Innobackupex:Error:xtrabackup child process has died at / usr/bin/innobackupex
Using innobackupex for database backup, the following error is reported:
Innobackupex-compress-parallel=4-user=root-password=yoon / export/backup/
Xtrabackup_56 version 2.1.9 for MySQL server 5.6.17 Linux (x86x64) (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.
There is no problem in the production library backup, but there is a problem in the virtual machine backup!
Percona said to modify the configuration file path permissions:
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/ problem remains!
The error always prompts ib_logfile0, and the ib_logfile parameter exists in the configuration file:
InnoDB: File. / ib_logfile0: 'open' returned OS error 71. Cannot continue operation
Back up the specified parameter file again:
[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 InnoDB Backup Utility 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/2016-01-21th 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_56 version 2.1.9 for MySQL server 5.6.17 Linux (x86x64) (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/2016-01-21A 22-12-52/ibdata1.qp
[03] Compressing / export/data/mysql/data/ibdata2 to / export/backup/2016-01-21A 22-12-52/ibdata2.qp
[02] Compressing / export/data/mysql/undo/undo001 to / export/backup/2016-01-21A 22-12-52/undo001.qp
[01] Compressing / export/data/mysql/undo/undo002 to / export/backup/2016-01-21A 22-12-52/undo002.qp
[02]... done
[01]... done
> log scanned up to (1510934)
[01] Compressing / export/data/mysql/undo/undo003 to / export/backup/2016-01-21A 22-12-52/undo003.qp
[02] Compressing / export/data/mysql/undo/undo004 to / export/backup/2016-01-21A 22-12-52/undo004.qp
[02]... done
[01]... done
[02] Compressing. / mysql/innodb_index_stats.ibd to / export/backup/2016-01-21A 22-12-52/mysql/innodb_index_stats.ibd.qp
[02]... done
[01] Compressing. / mysql/innodb_table_stats.ibd to / export/backup/2016-01-21A 22-12-52/mysql/innodb_table_stats.ibd.qp
[01]... done
[02] Compressing. / mysql/slave_master_info.ibd to / export/backup/2016-01-21A 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/2016-01-21A 22-12-52/mysql/slave_relay_log_info.ibd.qp
[01]... done
[02] Compressing. / mysql/slave_worker_info.ibd to / export/backup/2016-01-21A 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 January 22-12-52 * 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 September 22-12-52 use xtrabackupply logically copided '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/2016-01-2111 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!
