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From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10429) DataStreamer interrupted warning always appears when using CLI upload file
Date Tue, 18 Oct 2016 16:24:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15585899#comment-15585899
] 

Wei-Chiu Chuang commented on HDFS-10429:
----------------------------------------

Hello, I'd like to invite anyone on the watch list to review the patch :)
[~jingzhao] would you be able to share how to reproduce the issue?

> DataStreamer interrupted warning  always appears when using CLI upload file
> ---------------------------------------------------------------------------
>
>                 Key: HDFS-10429
>                 URL: https://issues.apache.org/jira/browse/HDFS-10429
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.3
>            Reporter: Zhiyuan Yang
>            Assignee: Wei-Chiu Chuang
>            Priority: Minor
>         Attachments: HDFS-10429.1.patch, HDFS-10429.2.patch, HDFS-10429.3.patch
>
>
> Every time I use 'hdfs dfs -put' upload file, this warning is printed:
> {code:java}
> 16/05/18 20:57:56 WARN hdfs.DataStreamer: Caught exception
> java.lang.InterruptedException
> 	at java.lang.Object.wait(Native Method)
> 	at java.lang.Thread.join(Thread.java:1245)
> 	at java.lang.Thread.join(Thread.java:1319)
> 	at org.apache.hadoop.hdfs.DataStreamer.closeResponder(DataStreamer.java:871)
> 	at org.apache.hadoop.hdfs.DataStreamer.endBlock(DataStreamer.java:519)
> 	at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:696)
> {code}
> The reason is this: originally, DataStreamer::closeResponder always prints a warning
about InterruptedException; since HDFS-9812, DFSOutputStream::closeImpl  always forces threads
to close, which causes InterruptedException.
> A simple fix is to use debug level log instead of warning level.



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