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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2731) HA: Autopopulate standby name dirs if they're empty
Date Tue, 13 Mar 2012 15:10:41 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13228424#comment-13228424
] 

Hudson commented on HDFS-2731:
------------------------------

Integrated in Hadoop-Hdfs-trunk #983 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/983/])
    HDFS-2731. Add command to bootstrap the Standby Node's name directories from the Active
NameNode. Contributed by Todd Lipcon. (Revision 1299807)

     Result = FAILURE
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1299807
Files : 
* /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/common/HdfsServerConstants.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.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/NNStorage.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.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/main/java/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/BootstrapStandby.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSck.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEditLog.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestBootstrapStandby.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/test/GenericTestUtils.java

                
> HA: Autopopulate standby name dirs if they're empty
> ---------------------------------------------------
>
>                 Key: HDFS-2731
>                 URL: https://issues.apache.org/jira/browse/HDFS-2731
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: ha
>    Affects Versions: 0.24.0
>            Reporter: Aaron T. Myers
>            Assignee: Todd Lipcon
>             Fix For: 0.24.0, 0.23.3
>
>         Attachments: hdfs-2731.txt, hdfs-2731.txt, hdfs-2731.txt
>
>
> To setup a SBN we currently format the primary then manually copy the name dirs to the
SBN. The SBN should do this automatically. Specifically, on NN startup, if HA with a shared
edits dir is configured and populated, if the SBN has empty name dirs it should downloads
the image and log from the primary (as an optimization it could copy the logs from the shared
dir). If the other NN is still in standby then it should fail to start as it does currently.

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