I had the same or similar error which happens consistently, my error log is copied below. I am very curious about the error on the missing "/var/lib/mysql//.sst" because it was created inside the code: mkdir -p ${DATA}/.sst (recv_joiner $DATA/.sst "${stagemsg}-SST" 0 0) & jpid=$! so I added a few lines to track how it disappeared, and the log shows: WSREP_SST: [INFO] xxxxxxxx (20150519 15:13:53.850) WSREP_SST: [INFO] 0 drwxrwx--x. 2 mysql mysql 6 May 19 15:13 /var/lib/mysql//.sst (20150519 15:13:53.855) WSREP_SST: [INFO] xxxxxxxx (20150519 15:13:53.858) WSREP_SST: [ERROR] Removing /tmp/tmp.jkaFe9krxm/xtrabackup_galera_info file due to signal (20150519 15:13:53.871) WSREP_SST: [INFO] xtrabackup_ist received from donor: Running IST (20150519 15:13:53.874) /usr//bin/wsrep_sst_xtrabackup-v2: line 540: pushd: /var/lib/mysql//.sst: No such file or directory that is, the directory was indeed created, but it was removed by the program itself, something triggered the "rm" inside the code I assume. No one send any signal to the program, could be due to some "internal" signal related to child process. But anyway, I applied the patch and the problem seems to be gone. Applying the patch is difficult process because when you copy the patch with a mouse, the space at the end of line is not copied and that causes problems. For example: if [[ -d ${DATA}/.sst ]];then $ where $ indicates the end of line, and there should be a space. PS: The error log 150519 15:13:41 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 150519 15:13:41 mysqld_safe Skipping wsrep-recover for 05d1ca52-fd85-11e4-a7bd-12d874519759:1641 pair 150519 15:13:41 mysqld_safe Assigning 05d1ca52-fd85-11e4-a7bd-12d874519759:1641 to wsrep_start_position 2015-05-19 15:13:41 0 [Note] WSREP: wsrep_start_position var submitted: '05d1ca52-fd85-11e4-a7bd-12d874519759:1641' 2015-05-19 15:13:41 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2015-05-19 15:13:41 1077 [Warning] No argument was provided to --log-bin, and --log-bin-index was not used; so replication may break when this MySQL server acts as a master and has his hostname changed!! Please use '--log-bin=node1-bin' to avoid this problem. 2015-05-19 15:13:41 1077 [Note] WSREP: Read nil XID from storage engines, skipping position init 2015-05-19 15:13:41 1077 [Note] WSREP: wsrep_load(): loading provider library '/usr/lib64/libgalera_smm.so' 2015-05-19 15:13:41 1077 [Note] WSREP: wsrep_load(): Galera 3.9(r93aca2d) by Codership Oy