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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7054) Make DFSOutputStream tracing more fine-grained
Date Tue, 17 Mar 2015 19:04:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14365801#comment-14365801
] 

Colin Patrick McCabe commented on HDFS-7054:
--------------------------------------------

The "new" findbugs warnings are all from YARN, which is not changed in this patch:
{code}
IS	Inconsistent synchronization of org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationFileLoaderService.reloadListener;
locked 50% of time
IS	Inconsistent synchronization of org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.allocConf;
locked 80% of time
IS	Inconsistent synchronization of org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.fsOpDurations;
locked 66% of time
IS	Inconsistent synchronization of org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.updateInterval;
locked 75% of time
{code}
similarly none of the "new warnings" are in files changed by this patch, so they seem like
false positive.

> Make DFSOutputStream tracing more fine-grained
> ----------------------------------------------
>
>                 Key: HDFS-7054
>                 URL: https://issues.apache.org/jira/browse/HDFS-7054
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>    Affects Versions: 2.6.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-7054.001.patch, HDFS-7054.002.patch
>
>




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