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https://issues.apache.org/jira/browse/HDFS-16888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17676017#comment-17676017
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ASF GitHub Bot commented on HDFS-16888:
---------------------------------------

hadoop-yetus commented on PR #5296:
URL: https://github.com/apache/hadoop/pull/5296#issuecomment-1380358113

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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Ubuntu-11.0.17+8-post-Ubuntu-1ubuntu220.04  |
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   | -0 :warning: |  checkstyle  |   0m 52s | 
[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5296/1/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
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   |||| _ Other Tests _ |
   | -1 :x: |  unit  | 297m 15s | 
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5296/1/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
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   |  |   | 414m 42s |  |  |
   
   
   | Reason | Tests |
   |-------:|:------|
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 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/5296 |
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   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5296/1/testReport/ |
   | Max. process+thread count | 3425 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5296/1/console |
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> 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
>
> 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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