Madhan Neethiraj created RANGER-3951:
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Summary: optimize memory used for tags in plugins and server
Key: RANGER-3951
URL: https://issues.apache.org/jira/browse/RANGER-3951
Project: Ranger
Issue Type: Improvement
Components: admin, plugins
Reporter: Madhan Neethiraj
Assignee: Madhan Neethiraj
In deployments using large number of tags, significant amount of memory usage
can be reduced by:
* cache has as many instances of a tag as the number of resource associations.
Enabling dedup of tags eliminates duplicate tag instances
* not initializing few collection members with new collection instances (Map,
List) - as much as 25% of memory needed to cache tags
* skipping serialization of empty collections can reduce the size of the JSON
downloaded to plugin
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