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Date: Tue, 14 May 2013 21:51:17 +0000 (UTC)
From: "kishore gopalakrishna (JIRA)" <jira@apache.org>
To: commits@helix.incubator.apache.org
Message-ID: <JIRA.12638585.1363983786231.319212.1368568277005@arcas>
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Subject: [jira] [Updated] (HELIX-71) Add jmx metric to emit the number of
 times rebalancer runs
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     [ 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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