# innobackupex failing with socket error **URL:** \ **Category:** Percona XtraBackup\ **Created:** [December 14, 2015, 4:42pm UTC](https://forums.percona.com/t/innobackupex-failing-with-socket-error/4600 "2015-12-14T16:42:04Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![johntest](https://avatars.discourse-cdn.com/v4/letter/j/848f3c/32.png) [@johntest](https://forums.percona.com/u/johntest)\ **Post date:** [December 14, 2015, 4:42pm UTC](https://forums.percona.com/t/innobackupex-failing-with-socket-error/4600/1 "2015-12-14T16:42:04Z")
Here is the my.cnf [mysqld] wsrep\_provider=/usr/lib64/galera-3/libgalera\_smm.so wsrep\_cluster\_address=“gcomm://10.10.1.2,10.10.1.3,10.10.1.4” binlog\_format=row default\_storage\_engine=InnoDB innodb\_autoinc\_lock\_mode=2 bind-address=0.0.0.0 # Maximum number of rows in write set wsrep\_max\_ws\_rows=1048576 # Maximum size of write set wsrep\_max\_ws\_size=1073741824 max\_allowed\_packet = 64M max\_connections = 512 table\_open\_cache=1000 innodb\_buffer\_pool\_size=4G query\_cache\_type=1 query\_cache\_size=128M wait\_timeout=86400 innodb\_log\_file\_size = 2G innodb\_log\_buffer\_size = 32M innodb\_file\_per\_table = 1 innodb\_log\_files\_in\_group = 2 innodb\_flush\_method = O\_DIRECT innodb\_flush\_log\_at\_trx\_commit = 2 event\_scheduler=ON #multi-site cluster wsrep\_provider\_options=“evs.keepalive\_period = PT3S; evs.suspect\_timeout = PT30S; evs.inactive\_timeout = PT1M; evs.install\_timeout = PT1M” COMMAND innobackupex --user=root --password=Password123 /var/tmp/backup OUTPUT 151214 17:06:16 innobackupex: Starting the backup operation IMPORTANT: Please check that the backup run completes successfully. At the end of a successful backup run innobackupex prints “completed OK!”. 151214 17:06:16 version\_check Connecting to MySQL server with DSN ‘dbi:mysql:;mysql\_read\_default\_group=xtrabackup;host=localhost;port=3306’ as ‘root’ (using password: YES). 151214 17:06:16 version\_check Connected to MySQL server 151214 17:06:16 version\_check Executing a version check against the server… 151214 17:06:16 version\_check Done. 151214 17:06:16 Connecting to MySQL server host: localhost, user: root, password: set, port: 3306, socket: (null) Failed to connect to MySQL server: Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2). ---
**Author:** ![johntest](https://avatars.discourse-cdn.com/v4/letter/j/848f3c/32.png) [@johntest](https://forums.percona.com/u/johntest)\ **Post date:** [December 14, 2015, 4:46pm UTC](https://forums.percona.com/t/innobackupex-failing-with-socket-error/4600/2 "2015-12-14T16:46:52Z")
Forgot to mention. This is CentOS 6.7 packages galera-3-25.3.12-2.el6.x86\_64 mysql-wsrep-server-5.6-5.6.25-25.11.el6.x86\_64 mysql-wsrep-5.6-5.6.25-25.11.el6.x86\_64 mysql-wsrep-client-5.6-5.6.25-25.11.el6.x86\_64 MySQL-shared-compat-5.5.35-1.el6.x86\_64 mysql-wsrep-devel-5.6-5.6.25-25.11.el6.x86\_64 perl-DBD-MySQL-4.013-3.el6.x86\_64 ---
**Author:** ![johntest](https://avatars.discourse-cdn.com/v4/letter/j/848f3c/32.png) [@johntest](https://forums.percona.com/u/johntest)\ **Post date:** [December 14, 2015, 5:07pm UTC](https://forums.percona.com/t/innobackupex-failing-with-socket-error/4600/3 "2015-12-14T17:07:05Z")
Found the solution. I had done this yum install percona-xtrabackup Instead of this yum install percona-xtrabackup-22 For CentOS 6.7 we have to do this yum install percona-xtrabackup-22 ---
**Author:** ![jrivera](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/jrivera/32/13_2.png) [@jrivera](https://forums.percona.com/u/jrivera)\ **Post date:** [December 16, 2015, 12:20am UTC](https://forums.percona.com/t/innobackupex-failing-with-socket-error/4600/4 "2015-12-16T00:20:28Z")
percona-xtrabackup-22 will install the 2.2.x version of the package. percona-xtrabackup-21 will install the 2.1.x version of the package. percona-xtrabackup will install the 2.3.x version of the package. Make sure you installed latest repository rpm package.