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From "Yusaku Sako (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-1460) Optmize query call for retrieving host information
Date Thu, 21 Feb 2013 04:32:14 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-1460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yusaku Sako updated AMBARI-1460:
--------------------------------

    Affects Version/s:     (was: 1.2.2)
                       1.2.0
    
> Optmize query call for retrieving host information
> --------------------------------------------------
>
>                 Key: AMBARI-1460
>                 URL: https://issues.apache.org/jira/browse/AMBARI-1460
>             Project: Ambari
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 1.2.0
>            Reporter: Yusaku Sako
>            Assignee: Yusaku Sako
>             Fix For: 1.2.2
>
>         Attachments: AMBARI-1460-2.patch, AMBARI-1460.patch
>
>
> Every 15 seconds, Ambari Web makes a call to retrieve information about all hosts in
the cluster. With 400+ nodes, this call retrieves about 10MB of info, since the API returns
last_agent_env, which is host check results used during bootstrap and makes the payload huge.
> By optimizing the query string for this API call, we can cut down on the payload by more
than 90%.

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