[MDEV-25992] Galera 3 Server crash with signal 6 after RBR event apply failed - Jira

Details

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 10.3.29
Fix Version/s: 10.3.32
Component/s: Data Manipulation - Delete, Galera, Platform Debian, Storage Engine - InnoDB
Labels:
- crash
- galera
- innodb
Environment:

Hide
3 Node MariaDB / Galera cluster with ProxySQL v2.0.15-20-g32bb92cd proxy in front.

10.3.29-MariaDB-1:10.3.29+maria~bionic-log
  wsrep_patch: wsrep_25.24
  wsrep_provider: 25.3.33(r15123524)

OS: Ubuntu 20.04 LTS
Kernel: 4.15.0-144-generic

Show
3 Node MariaDB / Galera cluster with ProxySQL v2.0.15-20-g32bb92cd proxy in front. 10.3.29-MariaDB-1:10.3.29+maria~bionic-log   wsrep_patch: wsrep_25.24   wsrep_provider: 25.3.33(r15123524) OS: Ubuntu 20.04 LTS Kernel: 4.15.0-144-generic

Description

We have a 3 node cluster in our UAT environment, with all traffic going to node 3, an incoming delete conflict causes nodes 1 & 2 to crash. This causes node 3 to go non-primary (as expected).

The crash is always on the non-write nodes (either one of them or both crash) that are applying the deletes concurrently.

the delete is always on the same table named "blobs" with a self-referencing foreign key:

Of note, the logged SQL for the conflict appears to have some garbled data on the end of it (that I can't quite capture in this form):

"SQL: DELETE FROM blobs WHERE id = '7432858'???`^S^F"

The table has been rebuilt with an alter table engine = innodb, yet the issue still occours.

The crashes started 5 days after we upgraded from:

10.3.24-MariaDB-1:10.3.24+maria~bionic-log
patch: wsrep_25.24
prov: 25.3.29(r3902)

... and on a related note but I must emphasise different cluster entirely; our Production cluster which has yet to be upgraded (version as above) is uttering "[ERROR] InnoDB: Record field 15 len 18446744073709551615" which I've traced back to the same collection of tables in the same schema. I've been unable to identify any corruption in the tables themselves (by selecting out data and forcing index usage). The UAT cluster for which this report relates hasn't uttered these messaged, but I've a sneeking suspicion there is some, even if loose relationship between the issues.

Detail of the crash in the UAT env

*************************** 1. row ***************************

       Table: blobs

Create Table: CREATE TABLE `blobs` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `original_blob_id` int(11) DEFAULT NULL,

  `sys_name` varchar(100) DEFAULT NULL,

  `storage_loc` varchar(50) DEFAULT NULL,

  `storage_loc_pref` varchar(50) DEFAULT NULL,

  `storage_loc_specific` varchar(50) DEFAULT NULL,

  `save_path` varchar(255) DEFAULT NULL,

  `file_url` varchar(255) DEFAULT NULL,

  `filename` varchar(255) NOT NULL,

  `filesize` int(11) NOT NULL,

  `content_type` varchar(50) NOT NULL,

  `authcode` varchar(50) NOT NULL,

  `blob_hash` varchar(40) NOT NULL,

  `is_media_upload` tinyint(1) NOT NULL,

  `title` varchar(255) NOT NULL,

  `dim_w` int(11) NOT NULL,

  `dim_h` int(11) NOT NULL,

  `date_created` datetime NOT NULL,

  `is_temp` tinyint(1) NOT NULL,

  PRIMARY KEY (`id`),

  KEY `IDX_896C3E356BBE2052` (`original_blob_id`),

  KEY `authcode_idx` (`authcode`),

  KEY `storage_loc_idx` (`storage_loc`,`storage_loc_pref`),

  KEY `sys_name_idx` (`sys_name`),

  KEY `date_created_idx` (`date_created`,`is_temp`),

  KEY `storage_loc_pref_idx` (`storage_loc_pref`),

  CONSTRAINT `FK_896C3E356BBE2052` FOREIGN KEY (`original_blob_id`) REFERENCES `blobs` (`id`) ON DELETE SET NULL

