Comment 6 for bug 1532761

Reviewed: https://review.openstack.org/265915
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=d839e2e4f950b08b6fb28169da16f56449797fb8
Submitter: Jenkins
Branch: liberty

commit d839e2e4f950b08b6fb28169da16f56449797fb8
Author: Jesse Pretorius <email address hidden>
Date: Mon Jan 11 16:36:49 2016 +0000

    Resolve MariaDB/Galera cluster startup/logging issues

    This patch ensures that MariaDB is given adequate time to start on a
    resources constrained system (180s versus the default of 30s),
    ensures that the error log is appropriately populated and also
    provides a failback restart in the case where there may be a corrupt
    sst directory.

    In the handler changes:
     - the environment variable "MYSQLD_STARTUP_TIMEOUT" is now being
       passed into the init script because the defaults are not being
       sourced at the init script runtime.
     - the temporary "sst" directory is cleaned up should the handler
       restart fail. This ensurez that a node is in a clean state if a
       leftover sst directory was on the disk which would cause a node
       to fail to join a cluster or bootstrap.

    In the task changes a new configuration file, that is part of the
    mariadb package, is being removed which has unforeseen options within
    it causing no logs to be created.

    The default option "galera_innodb_additional_mem_pool_size" was removed
    because its no longer valid within MariaDB10 and we'd never caught that
    error message until now.

    This patch is based on:
     - https://review.openstack.org/256016
     - https://review.openstack.org/266265

    Closes-Bug: #1532761
    Closes-Bug: #1533126
    Change-Id: I16af30c660790656fc2d59f9943c172b88098905