HI Team,
services are running and i tried restart of service and reboot ofcontianer running  keystone but its still same with above error.

root@juju-e1577b-0-lxd-2:~# systemctl  status keystone-mysql-router.service
● keystone-mysql-router.service - MySQL Router
     Loaded: loaded (/etc/systemd/system/keystone-mysql-router.service; enabled; vendor preset: enabled)
     Active: active (exited) since Wed 2021-09-29 08:45:53 UTC; 28min ago
    Process: 19218 ExecStart=/var/lib/mysql/keystone-mysql-router/start.sh (code=exited, status=0/SUCCESS)
   Main PID: 19218 (code=exited, status=0/SUCCESS)
      Tasks: 88 (limit: 314572)
     Memory: 37.0M
     CGroup: /system.slice/keystone-mysql-router.service
             ├─19220 sudo ROUTER_PID=/var/lib/mysql/keystone-mysql-router/mysqlrouter.pid /usr/bin/mysqlrouter -c /var/lib/mysql/keystone-mysql-router/mysqlrouter.conf --user=mysql
             └─19221 /usr/bin/mysqlrouter -c /var/lib/mysql/keystone-mysql-router/mysqlrouter.conf --user=mysql

Sep 29 08:45:53 juju-e1577b-0-lxd-2 systemd[1]: Starting MySQL Router...
Sep 29 08:45:53 juju-e1577b-0-lxd-2 systemd[1]: Started MySQL Router.
Sep 29 08:45:53 juju-e1577b-0-lxd-2 sudo[19220]:     root : TTY=unknown ; PWD=/ ; USER=root ; ENV=ROUTER_PID=/var/lib/mysql/keystone-mysql-router/mysqlrouter.pid ; COMMAND=/usr/bin/mys>
Sep 29 08:45:53 juju-e1577b-0-lxd-2 sudo[19220]: pam_unix(sudo:session): session opened for user root by (uid=0)
Sep 29 08:45:53 juju-e1577b-0-lxd-2 start.sh[19221]: PID 19221 written to '/var/lib/mysql/keystone-mysql-router/mysqlrouter.pid'
Sep 29 08:45:53 juju-e1577b-0-lxd-2 start.sh[19221]: logging facility initialized, switching logging to loggers specified in configuration
root@juju-e1577b-0-lxd-2:~# systemctl  status jujud-unit-keystone-mysql-router-0.service
● jujud-unit-keystone-mysql-router-0.service - juju unit agent for keystone-mysql-router/0
     Loaded: loaded (/etc/systemd/system/jujud-unit-keystone-mysql-router-0.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-09-29 08:46:48 UTC; 28min ago
   Main PID: 19332 (bash)
      Tasks: 37 (limit: 314572)
     Memory: 59.1M
     CGroup: /system.slice/jujud-unit-keystone-mysql-router-0.service
             ├─19332 bash /etc/systemd/system/jujud-unit-keystone-mysql-router-0-exec-start.sh
             └─19336 /var/lib/juju/tools/unit-keystone-mysql-router-0/jujud unit --data-dir /var/lib/juju --unit-name keystone-mysql-router/0 --debug

Sep 29 08:46:48 juju-e1577b-0-lxd-2 systemd[1]: Started juju unit agent for keystone-mysql-router/0.
root@juju-e1577b-0-lxd-2:~#



and when checked mysql router its saying  

root@juju-e1577b-0-lxd-2:/var/lib/mysql/keystone-mysql-router/log# tail -f mysqlrouter.log
2021-09-29 08:45:53 metadata_cache INFO [7fa06c46c700] Potential changes detected in cluster 'jujuCluster' after metadata refresh
2021-09-29 08:45:53 metadata_cache INFO [7fa06c46c700] Metadata for cluster 'jujuCluster' has 1 replicasets:
2021-09-29 08:45:53 metadata_cache INFO [7fa06c46c700] 'default' (3 members, single-primary)
2021-09-29 08:45:53 metadata_cache INFO [7fa06c46c700]     10.222.88.90:3306 / 33060 - mode=RO
2021-09-29 08:45:53 metadata_cache INFO [7fa06c46c700]     10.222.88.112:3306 / 33060 - mode=RO
2021-09-29 08:45:53 metadata_cache INFO [7fa06c46c700]     10.222.88.97:3306 / 33060 - mode=RW
2021-09-29 08:45:53 routing INFO [7fa06c46c700] Routing routing:jujuCluster_x_rw listening on 3308 and named socket /var/lib/mysql/keystone-mysql-router/mysqlx.sock got request to disconnect invalid connections: metadata change
2021-09-29 08:45:53 routing INFO [7fa06c46c700] Routing routing:jujuCluster_x_ro listening on 3309 and named socket /var/lib/mysql/keystone-mysql-router/mysqlxro.sock got request to disconnect invalid connections: metadata change
2021-09-29 08:45:53 routing INFO [7fa06c46c700] Routing routing:jujuCluster_rw listening on 3306 and named socket /var/lib/mysql/keystone-mysql-router/mysql.sock got request to disconnect invalid connections: metadata change
2021-09-29 08:45:53 routing INFO [7fa06c46c700] Routing routing:jujuCluster_ro listening on 3307 and named socket /var/lib/mysql/keystone-mysql-router/mysqlro.sock got request to disconnect invalid connections: metadata change