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

Posted to hdfs-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2014/10/08 21:44:34 UTC

[jira] [Created] (HDFS-7213) processIncrementalBlockReport performance degradation

Daryn Sharp created HDFS-7213:
---------------------------------

             Summary: processIncrementalBlockReport performance degradation
                 Key: HDFS-7213
                 URL: https://issues.apache.org/jira/browse/HDFS-7213
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 2.4.0
            Reporter: Daryn Sharp
            Assignee: Eric Payne
            Priority: Critical


{{BlockManager#processIncrementalBlockReport}} has a debug line that is missing a {{isDebugEnabled}} check.  The write lock is being held.  Coupled with the increase in incremental block reports from receiving blocks, under heavy load this log line noticeably degrades performance.



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