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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-330) controller should not create duplicates for adaptors with offsets
Date Thu, 25 Jun 2009 01:21:07 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12723847#action_12723847
] 

Eric Yang commented on CHUKWA-330:
----------------------------------

+1, thanks Ari for addressing these issues with lots of patients. :)

CHUKWA-330 is good for chukwa 0.2 branch.
CHUKWA-330-big-1 is good for trunk for additional bake time.

> controller should not create duplicates for adaptors with offsets
> -----------------------------------------------------------------
>
>                 Key: CHUKWA-330
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-330
>             Project: Hadoop Chukwa
>          Issue Type: Bug
>          Components: input tools
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>            Priority: Blocker
>             Fix For: 0.2.0, 0.3.0
>
>         Attachments: CHUKWA-330-big-1.patch, CHUKWA-330-big.patch, CHUKWA-330.patch
>
>   Original Estimate: 1.5h
>  Remaining Estimate: 1.5h
>
> The offset-of-first-byte param to FileTailingAdaptor is hashed into the default adaptor
name.  This changes the semantics of adaptor uniqueness, and broke metrics and the log4jappender.
> Proposed fix:
>   Add a new "addByName()" method to ChukwaAgentController that lets callers specify names.
 
>   Use this new method whenever finer control of adaptor uniqueness is needed.

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