Second node cannot be added to the cluster because of the incorrect size of the innodb_log_file_size

[Hrvoje Matijakovic]

Setting up the cluster as mentioned in the how-to (http://www.percona.com/doc/percona-xtradb-cluster/5.5/howtos/ubuntu_howto.html#ubuntu-howto) results in innobackupex error due to incorrect innodb_log_file_size on the first node.

 cat innobackup.backup.log

InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy
and Percona LLC and/or its affiliates 2009-2013. All Rights Reserved.

This software is published under
the GNU GENERAL PUBLIC LICENSE Version 2, June 1991.

Get the latest version of Percona XtraBackup, documentation, and help resources:
http://www.percona.com/xb/p

140902 11:19:02 innobackupex: Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_file=/etc/mysql/my.cnf;mysql_read_default_group=xtrabackup;mysql_socket=/var/run/mysqld/mysqld.sock' as 'sstuser' (using password: YES).
140902 11:19:02 innobackupex: Connected to MySQL server
IMPORTANT: Please check that the backup run completes successfully.
           At the end of a successful backup run innobackupex
           prints "completed OK!".

innobackupex: Using mysql server version 5.5.37-35.0

innobackupex: Created backup directory /tmp/tmp.DT0hC4PHJG

140902 11:19:02 innobackupex: Starting ibbackup with command: xtrabackup --defaults-file="/etc/mysql/my.cnf" --defaults-group="mysqld" --backup --suspend-at-end --target-dir=/tmp/tmp.1iGcqbjIXb --tmpdir=/tmp/tmp.1iGcqbjIXb --extra-lsndir='/tmp/tmp.1iGcqbjIXb' --stream=xbstream
innobackupex: Waiting for ibbackup (pid=7956) to suspend
innobackupex: Suspend file '/tmp/tmp.1iGcqbjIXb/xtrabackup_suspended_2'

xtrabackup version 2.2.3 based on MySQL server 5.6.17 Linux (x86_64) (revision id: )
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /var/lib/mysql
xtrabackup: open files limit requested 0, set to 1024
xtrabackup: using the following InnoDB configuration:
xtrabackup: innodb_data_home_dir = ./
xtrabackup: innodb_data_file_path = ibdata1:10M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 2
xtrabackup: innodb_log_file_size = 50331648
InnoDB: Error: log file ./ib_logfile0 is of different size 5242880 bytes
InnoDB: than specified in the .cnf file 50331648 bytes!
innobackupex: Error: The xtrabackup child process has died at /usr//bin/innobackupex line 2672.

Current workaround is manually setting the innodb_log_file_size in my.cnf and restarting the first node.

[Raghavendra D Prabhu (raghavendra-prabhu)]

This is an issue with percona xtrabackup.