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From "Siddharth Wagle (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-21898) Property provider in-memory maps are refreshed too slowly after config updates
Date Wed, 06 Sep 2017 21:12:00 GMT
Siddharth Wagle created AMBARI-21898:
----------------------------------------

             Summary: 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


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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