[jira] [Commented] (HBASE-9121) Update HTrace to 2.00 and add new example usage.

["Elliott Clark (JIRA)" <ji...@apache.org>]

    [ 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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira