[jira] [Created] (HDFS-4106) BPServiceActor#lastHeartbeat, lastBlockReport and lastDeletedReport should be declared as volatile

[Jing Zhao (JIRA)]

Jing Zhao created HDFS-4106:
-------------------------------

             Summary: 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
    Affects Versions: 3.0.0
            Reporter: Jing Zhao
            Assignee: Jing Zhao
            Priority: Minor
         Attachments: HDFS-4106-trunk.001.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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira