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https://issues.apache.org/jira/browse/HADOOP-9460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13625541#comment-13625541
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Suresh Srinivas commented on HADOOP-9460:
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Eugene, I agree that some additional debug logs would be helpful. However the
existing patch has too many debug logs, almost like code added during debug. A
lot of the logs seems redundant. Could you please remove the ones that are
redundant and where possible consolidate multiple logs into a single one.
> Add additional diagnostic logging in DiskChecker::mkdirsWithExistsCheck()
> -------------------------------------------------------------------------
>
> Key: HADOOP-9460
> URL: https://issues.apache.org/jira/browse/HADOOP-9460
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Eugene Koontz
> Assignee: Eugene Koontz
> Priority: Minor
> Attachments: HDFS-4668.patch
>
>
> While working on debugging a job, I had some need to understand how
> mkdirsWithExistsCheck() works. It's a bit complex so I added some logging
> statements at DEBUG level to understand what was going on. I also added an
> ERROR-level message if a directory cannot be created.
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