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https://issues.apache.org/jira/browse/HDFS-1836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13033466#comment-13033466
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Bharath Mundlapudi commented on HDFS-1836:
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Thats correct. This code is part of trunk already.
Todd, One minor comment.
1. Can we also pass LOG object to this method? Users who wants to debug can
enable debug option.
IOUtils.cleanup(LOG, blockStream, blockReplyStream);
Otherwise, patch looks good. Thank you.
> Thousand of CLOSE_WAIT socket
> ------------------------------
>
> Key: HDFS-1836
> URL: https://issues.apache.org/jira/browse/HDFS-1836
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 0.20.2
> Environment: Linux 2.6.18-194.32.1.el5 #1 SMP Wed Jan 5 17:52:25 EST
> 2011 x86_64 x86_64 x86_64 GNU/Linux
> java version "1.6.0_23"
> Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
> Java HotSpot(TM) 64-Bit Server VM (build 19.0-b09, mixed mode)
> Reporter: Dennis Cheung
> Attachments: hdfs-1836-0.20.txt, patch-draft-1836.patch
>
>
> $ /usr/sbin/lsof -i TCP:50010 | grep -c CLOSE_WAIT
> 4471
> It is better if everything runs normal.
> However, from time to time there are some "DataStreamer Exception:
> java.net.SocketTimeoutException" and "DFSClient.processDatanodeError(2507) |
> Error Recovery for" can be found from log file and the number of CLOSE_WAIT
> socket just keep increasing
> The CLOSE_WAIT handles may remain for hours and days; then "Too many open
> file" some day.
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