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https://issues.apache.org/jira/browse/HDFS-4106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13485948#comment-13485948
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Hudson commented on HDFS-4106:
------------------------------
Integrated in Hadoop-Yarn-trunk #20 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/20/])
HDFS-4106. BPServiceActor#lastHeartbeat, lastBlockReport and
lastDeletedReport should be volatile. Contributed by Jing Zhao. (Revision
1403075)
Result = SUCCESS
suresh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1403075
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/datanode/BPServiceActor.java
> BPServiceActor#lastHeartbeat, lastBlockReport and lastDeletedReport should be
> declared as volatile
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-4106
> URL: https://issues.apache.org/jira/browse/HDFS-4106
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node, test
> Affects Versions: 3.0.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Priority: Minor
> Fix For: 3.0.0
>
> Attachments: HDFS-4106-trunk.001.patch, HDFS-4106-trunk.002.patch
>
>
> All these variables may be assigned/read by a testing thread (through
> BPServiceActor#triggerXXX) while also assigned/read by the actor thread. Thus
> they should be declared as volatile to make sure the "happens-before"
> consistency.
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