Details
-
Bug
-
Status: Closed (View Workflow)
-
Major
-
Resolution: Fixed
-
10.2.7, 10.2.8
Description
Unfortunately mariabackup from current GitHub code of 10.2 crashes in the same way as xtrabackup 2.4.7 (see https://bugs.launchpad.net/percona-xtrabackup/+bug/1704636) while backing up MariaDB 10.2.x data.
This does not let backup to complete successfully when there are no long running queries, but NOT block everything with FTWRL waiting when they are present.
Test case is simple, just run the following with 10.2.7+ started with all/almost all default:
openxs@ao756:~/dbs/maria10.2$ rm -rf /home/openxs/backup/*
|
openxs@ao756:~/dbs/maria10.2$ ls /home/openxs/backup
|
openxs@ao756:~/dbs/maria10.2$ bin/mariabackup --no-defaults --host=127.0.0.1 --port=3308 --datadir=/home/openxs/dbs/maria10.2/data --user=root --backup --compress --ftwrl-wait-timeout=5 --ftwrl-wait-threshold=300 --ftwrl-wait-query-type=all --target-dir=/home/openxs/backup
|
170716 15:36:16 Connecting to MySQL server host: 127.0.0.1, user: root, password: not set, port: 3308, socket: not set
|
Using server version 10.2.8-MariaDB-log
|
bin/mariabackup based on MariaDB server 10.2.8-MariaDB Linux (x86_64)
|
xtrabackup: uses posix_fadvise().
|
xtrabackup: cd to /home/openxs/dbs/maria10.2/data/
|
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 = ibdata1:12M:autoextend
|
xtrabackup: innodb_log_group_home_dir = ./
|
2017-07-16 15:36:16 140640590980992 [Note] InnoDB: Number of pools: 1
|
170716 15:36:16 >> log scanned up to (298878873)
|
xtrabackup: Generating a list of tablespaces
|
2017-07-16 15:36:16 140640590980992 [Warning] InnoDB: Allocated tablespace ID 1 for mysql/innodb_table_stats, old maximum was 0
|
170716 15:36:16 [01] Compressing ./ibdata1 to /home/openxs/backup/ibdata1.qp
|
170716 15:36:17 [01] ...done
|
170716 15:36:17 [01] Compressing ./mysql/innodb_table_stats.ibd to /home/openxs/backup/mysql/innodb_table_stats.ibd.qp
|
170716 15:36:17 [01] ...done
|
170716 15:36:17 [01] Compressing ./mysql/innodb_index_stats.ibd to /home/openxs/backup/mysql/innodb_index_stats.ibd.qp
|
170716 15:36:17 [01] ...done
|
170716 15:36:17 [01] Compressing ./mysql/gtid_slave_pos.ibd to /home/openxs/backup/mysql/gtid_slave_pos.ibd.qp
|
170716 15:36:17 [01] ...done
|
170716 15:36:17 [01] Compressing ./test/sbtest1.ibd to /home/openxs/backup/test/sbtest1.ibd.qp
|
170716 15:36:17 >> log scanned up to (298878873)
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/tt1.ibd to /home/openxs/backup/test/tt1.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/task.ibd to /home/openxs/backup/test/task.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/incident.ibd to /home/openxs/backup/test/incident.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/tt2.ibd to /home/openxs/backup/test/tt2.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/t1i.ibd to /home/openxs/backup/test/t1i.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/t.ibd to /home/openxs/backup/test/t.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/bd.ibd to /home/openxs/backup/test/bd.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 [01] Compressing ./test/tt.ibd to /home/openxs/backup/test/tt.ibd.qp
|
170716 15:36:26 [01] ...done
|
170716 15:36:26 Waiting 5 seconds for queries running longer than 300 seconds to finish
|
170716 15:36:26 [ERROR] mysqld got signal 11 ;
|
This could be because you hit a bug. It is also possible that this binary
|
or one of the libraries it was linked against is corrupt, improperly built,
|
or misconfigured. This error can also be caused by malfunctioning hardware.
|
|
|
To report this bug, see https://mariadb.com/kb/en/reporting-bugs
|
|
|
We will try our best to scrape up some info that will hopefully help
|
diagnose the problem, but since we have already crashed,
|
something is definitely wrong and this may fail.
|
|
|
Server version: 10.2.8-MariaDB
|
key_buffer_size=0
|
read_buffer_size=131072
|
max_used_connections=0
|
max_threads=1
|
thread_count=0
|
It is possible that mysqld could use up to
|
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 5383 K bytes of memory
|
Hope that's ok; if not, decrease some variables in the equation.
|
|
|
Thread pointer: 0x0
|
Attempting backtrace. You can use the following information to find out
|
where mysqld died. If you see no messages after this, something went
|
terribly wrong...
|
stack_bottom = 0x0 thread_stack 0x49000
|
addr2line: 'bin/mariabackup': No such file
|
bin/mariabackup(my_print_stacktrace+0x29)[0x7fe970048499]
|
bin/mariabackup(handle_fatal_signal+0x30d)[0x7fe96fb8724d]
|
/lib/x86_64-linux-gnu/libpthread.so.0(+0x10330)[0x7fe96f092330]
|
/lib/x86_64-linux-gnu/libc.so.6(+0x3d467)[0x7fe96d032467]
|
bin/mariabackup(_Z11lock_tablesP8st_mysql+0xea)[0x7fe96f91e6ca]
|
bin/mariabackup(_Z12backup_startv+0x80)[0x7fe96f925710]
|
bin/mariabackup(+0x44fbfa)[0x7fe96f914bfa]
|
bin/mariabackup(main+0x11b)[0x7fe96f8f34cb]
|
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7fe96d016f45]
|
bin/mariabackup(+0x447658)[0x7fe96f90c658]
|
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
|
information that should help you find out what is causing the crash.
|
Segmentation fault (core dumped)
|
openxs@ao756:~/dbs/maria10.2$
|