Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.2.13
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None
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Ubuntu
Description
When trying to restore a backup that was taken with same version of mariabackup, and that includes incremental pieces, the restore fails when we try to apply the first incremental
to the base (full) backup.
We found out that this is tied to the fact the underlying filesystem is a CIFS mount.
The exact same operation with same data succeeds if we try this on a local filesystem.
CIFS mount options:
/Production-Backups/prod-mariadb03 on /backup type cifs (rw,relatime,vers=2.0,cache=strict,username=svc-backup-prod,domain=redacted,uid=0,noforceuid,gid=0,noforcegid,addr=10.15.200.31,file_mode=0775,dir_mode=0775,nounix,serverino,mapposix,rsize=65536,wsize=65536,echo_interval=60,actimeo=1)
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Command line used to apply incremental:
$XTRABACKUP --defaults-file=$TD/backup-my.cnf --prepare --use-memory=4G --apply-log-only --target-dir=$TD --incremental-dir=$TD/incrementals/$piece
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Failure log:
mariabackup based on MariaDB server 10.2.13-MariaDB debian-linux-gnu (x86_64)
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incremental backup from 1875122129 is enabled.
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mariabackup: cd to /backup/bgbackup-maria/rick/
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mariabackup: This target seems to be already prepared.
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mariabackup: using the following InnoDB configuration for recovery:
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mariabackup: innodb_data_home_dir = .
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mariabackup: innodb_data_file_path = ibdata1:12M:autoextend
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mariabackup: innodb_log_group_home_dir = /backup/bgbackup-maria/rick/incrementals/incr-2018-04-04_01-30-01/
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mariabackup: Generating a list of tablespaces
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mariabackup: page size for /backup/bgbackup-maria/rick/incrementals/incr-2018-04-04_01-30-01//ibdata1.delta is 16384 bytes
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Applying /backup/bgbackup-maria/rick/incrementals/incr-2018-04-04_01-30-01//ibdata1.delta to ./ibdata1...
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2018-04-04 17:32:59 140111916681408 [Warning] InnoDB: Retry attempts for reading partial data failed.
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2018-04-04 17:32:59 140111916681408 [ERROR] InnoDB: Tried to read 16384 bytes at offset 0, but was only able to read 0
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2018-04-04 17:32:59 140111916681408 [ERROR] InnoDB: Operating system error number 22 in a file operation.
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2018-04-04 17:32:59 140111916681408 [ERROR] InnoDB: Error number 22 means 'Invalid argument'
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2018-04-04 17:32:59 140111916681408 [Note] InnoDB: Some operating system error numbers are described at https://mariadb.com/kb/en/library/operating-system-error-codes/
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2018-04-04 17:32:59 140111916681408 [ERROR] InnoDB: File (unknown): 'read' returned OS error 222. Cannot continue operation
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180404 17:32:59 [ERROR] mysqld got signal 6 ;
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This could be because you hit a bug. It is also possible that this binary
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or one of the libraries it was linked against is corrupt, improperly built,
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or misconfigured. This error can also be caused by malfunctioning hardware.
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To report this bug, see https://mariadb.com/kb/en/reporting-bugs
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We will try our best to scrape up some info that will hopefully help
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diagnose the problem, but since we have already crashed,
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something is definitely wrong and this may fail.
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Server version: 10.2.13-MariaDB-10.2.13+maria~xenial
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key_buffer_size=0
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read_buffer_size=131072
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max_used_connections=0
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max_threads=1
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thread_count=0
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 5421 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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Thread pointer: 0x0
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x0 thread_stack 0x49000
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addr2line: 'mariabackup': No such file
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mariabackup(my_print_stacktrace+0x2e)[0x55e29c08481e]
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mariabackup(handle_fatal_signal+0x345)[0x55e29bb81835]
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/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7f6e58cc4390]
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linux/raise.c:54(__GI_raise)[0x7f6e56f6b428]
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stdlib/abort.c:91(__GI_abort)[0x7f6e56f6d02a]
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addr2line: 'mariabackup': No such file
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mariabackup(+0x9fd6b6)[0x55e29be906b6]
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mariabackup(+0xa030f8)[0x55e29be960f8]
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mariabackup(+0xa031b2)[0x55e29be961b2]
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mariabackup(+0x4324dc)[0x55e29b8c54dc]
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mariabackup(+0x408cb7)[0x55e29b89bcb7]
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mariabackup(+0x437053)[0x55e29b8ca053]
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mariabackup(main+0x185)[0x55e29b8ad145]
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csu/libc-start.c:325(__libc_start_main)[0x7f6e56f56830]
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addr2line: 'mariabackup': No such file
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mariabackup(_start+0x29)[0x55e29b8c1f79]
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The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
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information that should help you find out what is causing the crash.
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