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
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 files
160121 22:13:00 innobackupex: Waiting for log copying to finish
xtrabackup: 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 unlocked
innobackupex: 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!
