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From "Manukranth Kolloju (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12630) Provide capability for dropping malfunctioning ConfigurationObserver automatically
Date Wed, 10 Dec 2014 01:45:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240494#comment-14240494

Manukranth Kolloju commented on HBASE-12630:

This problem wasn't observed in any prod system of ours. [~tedyu] suggested that it would
be nice to have to handle the cases where the observers might hit an exception and stay in
that case. This was a speculative case, but the idea wasn't bad. But, the priority of the
Jira should have not been MAJOR/MINOR. I took a look at the patch, I don't really think that
we should be storing this extra map for the sake of a speculative case. 

> Provide capability for dropping malfunctioning ConfigurationObserver automatically
> ----------------------------------------------------------------------------------
>                 Key: HBASE-12630
>                 URL: https://issues.apache.org/jira/browse/HBASE-12630
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ashish Singhi
>            Priority: Minor
>             Fix For: 1.0.0, 2.0.0
>         Attachments: HBASE-12630-v2.patch, HBASE-12630-v3.patch, HBASE-12630.patch
> Chatting with Manukranth, online config update feature should handle the case where certain
ConfigurationObserver(s) constantly produce exception when notified of config update.
> We can handle such ConfigurationObserver by sidelining it after configurable number of
exceptions seen from the ConfigurationObserver.

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