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Date: Thu, 7 Nov 2013 15:59:17 +0000 (UTC)
From: "Andrii Tkach (JIRA)" <jira@apache.org>
To: ambari-dev@incubator.apache.org
Message-ID: <JIRA.12678006.1383839631855.35326.1383839956996@arcas>
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Subject: [jira] [Updated] (AMBARI-3714) [perf] UI should only request data
 from master host-components
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     [ https://issues.apache.org/jira/browse/AMBARI-3714?page=3Dcom.atlassi=
an.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment:     (was: 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, et=
c.)=20
> {code}
> http://server:8080/api/v1/clusters/ga/services?fields=3Dcomponents/Servic=
eComponentInfo,components/host_components,components/host_components/HostRo=
les,components/host_components/metrics/jvm/memHeapUsedM,components/host_com=
ponents/metrics/jvm/memHeapCommittedM,components/host_components/metrics/ma=
pred/jobtracker/trackers_decommissioned,components/host_components/metrics/=
cpu/cpu_wio,components/host_components/metrics/rpc/RpcQueueTime_avg_time,co=
mponents/host_components/metrics/dfs/FSNamesystem/HAState,components/host_c=
omponents/metrics/dfs/FSNamesystem/CapacityUsed,components/host_components/=
metrics/dfs/FSNamesystem/CapacityTotal,components/host_components/metrics/d=
fs/FSNamesystem/CapacityRemaining,components/host_components/metrics/dfs/FS=
Namesystem/BlocksTotal,components/host_components/metrics/dfs/FSNamesystem/=
CorruptBlocks,components/host_components/metrics/dfs/FSNamesystem/MissingBl=
ocks,components/host_components/metrics/dfs/FSNamesystem/UnderReplicatedBlo=
cks,components/host_components/metrics/dfs/namenode/Version,components/host=
_components/metrics/dfs/namenode/LiveNodes,components/host_components/metri=
cs/dfs/namenode/DeadNodes,components/host_components/metrics/dfs/namenode/D=
ecomNodes,components/host_components/metrics/dfs/namenode/TotalFiles,compon=
ents/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,component=
s/host_components/metrics/yarn/Queue
> {code}
> However for services, only the master host-components are necessary.=20
> 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 ma=
ster host-component status
> * Host-components should have a property indicating what type of host-com=
ponent they are (master/worker/client/etc.).=20


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