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https://issues.apache.org/jira/browse/AMBARI-3086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Srimanth Gunturi updated AMBARI-3086:
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Attachment: Screen Shot 2013-09-03 at 5.21.43 PM.png
> Services API call with metrics takes 30% longer with all services started
> -------------------------------------------------------------------------
>
> Key: AMBARI-3086
> URL: https://issues.apache.org/jira/browse/AMBARI-3086
> Project: Ambari
> Issue Type: Task
> Components: controller
> Affects Versions: 1.4.0
> Reporter: Srimanth Gunturi
> Labels: performance
> Attachments: Screen Shot 2013-09-03 at 5.21.43 PM.png
>
>
> I stopped all the services and started invoking the /services endpoint. While
> that was looping, I invoked the 'Start all services' call. The time being
> taken by the same call increased now by over 30%.
> The exact /services call made was
> {noformat}
> /api/v1/clusters/${cluster}/services?fields=components/ServiceComponentInfo,components/host_components,components/host_components/HostRoles,components/host_components/metrics/jvm/memHeapUsedM,components/host_components/metrics/jvm/memHeapCommittedM,components/host_components/metrics/mapred/jobtracker/trackers_decommissioned,components/host_components/metrics/cpu/cpu_wio,components/host_components/metrics/rpc/RpcQueueTime_avg_time,components/host_components/metrics/flume/flume,components/host_components/metrics/yarn/Queue
> {noformat}
> Time measurements in milliseconds:
> {noformat}
> /services All Stopped All Started
> Total Time 2100.704545 2926.313725
> Latency Time 2048.295455 2838.764706
> Transfer Time 52.40909091 87.54901961
> Data size (bytes) 825555 1371548
> {noformat}
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