innobackupex

使用innobackupex进行数据库备份,报如下错误：
innobackupex --compress --parallel=4 --user=root --password=yoon /export/backup/
xtrabackup_56 version 2.1.9 for MySQL server 5.6.17 Linux （x86_64）（revision id: 744）
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
2016-01-21 21:41:29 7f343333b720 InnoDB: Operating system error number 2 in a file operation.
InnoDB: The error means the system cannot find the path specified.
InnoDB: File ./ib_logfile0: "open" returned OS error 71. Cannot continue operation
innobackupex: Error: The xtrabackup child process has died at /usr/bin/innobackupex line 2622.在生产库备份没问题，在虚拟机备份就出问题！percona说修改配置文件路径权限：
https://www.percona.com/forums/questions-discussions/percona-xtrabackup/13396-file-name-ib_logfile0-innodb-file-operation-call-open-returned-os-error-71
[root@hank-yoon mysql]# ls -ltr
total 180
-rw-r--r--. 1 root root 2496 Jul 15 2015 README
-rw-r--r--. 1 root root 17987 Jul 15 2015 COPYING
-rw-r--r--. 1 root root 104897 Jul 15 2015 INSTALL-BINARY
drwxr-xr-x. 2 root root 4096 Dec 19 18:39 docs
drwxr-xr-x. 3 root root 4096 Dec 19 18:39 include
drwxr-xr-x. 4 root root 4096 Dec 19 18:39 man
drwxr-xr-x. 3 root root 4096 Dec 19 18:39 data
drwxr-xr-x. 3 root root 4096 Dec 19 18:39 lib
drwxr-xr-x. 2 root root 4096 Dec 19 18:39 scripts
drwxr-xr-x. 2 root root 4096 Dec 19 18:39 bin
drwxr-xr-x. 10 root root 4096 Dec 19 18:39 mysql-test
drwxr-xr-x. 2 root root 4096 Dec 19 18:39 support-files
drwxr-xr-x. 28 root root 4096 Dec 19 18:39 share
drwxr-xr-x. 4 root root 4096 Dec 19 18:39 sql-bench
-rw-r--r--. 1 root root 943 Dec 19 18:39 my.cnf
drwxr-xr-x. 2 root root 4096 Dec 19 18:40 etc
[root@hank-yoon mysql]# chown -R mysql.mysql etc/ 问题依旧！报错总是提示ib_logfile0,在配置文件中ib_logfile参数是存在的：
InnoDB: File ./ib_logfile0: "open" returned OS error 71. Cannot continue operation重新备份指定参数文件：
[root@hank-yoon backup]# innobackupex --compress --parallel=4 --defaults-file=/export/servers/mysql/etc/my.cnf --user=root --password=yoon /export/backup/
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
160121 22:12:52 innobackupex: Connecting to MySQL server with DSN "dbi:mysql:;mysql_read_default_file=/export/servers/mysql/etc/my.cnf;mysql_read_default_group=xtrabackup" as "root" （using password: YES）.
160121 22:12:52 innobackupex: Connected to MySQL server
160121 22:12:52 innobackupex: Executing a version check against the server...
160121 22:12:52 innobackupex: Done.
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 5.6.26-log
innobackupex: Created backup directory /export/backup/2016-01-21_22-12-52
160121 22:12:52 innobackupex: Starting ibbackup with command: xtrabackup_56 --defaults-file="/export/servers/mysql/etc/my.cnf" --defaults-group="mysqld" --backup --suspend-at-end --target-dir=/export/backup/2016-01-21_22-12-52 --tmpdir=/export/data/mysql/tmp --compress --compress-threads=1 --parallel=4
innobackupex: Waiting for ibbackup （pid=5476） to suspend
innobackupex: Suspend file "/export/backup/2016-01-21_22-12-52/xtrabackup_suspended_2"
xtrabackup_56 version 2.1.9 for MySQL server 5.6.17 Linux （x86_64）（revision id: 744）
xtrabackup: uses posix_fadvise（）.
