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  in no backup ex: error: Xin Tourou ah backup child process has Singles DAT / US person / bin / in no backup ex
     
  Add Date : 2018-11-21      
         
       
         
  Use innobackupex database backup, the following error message:
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 can not find the path specified.
InnoDB: File ./ib_logfile0: 'open' returned OS error 71. Can not continue operation
innobackupex: Error: The xtrabackup child process has died at / usr / bin / innobackupex line 2622.

No problem in producing backups, virtual machine backups on the problem!

percona said path modify the configuration file 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 is still there!

Error always suggested ib_logfile0, ib_logfile parameters in the configuration file exists:
InnoDB: File ./ib_logfile0: 'open' returned OS error 71. Can not continue operation

Re backup designated parameter file:
[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 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!
     
         
       
         
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