openstack/devstack
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Merge "Try to reduce mysql memory usage"

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Zuul 2023-02-20 21:47:01 +00:00 committed by Gerrit Code Review
commit 37322e4e67
3 changed files with 18 additions and 0 deletions
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3
.zuul.yaml
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@ -696,6 +696,9 @@
description: |
Simple multinode test to verify multinode functionality on devstack side.
This is not meant to be used as a parent job.
vars:
devstack_localrc:
MYSQL_REDUCE_MEMORY: true
# NOTE(ianw) Platform tests have traditionally been non-voting because
# we often have to rush things through devstack to stabilise the gate,

10
lib/databases/mysql
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@ -176,6 +176,16 @@ function configure_database_mysql {
count INT, PRIMARY KEY (db, op)) ENGINE MEMORY" stats
fi
if [[ "$MYSQL_REDUCE_MEMORY" == "True" ]]; then
iniset -sudo $my_conf mysqld read_buffer_size 64K
iniset -sudo $my_conf mysqld innodb_buffer_pool_size 16M
iniset -sudo $my_conf mysqld thread_stack 192K
iniset -sudo $my_conf mysqld thread_cache_size 8
iniset -sudo $my_conf mysqld tmp_table_size 8M
iniset -sudo $my_conf mysqld sort_buffer_size 8M
iniset -sudo $my_conf mysqld max_allowed_packet 8M
fi
restart_service $MYSQL_SERVICE_NAME
}

5
stackrc
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@ -201,6 +201,11 @@ DATABASE_QUERY_LOGGING=$(trueorfalse False DATABASE_QUERY_LOGGING)
# performance_schema that are of interest to us
MYSQL_GATHER_PERFORMANCE=$(trueorfalse True MYSQL_GATHER_PERFORMANCE)
# This can be used to reduce the amount of memory mysqld uses while running.
# These are unscientifically determined, and could reduce performance or
# cause other issues.
MYSQL_REDUCE_MEMORY=$(trueorfalse False MYSQL_REDUCE_MEMORY)
# Set a timeout for git operations. If git is still running when the
# timeout expires, the command will be retried up to 3 times. This is
# in the format for timeout(1);