) ENGINE=InnoDB AUTO_INCREMENT=7700386 DEFAULT CHARSET=utf

node 1 crash:

2021-06-22 12:35:02 11 [Note] WSREP: cluster conflict due to high priority abort for threads:

2021-06-22 12:35:02 11 [Note] WSREP: Winning thread:

   THD: 11, mode: applier, state: executing, conflict: no conflict, seqno: 89327026

   SQL: DELETE FROM blobs WHERE id = '7432858'???`^S^F

2021-06-22 12:35:02 11 [Note] WSREP: Victim thread:

   THD: 15, mode: applier, state: idle, conflict: no conflict, seqno: 89327028

   SQL: NULL

2021-06-22 12:35:02 0 [ERROR] WSREP: Trx 89327026 tries to abort slave trx 89327028. This could be caused by:

        1) unsupported configuration options combination, please check documentation.

        2) a bug in the code.

        3) a database corruption.

 Node consistency compromized, need to abort. Restart the node to resync with cluster.

210622 12:35:02 [ERROR] mysqld got signal 6 ;

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: 10.3.29-MariaDB-1:10.3.29+maria~bionic-log

key_buffer_size=134217728

read_buffer_size=134217728

max_used_connections=26

max_threads=1002

thread_count=24

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 262821945 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 0x12c00000

/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x560ee4349b8e]

/usr/sbin/mysqld(handle_fatal_signal+0x515)[0x560ee3dde8c5]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x12980)[0x7f9ca6c54980]

/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7f9ca688ffb7]

/lib/x86_64-linux-gnu/libc.so.6(abort+0x141)[0x7f9ca6891921]

/usr/sbin/mysqld(+0x90a914)[0x560ee3f68914]

/usr/sbin/mysqld(+0x90f83c)[0x560ee3f6d83c]

/usr/sbin/mysqld(handle_manager+0x1f3)[0x560ee3bf0a83]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x76db)[0x7f9ca6c496db]

/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7f9ca697271f]

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 /srv/galera-uat/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        0                    unlimited            bytes

Max resident set          unlimited            unlimited            bytes

Max processes             15430                15430                processes

Max open files            4096                 4096                 files

Max locked memory         67108864             67108864             bytes

Max address space         unlimited            unlimited            bytes

Max file locks            unlimited            unlimited            locks

Max pending signals       15430                15430                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/share/apport/apport %p %s %c %d %P %E

node 2 crash:

2021-06-22 12:35:02 15 [Note] WSREP: cluster conflict due to high priority abort for threads:

2021-06-22 12:35:02 15 [Note] WSREP: Winning thread:

   THD: 15, mode: applier, state: executing, conflict: no conflict, seqno: 89327026

   SQL: DELETE FROM blobs WHERE id = '7432858'???`^S^F

2021-06-22 12:35:02 15 [Note] WSREP: Victim thread:

   THD: 9, mode: applier, state: executing, conflict: no conflict, seqno: 89327028

   SQL: DELETE FROM blobs WHERE id = '7432867'???`^S^F

2021-06-22 12:35:02 0 [ERROR] WSREP: Trx 89327026 tries to abort slave trx 89327028. This could be caused by:

        1) unsupported configuration options combination, please check documentation.

        2) a bug in the code.

        3) a database corruption.

 Node consistency compromized, need to abort. Restart the node to resync with cluster.

210622 12:35:02 [ERROR] mysqld got signal 6 ;

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: 10.3.29-MariaDB-1:10.3.29+maria~bionic-log

key_buffer_size=134217728

read_buffer_size=134217728

max_used_connections=8

max_threads=1002

thread_count=23

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 262821945 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...

