Comment 8 for bug 1931047

Reviewed: https://review.opendev.org/c/openstack/tripleo-heat-templates/+/796703
Committed: https://opendev.org/openstack/tripleo-heat-templates/commit/89fde273eaf69bc32d79221883c7abf657ebbda9
Submitter: "Zuul (22348)"
Branch: stable/victoria

commit 89fde273eaf69bc32d79221883c7abf657ebbda9
Author: Takashi Kajinami <email address hidden>
Date: Mon Jun 7 10:31:32 2021 +0900

    Add support for keystone_authtoken/memcache_use_advanced_pool

    This change introduces a single parameter, MemcacheUseAdvancedPool,
    to enable usage of advanced connection pool in keystone middleware.
    This is useful to avoid bursting connection to memcached.

    Note that the default value of memcached_use_advanced_pool was changed
    from false to true during Xena cycle[1], so this parameter is no longer
    required in master. However the change in keystonemiddleware will
    never be backported. This change is created so that we can switch to
    advanced pool even in older releases.

    [1] https://review.opendev.org/c/openstack/keystonemiddleware/+/773939

    (To Victoria)
    Conflicts:
            deployment/aodh/aodh-api-container-puppet.yaml
            deployment/glance/glance-api-container-puppet.yaml
            deployment/gnocchi/gnocchi-api-container-puppet.yaml
            deployment/manila/manila-api-container-puppet.yaml
            deployment/nova/nova-api-container-puppet.yaml

    Closes-Bug: #1931047
    Change-Id: I2887249af44ccfdae1592dd9120d3366fa059876
    (cherry picked from commit 09bcacd25a7217ce66eec10ccfda4847e6d3d87a)
    (cherry picked from commit 9a89b9add62d1d6251285a091e96e98f8157d1bd)