I am trying to start the cluster on three clean centos machines.
I tried to keep this post short, I am not attaching config files becouse I used this guide and the config files are according this:
https://www.percona.com/doc/percona-xtradb-cluster/5.7/add-node.html#add-node
Starting first node ok. Starting second node error.
Here is the log on second node
2017-09-28T15:05:09.367856Z 0 [Note] WSREP: Initiating SST/IST transfer on JOINER side (wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.14.104' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --defaults-group-suffix '' --parent '5490' '' ) 2017-09-28T15:05:09.368984Z 0 [ERROR] WSREP: Failed to read 'ready ' from: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.14.104' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --defaults-group-suffix '' --parent '5490' '' Read: '(null)' 2017-09-28T15:05:09.369064Z 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '192.168.14.104' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --defaults-group-suffix '' --parent '5490' '' : 2 (No such file or directory) 2017-09-28T15:05:09.370161Z 2 [ERROR] WSREP: Failed to prepare for 'xtrabackup-v2' SST. Unrecoverable. 2017-09-28T15:05:09.370192Z 2 [ERROR] Aborting
Second node startup is failing because it is unable to perform and SST (full state transfer) from the donor node.
This is failing because the xtrabackup-v2 is failing. You need to check the logs on the donor node to get more idea as to why, but possible reasons include -