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https://issues.apache.org/jira/browse/HDFS-10768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15439836#comment-15439836
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Hudson commented on HDFS-10768:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10357 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10357/])
HDFS-10768. Optimize mkdir ops. Contributed by Daryn Sharp. (kihwal: rev
8b7adf4ddf420a93c586c4b2eac27dd0f649682e)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestSnapshotPathINodes.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirWriteFileOp.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodesInPath.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirSymlinkOp.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirMkdirOp.java
> 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
> Fix For: 2.9.0, 3.0.0-alpha2
>
> Attachments: HDFS-10768.1.patch, 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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