Comment 86 for bug 1719236

Reviewed: https://review.opencontrail.org/44207
Committed: http://github.com/Juniper/contrail-analytics/commit/9abcdec4c72d86d7a2e345b1611d6ef8cf137bb8
Submitter: Zuul v3 CI (<email address hidden>)
Branch: master

commit 9abcdec4c72d86d7a2e345b1611d6ef8cf137bb8
Author: zcui <email address hidden>
Date: Thu Jun 21 16:17:06 2018 -0700

Add new config option use_aggregated_uve_db

Provide an option to enable/disable serve UVE queries from the aggregated
UVE db. In a scale setup, HA event (alarm-gen down), alarm-gen may take a
long time to aggregate the UVEs depending on the number of UVEs, number
of partitions it owns, etc., So, enabling this option would reduce the
down time in case of HA events (collector down - time taken for generators
to connect to the new collector and resync the UVEs, alarm-gen down - no
impact on UVE queries, only the alarms would be reevaluated)

For R5.0, we delete the way to read from DB7, and read from DB1 directly

Change-Id: I064a5d38d8ae04770e033251ab12ee7b329054cc
Closes-Bug: #1719236