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https://issues.apache.org/jira/browse/HDFS-10768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee updated HDFS-10768:
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Status: Patch Available (was: Open)
> Optimize mkdir ops
> ------------------
>
> Key: HDFS-10768
> URL: https://issues.apache.org/jira/browse/HDFS-10768
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-10768.patch
>
>
> Directory creation causes excessive object allocation: ex. an immutable list
> builder, containing the string of components converted from the IIP's
> byte[]s, sublist views of the string list, iterable, followed by string to
> byte[] conversion. This can all be eliminated by accessing the component's
> byte[] in the IIP.
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