diff --git a/.zuul.yaml b/.zuul.yaml
index 6de708671d..0c12a7e048 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -579,6 +579,9 @@
     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,
diff --git a/lib/databases/mysql b/lib/databases/mysql
index ef5b90171e..a5cce94025 100644
--- a/lib/databases/mysql
+++ b/lib/databases/mysql
@@ -143,6 +143,16 @@ function configure_database_mysql {
         iniset -sudo $my_conf mysqld log-queries-not-using-indexes 1
     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
 }
 
diff --git a/stackrc b/stackrc
index 87565dc6ae..24724d9cc8 100755
--- a/stackrc
+++ b/stackrc
@@ -205,6 +205,11 @@ ADDITIONAL_VENV_PACKAGES=${ADITIONAL_VENV_PACKAGES:-""}
 # (currently only implemented for MySQL backend)
 DATABASE_QUERY_LOGGING=$(trueorfalse False DATABASE_QUERY_LOGGING)
 
+# 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);