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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10980) Optimize check for existence of parent directory
Date Fri, 07 Oct 2016 22:55:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15556513#comment-15556513
] 

Hudson commented on HDFS-10980:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10571 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/10571/])
HDFS-10980. Optimize check for existence of parent directory. (kihwal: rev e57fa81d9559a93d77fd724f7792326c31a490be)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSDirectory.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/FSDirMkdirOp.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirSymlinkOp.java


> Optimize check for existence of parent directory
> ------------------------------------------------
>
>                 Key: HDFS-10980
>                 URL: https://issues.apache.org/jira/browse/HDFS-10980
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 2.8.0, 3.0.0-alpha2
>
>         Attachments: HDFS-10980.patch
>
>
> {{FSDirectory.verifyParentDir()}} uses a {{Path}} object to parse and return the parent
path.  This is very expensive compared to using the path within the IIP.



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