不停机Xtrabackup创建slave节点

slave节点完成基础环境的配置：创建好mysql用户，装好相同版本的mysql软件，xtrabackup软件包，创建好目录，配置好脚本

master:10.1.1.17:3306
slave:10.1.1.18:3307
slave节点完成基础环境的配置：创建好mysql用户，装好相同版本的mysql软件，xtrabackup软件包，，创建好目录，配置好脚本

1、创建完整备份：master
[mysql@master1 backup]$ innobackupex --defaults-file=/data/mysqldata/3306/my.cnf --user=xtrabk --password='onlybackup' /backup/backup_full/

2、复制和准备备份集
[mysql@master1 backup_full]$ scp -r /backup/backup_full/2015-05-21_01-31-19/* 10.1.1.18:/data/mysqldata/3307
[mysql@master2 3307]$ innobackupex --apply-log /data/mysqldata/3307/data/

InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy
and Percona Ireland Ltd 2009-2012. All Rights Reserved.

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

IMPORTANT: Please check that the apply-log run completes successfully.
At the end of a successful apply-log run innobackupex
prints "completed OK!".

150521 01:51:29 innobackupex: Starting ibbackup with command: xtrabackup_56 --defaults-file="/data/mysqldata/3307/data/backup-my.cnf" --defaults-group="mysqld" --prepare --target-dir=/data/mysqldata/3307/data --tmpdir=/tmp

xtrabackup_56 version 2.0.7 for MySQL server 5.6.10 Linux (x86_64) (revision id: 552)
xtrabackup: cd to /data/mysqldata/3307/data
xtrabackup: This target seems to be not prepared yet.
xtrabackup: xtrabackup_logfile detected: size=2097152, start_lsn=(1645755)
xtrabackup: Temporary instance for recovery is set as followings.
xtrabackup: innodb_data_home_dir = ./
xtrabackup: innodb_data_file_path = ibdata1:2048M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 1
xtrabackup: innodb_log_file_size = 2097152
xtrabackup: Temporary instance for recovery is set as followings.
xtrabackup: innodb_data_home_dir = ./
xtrabackup: innodb_data_file_path = ibdata1:2048M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 1
xtrabackup: innodb_log_file_size = 2097152
xtrabackup: Starting InnoDB instance for recovery.
xtrabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter)
InnoDB: The InnoDB memory heap is disabled
InnoDB: Mutexes and rw_locks use GCC atomic builtins
InnoDB: Compressed tables use zlib 1.2.3
InnoDB: CPU supports crc32 instructions
InnoDB: Initializing buffer pool, size = 100.0M
InnoDB: Completed initialization of buffer pool
InnoDB: Highest supported file format is Barracuda.
InnoDB: The log sequence numbers 1639650 and 1639650 in ibdata files do not match the log sequence number 1645755 in the ib_logfiles!
InnoDB: Database was not shutdown normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages
InnoDB: from the doublewrite buffer...
InnoDB: Last MySQL binlog file position 0 812, file name mysql-bin.000011
InnoDB: 128 rollback segment(s) are active.
InnoDB: Waiting for purge to start
2015-05-21 01:51:31 4a924940 InnoDB: Warning: table 'mysql/innodb_index_stats'
InnoDB: in InnoDB data dictionary has unknown flags 50.
2015-05-21 01:51:31 4a924940 InnoDB: Warning: table 'mysql/innodb_table_stats'
InnoDB: in InnoDB data dictionary has unknown flags 50.
InnoDB: 1.2.10 started; log sequence number 1645755

[notice (again)]
If you use binary log and don't use any hack of group commit,
the binary log position seems to be:
InnoDB: Last MySQL binlog file position 0 812, file name mysql-bin.000011

xtrabackup: starting shutdown with innodb_fast_shutdown = 1
InnoDB: FTS optimize thread exiting.
InnoDB: Starting shutdown...
InnoDB: Shutdown completed; log sequence number 1645779

150521 01:51:33 innobackupex: Restarting xtrabackup with command: xtrabackup_56 --defaults-file="/data/mysqldata/3307/data/backup-my.cnf" --defaults-group="mysqld" --prepare --target-dir=/data/mysqldata/3307/data --tmpdir=/tmp
for creating ib_logfile*

xtrabackup_56 version 2.0.7 for MySQL server 5.6.10 Linux (x86_64) (revision id: 552)
xtrabackup: cd to /data/mysqldata/3307/data
xtrabackup: This target seems to be already prepared.
xtrabackup: notice: xtrabackup_logfile was already used to '--prepare'.
xtrabackup: Temporary instance for recovery is set as followings.
xtrabackup: innodb_data_home_dir = ./
xtrabackup: innodb_data_file_path = ibdata1:2048M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 3
xtrabackup: innodb_log_file_size = 268435456
xtrabackup: Temporary instance for recovery is set as followings.
xtrabackup: innodb_data_home_dir = ./
xtrabackup: innodb_data_file_path = ibdata1:2048M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 3
xtrabackup: innodb_log_file_size = 268435456
xtrabackup: Starting InnoDB instance for recovery.
xtrabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter)
InnoDB: The InnoDB memory heap is disabled
InnoDB: Mutexes and rw_locks use GCC atomic builtins
InnoDB: Compressed tables use zlib 1.2.3
InnoDB: CPU supports crc32 instructions
InnoDB: Initializing buffer pool, size = 100.0M
InnoDB: Completed initialization of buffer pool
InnoDB: Setting log file ./ib_logfile101 size to 256 MB
InnoDB: Progress in MB: 100 200
InnoDB: Setting log file ./ib_logfile1 size to 256 MB
InnoDB: Progress in MB: 100 200
InnoDB: Setting log file ./ib_logfile2 size to 256 MB
InnoDB: Progress in MB: 100 200
InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
InnoDB: New log files created, LSN=1645779
InnoDB: Highest supported file format is Barracuda.
InnoDB: 128 rollback segment(s) are active.
InnoDB: Waiting for purge to start
2015-05-21 01:52:00 4a5b4940 InnoDB: Warning: table 'mysql/innodb_index_stats'
InnoDB: in InnoDB data dictionary has unknown flags 50.
2015-05-21 01:52:00 4a5b4940 InnoDB: Warning: table 'mysql/innodb_table_stats'
InnoDB: in InnoDB data dictionary has unknown flags 50.
InnoDB: 1.2.10 started; log sequence number 1646092