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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10768) Optimize mkdir ops
Date Thu, 25 Aug 2016 16:26:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15437169#comment-15437169
] 

Kihwal Lee commented on HDFS-10768:
-----------------------------------

The test failure was already reported in HDFS-10498. I've added the log and initial analysis
there.
[~daryn], please take care of the findbugs warning.

> 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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