2021-06-22 12:35:02 9 [Warning] WSREP: conflict state after RBR event applying: 1, 89327028

2021-06-22 12:35:02 9 [Warning] WSREP: RBR event apply failed, rolling back: 89327028

stack_bottom = 0x0 thread_stack 0x12c00000

/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x5591922ceb8e]

/usr/sbin/mysqld(handle_fatal_signal+0x515)[0x559191d638c5]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x12980)[0x7ffb20e45980]

/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7ffb20a80fb7]

/lib/x86_64-linux-gnu/libc.so.6(abort+0x141)[0x7ffb20a82921]

/usr/sbin/mysqld(+0x90a914)[0x559191eed914]

/usr/sbin/mysqld(+0x90f83c)[0x559191ef283c]

/usr/sbin/mysqld(handle_manager+0x1f3)[0x559191b75a83]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x76db)[0x7ffb20e3a6db]

/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7ffb20b6371f]

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 /srv/galera-uat/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        0                    unlimited            bytes

Max resident set          unlimited            unlimited            bytes

Max processes             15430                15430                processes

Max open files            4096                 4096                 files

Max locked memory         67108864             67108864             bytes

Max address space         unlimited            unlimited            bytes

Max file locks            unlimited            unlimited            locks

Max pending signals       15430                15430                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/share/apport/apport %p %s %c %d %P %E

Attachments

- Sort By Name
- Sort By Date
- Ascending
- Descending
- Thumbnails
- List
- Download All

gdb.114.125551.1624967167.gz
2021-06-29 16:30
40 kB
Glyn Astill
mariadb1_uat.txt
2021-06-22 16:38
4 kB
Glyn Astill

Issue Links

is caused by

MDEV-25114 Crash: WSREP: invalid state ROLLED_BACK (FATAL)

Closed

Activity

Ascending order - Click to sort in descending order

Glyn Astill added a comment - 2021-06-24 10:43

A quick update:

I've a gut feeling this is related to some sort of bug with foreign keys (see below for how many reference this table). Could be wrong.
I'll try and post a better trace shortly, at least with the symbols

MariaDB [(none)]> select * from information_schema.referential_constraints where constraint_schema = 'deskpro_trial' and referenced_table_name =  'blobs';

+--------------------+-------------------+---------------------+---------------------------+--------------------------+------------------------+--------------+-------------+-------------+------------------------------------+-----------------------+

| CONSTRAINT_CATALOG | CONSTRAINT_SCHEMA | CONSTRAINT_NAME     | UNIQUE_CONSTRAINT_CATALOG | UNIQUE_CONSTRAINT_SCHEMA | UNIQUE_CONSTRAINT_NAME | MATCH_OPTION | UPDATE_RULE | DELETE_RULE | TABLE_NAME                         | REFERENCED_TABLE_NAME |

+--------------------+-------------------+---------------------+---------------------------+--------------------------+------------------------+--------------+-------------+-------------+------------------------------------+-----------------------+

| def                | deskpro_trial     | FK_896C3E356BBE2052 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | blobs                              | blobs                 |

| def                | deskpro_trial     | FK_8A52D85AED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | article_comment_attachments        | blobs                 |

| def                | deskpro_trial     | FK_52C34BC7ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | communitytopic_comment_attachments | blobs                 |

| def                | deskpro_trial     | FK_C1AE81E58FE8AA9B | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | email_accounts                     | blobs                 |

| def                | deskpro_trial     | FK_C1AE81E5A63D3520 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | email_accounts                     | blobs                 |

| def                | deskpro_trial     | FK_DD4790B1ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | article_attachments                | blobs                 |

| def                | deskpro_trial     | FK_EC63B2F0ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | labels_blobs                       | blobs                 |

| def                | deskpro_trial     | FK_6EF14C99ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | news_attachments                   | blobs                 |

| def                | deskpro_trial     | FK_16AEB8D43B50817B | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | departments                        | blobs                 |

| def                | deskpro_trial     | FK_9FB18F87ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | download_comment_attachments       | blobs                 |

| def                | deskpro_trial     | FK_28166A26F0187A77 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | people                             | blobs                 |

| def                | deskpro_trial     | FK_F3CC6D4BED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | ticket_proc_log                    | blobs                 |

