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https://issues.apache.org/jira/browse/CHUKWA-74?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12738788#action_12738788
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Ari Rabkin commented on CHUKWA-74:
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I think that the serialization failure is a real error -- the serialization 
happens before we ever start talking to the collector; if it throws an 
exception, that's a bug.  So I think that should be logged with stack trace.

> Agent shouldn't log exceptions for down collectors
> --------------------------------------------------
>
>                 Key: CHUKWA-74
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-74
>             Project: Hadoop Chukwa
>          Issue Type: Improvement
>          Components: input tools
>    Affects Versions: 0.3.0
>            Reporter: Mac Yang
>            Assignee: rushin barot
>            Priority: Minor
>             Fix For: 0.3.0
>
>         Attachments: HttpSender.patch
>
>
> To reduce the agent log volume, it should only log that it failed to connect 
> to a collector at the ERROR level and log the exception and stack trace to 
> DEBUG level.

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