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https://issues.apache.org/jira/browse/HDFS-6243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13969608#comment-13969608
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Hudson commented on HDFS-6243:
------------------------------
SUCCESS: Integrated in Hadoop-Mapreduce-trunk #1758 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1758/])
HDFS-6243. HA NameNode transition to active or shutdown may leave lingering
image transfer thread. Contributed by Chris Nauroth. (cnauroth:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1587410)
* /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/TransferFsImage.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/StandbyCheckpointer.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/util/DataTransferThrottler.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestStandbyCheckpoints.java
> HA NameNode transition to active or shutdown may leave lingering image
> transfer thread.
> ---------------------------------------------------------------------------------------
>
> Key: HDFS-6243
> URL: https://issues.apache.org/jira/browse/HDFS-6243
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha, namenode
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Fix For: 3.0.0, 2.5.0
>
> Attachments: HDFS-6243.1.patch, HDFS-6243.2.patch
>
>
> With HDFS-4816, the standby uploads the new checkpoint to the active in a
> background thread. This thread may continue to execute after transitioning
> to active or shutting down. This is marginally wasteful of bandwidth if the
> image transfer is large, and it also breaks subsequent tests on Windows since
> the thread continues to hold a lock on a file descriptor in the storage
> directory.
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