[jira] [Updated] (AMBARI-3714) [perf] UI should only request data from master host-components

["Andrii Tkach (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-3714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrii Tkach updated AMBARI-3714:
---------------------------------

    Attachment: AMBARI-3714.patch

> [perf] UI should only request data from master host-components
> --------------------------------------------------------------
>
>                 Key: AMBARI-3714
>                 URL: https://issues.apache.org/jira/browse/AMBARI-3714
>             Project: Ambari
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 1.4.1
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>             Fix For: 1.4.2
>
>         Attachments: AMBARI-3714.patch
>
>
> When Ambari UI loads, we get services installed. To get information about the services, we ask for *all* host_components (master, worker, client, etc.) 
> {code}
> http://server:8080/api/v1/clusters/ga/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/dfs/FSNamesystem/HAState,components/host_components/metrics/dfs/FSNamesystem/CapacityUsed,components/host_components/metrics/dfs/FSNamesystem/CapacityTotal,components/host_components/metrics/dfs/FSNamesystem/CapacityRemaining,components/host_components/metrics/dfs/FSNamesystem/BlocksTotal,components/host_components/metrics/dfs/FSNamesystem/CorruptBlocks,components/host_components/metrics/dfs/FSNamesystem/MissingBlocks,components/host_components/metrics/dfs/FSNamesystem/UnderReplicatedBlocks,components/host_components/metrics/dfs/namenode/Version,components/host_components/metrics/dfs/namenode/LiveNodes,components/host_components/metrics/dfs/namenode/DeadNodes,components/host_components/metrics/dfs/namenode/DecomNodes,components/host_components/metrics/dfs/namenode/TotalFiles,components/host_components/metrics/dfs/namenode/UpgradeFinalized,components/host_components/metrics/dfs/namenode/Safemode,components/host_components/metrics/runtime/StartTime,components/host_components/metrics/flume/flume,components/host_components/metrics/yarn/Queue
> {code}
> However for services, only the master host-components are necessary. 
> UI should only get master host-components when loading Ambari. This means multiple things in API.
> * Service status {{ServiceInfo/state}} should be accurate based on the master host-component status
> * Host-components should have a property indicating what type of host-component they are (master/worker/client/etc.). 



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