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