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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6480) Move waitForReady() from FSDirectory to FSNamesystem
Date Thu, 19 Jun 2014 05:02:24 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14036966#comment-14036966
] 

Hudson commented on HDFS-6480:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #5732 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/5732/])
HDFS-6480. Move waitForReady() from FSDirectory to FSNamesystem. Contributed by Haohui Mai.
(wheat9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1603705)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/Checkpointer.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/SecondaryNameNode.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestCommitBlockSynchronization.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSDirectory.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSNamesystem.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsLimits.java


> Move waitForReady() from FSDirectory to FSNamesystem
> ----------------------------------------------------
>
>                 Key: HDFS-6480
>                 URL: https://issues.apache.org/jira/browse/HDFS-6480
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>             Fix For: 2.5.0
>
>         Attachments: HDFS-6480.000.patch, HDFS-6480.001.patch, HDFS-6480.002.patch, HDFS-6480.003.patch,
HDFS-6480.004.patch, HDFS-6480.005.patch
>
>
> Currently FSDirectory implements a barrier in {{waitForReady()}} / {{setReady()}} so
that it only serve requests once the FSImage is fully loaded.
> As a part of the effort to evolve {{FSDirectory}} to a class which focuses on implementing
the data structure of the namespace, this jira proposes to move the barrier one level higher
to {{FSNamesystem}}.



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