xtrabackup: cd to /export/data/mysql/data/
xtrabackup: open files limit requested 65535, set to 65535
xtrabackup: using the following InnoDB configuration:
xtrabackup: innodb_data_home_dir = /export/data/mysql/data
xtrabackup: innodb_data_file_path = ibdata1:2G;ibdata2:2G:autoextend
xtrabackup: innodb_log_group_home_dir = /export/data/mysql/data
xtrabackup: innodb_log_files_in_group = 3
xtrabackup: innodb_log_file_size = 268435456
2016-01-21 22:12:52 7fa03bee9720 InnoDB: Using Linux native AIO
xtrabackup: using O_DIRECT
>> log scanned up to （1510934）
InnoDB: Opened 4 undo tablespaces
xtrabackup: Starting 4 threads for parallel data files transfer
[04] Compressing /export/data/mysql/data/ibdata1 to /export/backup/2016-01-21_22-12-52/ibdata1.qp
[03] Compressing /export/data/mysql/data/ibdata2 to /export/backup/2016-01-21_22-12-52/ibdata2.qp
[02] Compressing /export/data/mysql/undo/undo001 to /export/backup/2016-01-21_22-12-52/undo001.qp
[01] Compressing /export/data/mysql/undo/undo002 to /export/backup/2016-01-21_22-12-52/undo002.qp
[02] ...done
[01] ...done
>> log scanned up to （1510934）
[01] Compressing /export/data/mysql/undo/undo003 to /export/backup/2016-01-21_22-12-52/undo003.qp
[02] Compressing /export/data/mysql/undo/undo004 to /export/backup/2016-01-21_22-12-52/undo004.qp
[02] ...done
[01] ...done
[02] Compressing ./mysql/innodb_index_stats.ibd to /export/backup/2016-01-21_22-12-52/mysql/innodb_index_stats.ibd.qp
[02] ...done
[01] Compressing ./mysql/innodb_table_stats.ibd to /export/backup/2016-01-21_22-12-52/mysql/innodb_table_stats.ibd.qp
[01] ...done
[02] Compressing ./mysql/slave_master_info.ibd to /export/backup/2016-01-21_22-12-52/mysql/slave_master_info.ibd.qp
[02] ...done
>> log scanned up to （1510934）
[01] Compressing ./mysql/slave_relay_log_info.ibd to /export/backup/2016-01-21_22-12-52/mysql/slave_relay_log_info.ibd.qp
[01] ...done
[02] Compressing ./mysql/slave_worker_info.ibd to /export/backup/2016-01-21_22-12-52/mysql/slave_worker_info.ibd.qp
[02] ...done
>> log scanned up to （1510934）
>> log scanned up to （1510934）
>> log scanned up to （1510934）
>> log scanned up to （1510934）
[04] ...done
[03] ...done
xtrabackup: Creating suspend file "/export/backup/2016-01-21_22-12-52/xtrabackup_suspended_2" with pid "5476"
160121 22:12:59 innobackupex: Continuing after ibbackup has suspended
160121 22:12:59 innobackupex: Starting to lock all tables...
160121 22:12:59 innobackupex: All tables locked and flushed to disk
160121 22:12:59 innobackupex: Starting to backup non-InnoDB tables and files
innobackupex: in subdirectories of "/export/data/mysql/data/"
innobackupex: Backing up files "/export/data/mysql/data//mysql/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}" （74 files）
>> log scanned up to （1510934）
innobackupex: Backing up files "/export/data/mysql/data//performance_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}" （53 files）
160121 22:13:00 innobackupex: Finished backing up non-InnoDB tables and files160121 22:13:00 innobackupex: Waiting for log copying to finishxtrabackup: The latest check point （for incremental）: "1510934"
xtrabackup: Stopping log copying thread.
.>> log scanned up to （1510934）xtrabackup: Creating suspend file "/export/backup/2016-01-21_22-12-52/xtrabackup_log_copied" with pid "5476"
xtrabackup: Transaction log of lsn （1510934） to （1510934） was copied.
160121 22:13:01 innobackupex: All tables unlockedinnobackupex: Backup created in directory "/export/backup/2016-01-21_22-12-52"
innobackupex: MySQL binlog position: filename "mysql-bin.000007", position 120
160121 22:13:01 innobackupex: Connection to database server closed
160121 22:13:01 innobackupex: completed OK！本文永久更新链接地址