You are viewing a plain text version of this content. The canonical link for it is here.

Posted to hdfs-issues@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2015/12/17 17:46:46 UTC

[jira] [Created] (HDFS-9572) Prevent DataNode log spam if a client connects on the data transfer port but sends no data.

Chris Nauroth created HDFS-9572:
-----------------------------------

             Summary: Prevent DataNode log spam if a client connects on the data transfer port but sends no data.
                 Key: HDFS-9572
                 URL: https://issues.apache.org/jira/browse/HDFS-9572
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode
            Reporter: Chris Nauroth
            Assignee: Chris Nauroth


Monitoring tools may choose to check liveness of the DataNode's data transfer port by connecting to it.  The monitoring tool will close the connection immediately after establishment without sending any data.  When this happens, the DataNode encounters an unexpected EOF and logs a full stack trace.  This creates unneeded noise in the logs.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)