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Posted to dev@ambari.apache.org by "Mahadev konar (JIRA)" <ji...@apache.org> on 2013/10/17 23:34:45 UTC
[jira] [Updated] (AMBARI-3017) Service metrics call latency
increases by a factor of 2 or 3 every 20-30 calls.
[ https://issues.apache.org/jira/browse/AMBARI-3017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mahadev konar updated AMBARI-3017:
----------------------------------
Fix Version/s: (was: 1.4.0)
1.4.2
Assignee: (was: Mahadev konar)
> Service metrics call latency increases by a factor of 2 or 3 every 20-30 calls.
> -------------------------------------------------------------------------------
>
> Key: AMBARI-3017
> URL: https://issues.apache.org/jira/browse/AMBARI-3017
> Project: Ambari
> Issue Type: Bug
> Components: client
> Affects Versions: 1.4.0
> Reporter: Srimanth Gunturi
> Labels: performance
> Fix For: 1.4.2
>
> Attachments: servicesGC.png
>
>
> Every 20-30 calls for service metrics, latency of the next 5 calls are a multiple of 2 or 3. This might be due to garbage collection. But basically in UI, the updates seem to take longer.
> The call UI makes is
> {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}
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