>         Attachments: HDFS-6300-001.patch, HDFS-6300-002.patch, HDFS-6300-003.patch, HDFS-6300-004.patch,
HDFS-6300-005.patch, HDFS-6300-006.patch, HDFS-6300.patch
>
>
> Javadoc of "Balancer.java" says, it will not allow to run second balancer if the first
one is in progress. But I've noticed multiple can run together and balancer.id implementation
is not safe guarding.
> {code}
>  * <li>Another balancer is running. Exiting...
> {code}



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