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From "Siddharth Wagle (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-21898) Property provider in-memory maps are refreshed too slowly after config updates
Date Thu, 07 Sep 2017 01:48:00 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-21898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Siddharth Wagle updated AMBARI-21898:
-------------------------------------
    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Pushed to 2.6 and trunk.

> Property provider in-memory maps are refreshed too slowly after config updates
> ------------------------------------------------------------------------------
>
>                 Key: AMBARI-21898
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21898
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.0.0
>            Reporter: Siddharth Wagle
>            Assignee: Siddharth Wagle
>            Priority: Critical
>             Fix For: 2.6.0
>
>         Attachments: AMBARI-21898.patch
>
>
> Building the hostComponentMap map for ProviderModule seems does unnecessary computation
going through the ResourceProvider layer. On every configuration update, we call the reset
on these maps which takes a long time to refresh. Instead, relying on org.apache.ambari.server.state.cluster.ClusterImpl#serviceComponentHosts
will lead to faster computation without overhead like stale config calculations for every
SCH.



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