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Date: Thu, 12 Sep 2013 18:33:55 +0000 (UTC)
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Subject: [jira] [Commented] (ACCUMULO-1502) Add Trace Table docs to user
 manual
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    [ https://issues.apache.org/jira/browse/ACCUMULO-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13765747#comment-13765747 ] 

ASF subversion and git services commented on ACCUMULO-1502:
-----------------------------------------------------------

Commit cff5cc26debb9356aa6b744c5b39d14743c43eef in branch refs/heads/master from [~ecn]
[ https://git-wip-us.apache.org/repos/asf?p=accumulo.git;h=cff5cc2 ]

ACCUMULO-1502 adding Jared Winick's doc and examples

                
> Add Trace Table docs to user manual
> -----------------------------------
>
>                 Key: ACCUMULO-1502
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1502
>             Project: Accumulo
>          Issue Type: Sub-task
>          Components: docs, trace
>            Reporter: Sean Busbey
>             Fix For: 1.6.0
>
>         Attachments: ACCUMULO-1502.patch
>
>
> Our feature list includes:
> {quote}
> TRACING
> It can be difficult to determine why some operations are taking longer than expected. For example, you may be looking up items with very low latency, but sometimes the lookups take much longer. Determining the cause of the delay is difficult because the system is distributed, and the typical lookup is fast. Accumulo has been instrumented to record the time that various operations take when tracing is turned on. The fact that tracing is enabled follows all the requests made on behalf of the user throughout the distributed infrastructure of Accumulo, and across all threads of execution.
> {quote}
> and the user manual makes no mention of the facility, its defaults, how to configure it, nor how to leverage it in ops.

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