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https://issues.apache.org/jira/browse/CHUKWA-330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12723779#action_12723779
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Ari Rabkin commented on CHUKWA-330:
-----------------------------------
Eric, Jerome -- both your suggestions involve significant changes to the
adaptor interface, as well as to the semantics of adaptor creation. The
biggest reason I wanted to fix this in the controller is that it's a very small
change -- the patch only changes a handful of lines.
How would you feel about doing the controller fix in 0.2, and something more
principled for trunk?
> 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.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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