[ 
https://issues.apache.org/jira/browse/HDFS-4106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jing Zhao updated HDFS-4106:
----------------------------

    Attachment: HDFS-4106-trunk.002.patch

Updated based on Brandon's comments.
                
> 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, 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.

--
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

Reply via email to