Damian Dabrowski 210cfc5f8f Database connection pooling improvements
- Implemented new variable ``connection_recycle_time`` responsible for SQLAlchemy's connection recycling
- Set new default values for db pooling variables which are inherited from the global ones.

Depends-On: https://review.opendev.org/c/openstack/openstack-ansible/+/819424
Change-Id: Ib445e0ddd01d52314e50ca6edd2fa20e5f6ef3eb
2021-12-03 11:40:36 +01:00
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