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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:
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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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