show engine innodb status;
show open tables where In_use > 0 ;
show full processlist ;
Percona
SHOW GLOBAL STATUS LIKE 'wsrep_cluster_size';
- wsrep_cluster_status shows the primary status of the cluster component that the node is in,
which you can use in determining whether your cluster is experiencing a partition.
SHOW GLOBAL STATUS LIKE 'wsrep_cluster_status';