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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9121) Update HTrace to 2.00 and add new example usage.
Date Thu, 08 Aug 2013 21:30:48 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13734019#comment-13734019
] 

Elliott Clark commented on HBASE-9121:
--------------------------------------

[~ndimiduk] Twitter does have something that's like htrace that will instrument threads and
rpc requests.  However it's scala specific, and targeted only at Finagle with thrift. [1]
 So it's not really something that we can use.  HTrace is great because it's all java, has
very few dependencies that we don't already use and is pretty easy to rev quickly if needed
( [~tlipcon] and I both have perms ).

1. https://github.com/twitter/finagle/tree/master/finagle-zipkin/src/main
                
> Update HTrace to 2.00 and add new example usage.
> ------------------------------------------------
>
>                 Key: HBASE-9121
>                 URL: https://issues.apache.org/jira/browse/HBASE-9121
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.95.1
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 0.98.0, 0.95.2
>
>         Attachments: HBASE-9121-0.patch, HBASE-9121-PRE.patch, Zipkin   Trace c49e8c79b9555d62.png
>
>
> Update HTrace to 2.00.  This adds maven modularization so the client doesn't need all
of HTraces dependencies.
> Also while changing to the new api I added some new very small ammounts of tracing around
ZK and HFileReaderv2.

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