Avoid recursive audit log in Elasticsearch Plugin by user "elasticsearch" when plugin is enabled for ranger_audit index.
When Elasticsearch Plugin in enabled in the index "ranger_audits" ( ranger's audit log index), there will be recursive audit log getting generated for audits logs that are getting in this collection.
This JIRA will address
1) recursive audit log done by service user "elasticsearch" in the ranger_audit index.
2) provide a configuration parameter to add service users to exclude from audit log for "ranger_audit" index. This is in case if customer users are used as service user in Elasticsearch process.