I have a 6 node cluster that was running well ,
Unfortunately the other day one of the servers had a lockup , still pingable but not reachable ,
Until I killed the node the entire cluster was locked and was unable to make any queries ,
Version I am using is Percona-XtraDB-Cluster 56-5.6.22-25.8.978
once the Node was disabled the services retuned to normal
Has anybody experienced this before and a possible solution to stop it happening again .