mirror of
https://github.com/MariaDB/server.git
synced 2025-10-27 05:56:07 +03:00
100 lines
2.1 KiB
Bash
Executable File
100 lines
2.1 KiB
Bash
Executable File
#!/bin/sh -eu
|
|
|
|
# This is a simple example of wsrep notification script (wsrep_notify_cmd).
|
|
# It will create 'wsrep' schema and two tables in it: 'membeship' and 'status'
|
|
# and fill them on every membership or node status change.
|
|
#
|
|
# Edit parameters below to specify the address and login to server.
|
|
|
|
USER=root
|
|
HOST=127.0.0.1
|
|
PORT=$NODE_MYPORT_1
|
|
|
|
SCHEMA="mtr_wsrep_notify"
|
|
MEMB_TABLE="$SCHEMA.membership"
|
|
STATUS_TABLE="$SCHEMA.status"
|
|
|
|
BEGIN="
|
|
SET wsrep_on=0;
|
|
CREATE SCHEMA IF NOT EXISTS $SCHEMA;
|
|
CREATE TABLE IF NOT EXISTS $MEMB_TABLE (
|
|
idx INT,
|
|
uuid CHAR(40), /* node UUID */
|
|
name VARCHAR(32), /* node name */
|
|
addr VARCHAR(256) /* node address */
|
|
) ENGINE=MEMORY;
|
|
CREATE TABLE IF NOT EXISTS $STATUS_TABLE (
|
|
size INT, /* component size */
|
|
idx INT, /* this node index */
|
|
status CHAR(16), /* this node status */
|
|
uuid CHAR(40), /* cluster UUID */
|
|
prim BOOLEAN /* if component is primary */
|
|
) ENGINE=MEMORY;
|
|
BEGIN;
|
|
"
|
|
END="COMMIT;"
|
|
|
|
configuration_change()
|
|
{
|
|
echo "$BEGIN;"
|
|
|
|
local idx=0
|
|
|
|
for NODE in $(echo $MEMBERS | sed s/,/\ /g)
|
|
do
|
|
echo "INSERT INTO $MEMB_TABLE VALUES ( $idx, "
|
|
# Don't forget to properly quote string values
|
|
echo "'$NODE'" | sed s/\\//\',\'/g
|
|
echo ");"
|
|
idx=$(( $idx + 1 ))
|
|
done
|
|
|
|
echo "INSERT INTO $STATUS_TABLE VALUES($idx, $INDEX, '$STATUS', '$CLUSTER_UUID', $PRIMARY);"
|
|
|
|
echo "$END"
|
|
}
|
|
|
|
status_update()
|
|
{
|
|
echo "SET wsrep_on=0; BEGIN; UPDATE $STATUS_TABLE SET status='$STATUS'; COMMIT;"
|
|
}
|
|
|
|
COM=status_update # not a configuration change by default
|
|
|
|
while [ $# -gt 0 ]
|
|
do
|
|
case $1 in
|
|
--status)
|
|
STATUS=$2
|
|
shift
|
|
;;
|
|
--uuid)
|
|
CLUSTER_UUID=$2
|
|
shift
|
|
;;
|
|
--primary)
|
|
[ "$2" = "yes" ] && PRIMARY="1" || PRIMARY="0"
|
|
COM=configuration_change
|
|
shift
|
|
;;
|
|
--index)
|
|
INDEX=$2
|
|
shift
|
|
;;
|
|
--members)
|
|
MEMBERS=$2
|
|
shift
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
# Undefined means node is shutting down
|
|
if [ "$STATUS" != "Undefined" ]
|
|
then
|
|
$COM | mysql -B -u$USER -h$HOST -P$PORT
|
|
fi
|
|
|
|
exit 0
|
|
#
|