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Posted to issues@ambari.apache.org by "Jonathan Hurley (JIRA)" <ji...@apache.org> on 2016/09/27 15:42:20 UTC
[jira] [Created] (AMBARI-18475) Remove Global Cluster Lock Shared
Between Business Objects
Jonathan Hurley created AMBARI-18475:
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Summary: Remove Global Cluster Lock Shared Between Business Objects
Key: AMBARI-18475
URL: https://issues.apache.org/jira/browse/AMBARI-18475
Project: Ambari
Issue Type: Task
Components: ambari-server
Affects Versions: 2.5.0
Reporter: Jonathan Hurley
Assignee: Jonathan Hurley
Priority: Critical
Fix For: 2.5.0
Remove shared instances of the shared {{ReadWriteLock}} found in {{ClusterImpl}}. For now, the lock can remain private and full encapsulated inside of {{ClusterImpl}}, but it's use and reference across the rest of Ambari should be removed.
This is part of the effort to refactor/remove the (mostly) unnecessary locks in memory. The shared instance of this lock is the number one reason that Ambari "deadlocks" when under load.
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