No downtime Xtrabackup creating slave nodes

Complete the Basic Environment configuration of the slave node: Create mysql users, install mysql software of the same version, xtrabackup software package, create directories, and configure scripts.

Complete the Basic Environment configuration of the slave node: Create mysql users, install mysql software of the same version, xtrabackup software package, create directories, and configure scripts.

Master: 10.1.1.17: 3306
Slave: 10.1.1.18: 3307
Complete the Basic Environment configuration of the slave node: Create mysql users, install mysql software of the same version, xtrabackup software package, create directories, and configure scripts.

1. Create a full backup: master
[Mysql @ master1 backup] $ innobackupex -- defaults-file =/data/mysqldata/3306/my. cnf -- user = xtrabk -- password = 'onlybackup '/backup/backup_full/

2. Copy and prepare backup Sets
[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 2003,200 9 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: 2048 M: 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: 2048 M: 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 = 100.0 M
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: 2048 M: 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: 2048 M: 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 = 100.0 M
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