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https://issues.apache.org/jira/browse/HDFS-16888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17682814#comment-17682814
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ASF GitHub Bot commented on HDFS-16888:
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haiyang1987 commented on PR #5296:
URL: https://github.com/apache/hadoop/pull/5296#issuecomment-1411364291
Thanks @tomscut @tasanuma help me review and merge.
> BlockManager#maxReplicationStreams, replicationStreamsHardLimit,
> blocksReplWorkMultiplier and PendingReconstructionBlocks#timeout should be
> volatile
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-16888
> URL: https://issues.apache.org/jira/browse/HDFS-16888
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 3.3.9
>
>
> BlockManager#maxReplicationStreams, replicationStreamsHardLimit,
> blocksReplWorkMultiplier and PendingReconstructionBlocks#timeout these
> variables may be writen by NameNode#reconfReplicationParameters then while
> read by the other threads.
> Thus they should be declared as volatile to make sure the "happens-before"
> consistency.
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