Details
-
Bug
-
Status: Closed (View Workflow)
-
Major
-
Resolution: Fixed
-
10.6.15, 10.4(EOL), 10.5, 10.6, 10.7(EOL), 10.8(EOL), 10.9(EOL), 10.10(EOL), 10.11, 11.0(EOL), 11.1(EOL), 11.2(EOL), 11.3(EOL), 11.4
Description
We utilize mariabackup for partial backup and restore operations. However, our automated restore tests have encountered failures at times due to corrupted indexes. After some investigation, I have isolated the issue. It appears not to be a problem with mariabackup or the backup itself, as I was able to reproduce the issue on a local instance as well.
#1 Test Case:
Backup the database files:
rsync -av /var/lib/mysql/db1 /var/tmp/
|
Recreate database db1:
DROP DATABASE db1;
|
CREATE DATABASE db1;
|
Create the database schema without secondary indexes (excerpt):
CREATE TABLE `questionnaire` (
|
`id` varchar(64) NOT NULL,
|
.....
|
`created` datetime DEFAULT NULL,
|
`updated` datetime DEFAULT NULL,
|
`deleted` tinyint(1) unsigned NOT NULL DEFAULT 0,
|
PRIMARY KEY (`id`)
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
|
ALTER TABLE `questionnaire` DISCARD TABLESPACE;
|
cp -p /var/tmp/db1/*.ibd /var/lib/mysql/db1/
|
ALTER TABLE `questionnaire` IMPORT TABLESPACE;
|
Check database integrity before restart:
mysqlcheck db1 questionnaire
|
|
|
db1.questionnaire: OK
|
Check database integrity after restart:
mysqlcheck db1 questionnaire
|
db1.questionnaire: Warning: InnoDB: Index PRIMARY is marked as corrupted
|
error: Corrupt
|
#2 Test Case:
In this case, I considered what would happen if I removed the PRIMARY KEY from the table definition. The steps are the same as above, but without the PRIMARY KEY (id).
This led to a crash:
2024-02-21 10:22:28 37 [ERROR] InnoDB: Trying to read 16384 bytes at 15225848610816 outside the bounds of the file: ./db1/questionnaire.ibd
|
2024-02-21 10:22:28 37 [ERROR] InnoDB: File './db1/questionnaire.ibd' is corrupted
|
2024-02-21 10:22:28 37 [Note] InnoDB: Phase III - Flush changes to disk
|
2024-02-21 10:22:28 37 [Note] InnoDB: Phase IV - Flush complete
|
2024-02-21 10:22:28 37 [ERROR] InnoDB: Trying to read 16384 bytes at 13850385334272 outside the bounds of the file: ./db1/questionnaire.ibd
|
2024-02-21 10:22:28 37 [ERROR] InnoDB: Trying to read 16384 bytes at 13850385334272 outside the bounds of the file: ./db1/questionnaire.ibd
|
240221 10:22:28 [ERROR] mysqld got signal 8 ;
|
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: 10.6.15-MariaDB-1:10.6.15+maria~deb11 source revision: 0d16eb35bc981023ce2f4912e8ecde68ca381f4e
|
key_buffer_size=134217728
|
read_buffer_size=131072
|
max_used_connections=1
|
max_threads=153
|
thread_count=1
|
It is possible that mysqld could use up to
|
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467985 K bytes of memory
|
Hope that's ok; if not, decrease some variables in the equation.
|
|
|
Thread pointer: 0x7f2cd8000c58
|
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 = 0x7f2d67ffecd8 thread_stack 0x49000
|
Printing to addr2line failed
|
/usr/sbin/mariadbd(my_print_stacktrace+0x2e)[0x55846a04f2ee]
|
/usr/sbin/mariadbd(handle_fatal_signal+0x485)[0x558469b14825]
|
/lib/x86_64-linux-gnu/libpthread.so.0(+0x13140)[0x7f2d6e1c0140]
|
/usr/sbin/mariadbd(+0xe664f3)[0x558469f844f3]
|
/usr/sbin/mariadbd(+0xe6845b)[0x558469f8645b]
|
/usr/sbin/mariadbd(+0xcfb233)[0x558469e19233]
|
/usr/sbin/mariadbd(_Z34mysql_discard_or_import_tablespaceP3THDP10TABLE_LISTb+0xf9)[0x5584699787f9]
|
/usr/sbin/mariadbd(_ZN33Sql_cmd_discard_import_tablespace7executeEP3THD+0xac)[0x5584699f0fec]
|
/usr/sbin/mariadbd(_Z21mysql_execute_commandP3THDb+0x4a7e)[0x5584698d7b3e]
|
/usr/sbin/mariadbd(_Z11mysql_parseP3THDPcjP12Parser_state+0x1e7)[0x5584698d8d67]
|
/usr/sbin/mariadbd(_Z16dispatch_command19enum_server_commandP3THDPcjb+0x156d)[0x5584698db5fd]
|
/usr/sbin/mariadbd(_Z10do_commandP3THDb+0x138)[0x5584698dd328]
|
/usr/sbin/mariadbd(_Z24do_handle_one_connectionP7CONNECTb+0x3af)[0x5584699ec9af]
|
/usr/sbin/mariadbd(handle_one_connection+0x5d)[0x5584699eccfd]
|
/usr/sbin/mariadbd(+0xc43ce2)[0x558469d61ce2]
|
/lib/x86_64-linux-gnu/libpthread.so.0(+0x7ea7)[0x7f2d6e1b4ea7]
|
/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7f2d6ddbba2f]
|
|
|
Trying to get some variables.
|
Some pointers may be invalid and cause the dump to abort.
|
Query (0x7f2cd8010be0): ALTER TABLE `questionnaire` IMPORT TABLESPACE
|
|
|
Connection ID (thread ID): 37
|
Status: NOT_KILLED
|
|
|
Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off,hash_join_cardinality=off
|
|
|
The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains
|
information that should help you find out what is causing the crash.
|
Writing a core file...
|
Working directory at /var/lib/mysql
|
Resource Limits:
|
Limit Soft Limit Hard Limit Units
|
Max cpu time unlimited unlimited seconds
|
Max file size unlimited unlimited bytes
|
Max data size unlimited unlimited bytes
|
Max stack size 8388608 unlimited bytes
|
Max core file size unlimited unlimited bytes
|
Max resident set unlimited unlimited bytes
|
Max processes unlimited unlimited processes
|
Max open files 1073741816 1073741816 files
|
Max locked memory 8388608 8388608 bytes
|
Max address space unlimited unlimited bytes
|
Max file locks unlimited unlimited locks
|
Max pending signals 126657 126657 signals
|
Max msgqueue size 819200 819200 bytes
|
Max nice priority 0 0
|
Max realtime priority 0 0
|
Max realtime timeout unlimited unlimited us
|
Core pattern: |/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h
|
|
|
Kernel version: Linux version 6.7.4-200.fc39.x86_64 (mockbuild@de0c58eb5f524c20963d3b29334043cc) (gcc (GCC) 13.2.1 20231205 (Red Hat 13.2.1-6), GNU ld version 2.40-14.fc39) #1 SMP PREEMPT_DYNAMIC Mon Feb 5 22:21:14 UTC 2024
|
Attachments
Issue Links
- relates to
-
-
- Closed
-