Hi I am using Percona Xtradb cluster of 3 nodes. I have been seeing that one of the nodes get crashed or comes out of cluster and then it fails to sync with other nodes on starting mysql. I have been using xtrabackup as sst method. In my last scenario, it failed to start again but started fine when I used rsync as sst method. I see that this particular node had some network issue as below:
2015-01-23 04:17:37 6659 [Warning] WSREP: Gap in state sequence. Need state transfer.
2015-01-23 04:17:37 6659 [Note] WSREP: You have configured ‘xtrabackup’ state snapshot transfer method which cannot be performed on a running server. Wsrep provider won’t be able to fall back to it if other means of state transfer are unavailable. In that case you will need to restart the server.
I am using percona-xtrabackup-2.2.6-5042.el5. Is this a bug in this version of xtrabackup?