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Posted to dev@ambari.apache.org by "Yusaku Sako (JIRA)" <ji...@apache.org> on 2013/02/22 04:54:14 UTC

[jira] [Updated] (AMBARI-1460) Optimize query call for retrieving host information

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

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

    Summary: Optimize query call for retrieving host information  (was: Optmize query call for retrieving host information)
    
> Optimize 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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