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https://issues.apache.org/jira/browse/HDFS-1910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176858#comment-13176858
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Hudson commented on HDFS-1910:
------------------------------
Integrated in Hadoop-Hdfs-22-branch #123 (See
[https://builds.apache.org/job/Hadoop-Hdfs-22-branch/123/])
Remove erroneously added file while commit to HDFS-1910.
HDFS-1910. NameNdoe should not save fsimage twice. Contributed by Konstantin
Shvachko.
Revert. Refers to wrong jira HDFS-1910.
HDFS-1910. NameNdoe should not save fsimage twice. Contributed by Konstantin
Shvachko.
shv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1225342
Files :
* /hadoop/common/branches/branch-0.22/hdfs/bin/hadoop
shv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1225337
Files :
* /hadoop/common/branches/branch-0.22/hdfs/CHANGES.txt
* /hadoop/common/branches/branch-0.22/hdfs/bin/hadoop
*
/hadoop/common/branches/branch-0.22/hdfs/src/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java
shv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1225336
Files :
* /hadoop/common/branches/branch-0.22/hdfs/CHANGES.txt
*
/hadoop/common/branches/branch-0.22/hdfs/src/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java
*
/hadoop/common/branches/branch-0.22/hdfs/src/test/hdfs/org/apache/hadoop/hdfs/server/namenode/TestBackupNode.java
shv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1225333
Files :
* /hadoop/common/branches/branch-0.22/hdfs/CHANGES.txt
*
/hadoop/common/branches/branch-0.22/hdfs/src/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java
*
/hadoop/common/branches/branch-0.22/hdfs/src/test/hdfs/org/apache/hadoop/hdfs/server/namenode/TestBackupNode.java
> when dfs.name.dir and dfs.name.edits.dir are same fsimage will be saved twice
> every time
> ----------------------------------------------------------------------------------------
>
> Key: HDFS-1910
> URL: https://issues.apache.org/jira/browse/HDFS-1910
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.21.0
> Reporter: Gokul
> Priority: Minor
> Labels: critical-0.22.0
> Fix For: 0.22.1
>
> Attachments: saveImageOnce-v0.22.patch
>
>
> when image and edits dir are configured same, the fsimage flushing from
> memory to disk will be done twice whenever saveNamespace is done. this may
> impact the performance of backupnode/snn where it does a saveNamespace during
> every checkpointing time.
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