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Posted to hdfs-dev@hadoop.apache.org by "fanluo (Jira)" <ji...@apache.org> on 2023/01/29 12:18:00 UTC

[jira] [Created] (HDFS-16897) fix abundant Broken pipe exception in BlockSender

fanluo created HDFS-16897:
-----------------------------

             Summary: fix abundant Broken pipe exception in BlockSender
                 Key: HDFS-16897
                 URL: https://issues.apache.org/jira/browse/HDFS-16897
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs
    Affects Versions: 3.3.4
            Reporter: fanluo


in our production cluster env , we found some exception in datanode logs，its frequently print below error
in HDFS-2054 we only ignored message starting with `Broken pipe`  which may not enough for the following case:
!https://user-images.githubusercontent.com/20748856/215264829-5f16dbc3-fea2-4883-a3d6-ded367564b8c.png!
this situation look like related to short-circuit read. in HDFS-4354 the error has been wrapped, so that our previous judgment conditions are invalid.
!https://user-images.githubusercontent.com/20748856/215314257-2064637b-ea46-42f5-b53f-a29e68bb50ea.png!
maybe we can improve it. 



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