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https://issues.apache.org/jira/browse/HDFS-15416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17148250#comment-17148250
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jianghua zhu commented on HDFS-15416:
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[~elgoiri] , the contents of HDFS-15416.001.patch and PR are the same.
Can mainly focus on the content of HDFS-15416.001.patch.
Thanks a lot.
> Improve DataStorage#addStorageLocations() for empty locations
> -------------------------------------------------------------
>
> Key: HDFS-15416
> URL: https://issues.apache.org/jira/browse/HDFS-15416
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.1.0, 3.1.1
> Reporter: jianghua zhu
> Assignee: jianghua zhu
> Priority: Major
> Attachments: HDFS-15416.000.patch, HDFS-15416.001.patch
>
>
> SuccessLocations content is an array, when the number is 0, do not need to be
> executed again loadBlockPoolSliceStorage ().
> code :
> try
> {
> final List<StorageLocation> successLocations = loadDataStorage( datanode,
> nsInfo, dataDirs, startOpt, executor);
> return loadBlockPoolSliceStorage( datanode, nsInfo, successLocations,
> startOpt, executor); }
> finally
> { executor.shutdown(); }
>
>
>
>
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