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From "kishore gopalakrishna (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HELIX-71) Add jmx metric to emit the number of times rebalancer runs
Date Tue, 14 May 2013 21:51:17 GMT

     [ https://issues.apache.org/jira/browse/HELIX-71?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

kishore gopalakrishna updated HELIX-71:

    Fix Version/s: 0.6.2-incubating
> Add jmx metric to emit the number of times rebalancer runs
> ----------------------------------------------------------
>                 Key: HELIX-71
>                 URL: https://issues.apache.org/jira/browse/HELIX-71
>             Project: Apache Helix
>          Issue Type: Improvement
>            Reporter: kishore gopalakrishna
>            Assignee: Shi Lu
>             Fix For: 0.6.2-incubating
> Either due to bug in code or some configuration problem, rebalancer might be triggered
infinitely and the resource may not reach a stable state. We need to ensure that the bug does
not cause further damage to the system. We should be able to detect this automatically and
throttle the number of times rebalancer runs in a minute.
> The first step towards this would be so simply add a jmx metrics to count the number
of times a rebalancer runs.

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