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From "Ding Yuan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6144) Failing to delete balancer.id in close could prevent balancer from starting the next time
Date Thu, 10 Apr 2014 11:50:30 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13965256#comment-13965256
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Ding Yuan commented on HDFS-6144:
---------------------------------

Ping. Is there anything else I can help from my side?

> Failing to delete balancer.id in close could prevent balancer from starting the next
time
> -----------------------------------------------------------------------------------------
>
>                 Key: HDFS-6144
>                 URL: https://issues.apache.org/jira/browse/HDFS-6144
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.2.0
>            Reporter: Ding Yuan
>
> Line: 215, File: "org/apache/hadoop/hdfs/server/balancer/NameNodeConnector.java"
> {noformat}
> 199: void close() {
> 212:       try {
> 213:         fs.delete(BALANCER_ID_PATH, true);
> 214:       } catch(IOException ioe) {
> 215:         LOG.warn("Failed to delete " + BALANCER_ID_PATH, ioe);
> 216:       }
> {noformat}
> If the FS cannot delete this file for some reason, it will prevent any balancers from
running in the future. Should at least retry in this case (or warn the users about this and
suggesting them to manually delete this file)?



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