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https://issues.apache.org/jira/browse/AMBARI-21898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Wagle updated AMBARI-21898:
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Attachment: AMBARI-21898.patch
> 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, 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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