| def                | deskpro_trial     | FK_CC264F12ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | community_topic_attachments        | blobs                 |

| def                | deskpro_trial     | FK_427C1C7FF0187A77 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | organizations                      | blobs                 |

| def                | deskpro_trial     | FK_8728BA3AED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | topic_comment_attachments          | blobs                 |

| def                | deskpro_trial     | FK_832870B8ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | content_template_attachments       | blobs                 |

| def                | deskpro_trial     | FK_F06B468DED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | tickets_attachments                | blobs                 |

| def                | deskpro_trial     | FK_4B73A4B5ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | RESTRICT    | downloads                          | blobs                 |

| def                | deskpro_trial     | FK_F4D361D4ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | RESTRICT    | import_log_blobs                   | blobs                 |

| def                | deskpro_trial     | FK_CD563A19ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | people_files                       | blobs                 |

| def                | deskpro_trial     | FK_290FA7A5ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | email_account_logs                 | blobs                 |

| def                | deskpro_trial     | FK_57564A24ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | news_comment_attachments           | blobs                 |

| def                | deskpro_trial     | FK_B6A217CDED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | RESTRICT    | voice_recordings                   | blobs                 |

| def                | deskpro_trial     | FK_483B9D66ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | RESTRICT    | download_revisions                 | blobs                 |

| def                | deskpro_trial     | FK_AF6C0A203B50817B | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | agent_teams                        | blobs                 |

| def                | deskpro_trial     | FK_2C1DD95EED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | splash_image_property              | blobs                 |

| def                | deskpro_trial     | FK_88B2A69EED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | organization_files                 | blobs                 |

| def                | deskpro_trial     | FK_96E733E1ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | icon_property                      | blobs                 |

| def                | deskpro_trial     | FK_5C5E30A6ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | RESTRICT    | voice_missed_agent_calls           | blobs                 |

| def                | deskpro_trial     | FK_9195FF45D5F3B632 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | sendmail_sources                   | blobs                 |

| def                | deskpro_trial     | FK_9195FF45ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | sendmail_sources                   | blobs                 |

| def                | deskpro_trial     | FK_B4A87CA0ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | RESTRICT    | app2_app_asset_blob                | blobs                 |

| def                | deskpro_trial     | FK_BE17F9F2ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | RESTRICT    | voice_assets                       | blobs                 |

| def                | deskpro_trial     | FK_6F9D0D3DD5F3B632 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | SET NULL    | email_sources                      | blobs                 |

| def                | deskpro_trial     | FK_6F9D0D3DED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | email_sources                      | blobs                 |

| def                | deskpro_trial     | FK_FA590180ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | brand_assets                       | blobs                 |

| def                | deskpro_trial     | FK_E67B9F2ED3E8EA5  | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | snippet_changelog_blob             | blobs                 |

| def                | deskpro_trial     | FK_9CD2100EED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | app_assets                         | blobs                 |

| def                | deskpro_trial     | FK_D7E238A1ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | snippet_translation_blob           | blobs                 |

| def                | deskpro_trial     | FK_4E537458ED3E8EA5 | def                       | deskpro_trial            | PRIMARY                | NONE         | RESTRICT    | CASCADE     | theme_set_assets                   | blobs                 |

+--------------------+-------------------+---------------------+---------------------------+--------------------------+------------------------+--------------+-------------+-------------+------------------------------------+-----------------------+

40 rows in set (0.090 sec)

Glyn Astill added a comment - 2021-06-28 11:31 - edited

Latest crash shows as follows

2021-06-28 15:30:02 16 [Note] WSREP: cluster conflict due to high priority abort for threads:

2021-06-28 15:30:02 16 [Note] WSREP: Winning thread:

   THD: 16, mode: applier, state: executing, conflict: no conflict, seqno: 91293259

   SQL: DELETE FROM blobs WHERE id = '7513677'úêÙ`^S^F

2021-06-28 15:30:02 16 [Note] WSREP: Victim thread:

   THD: 9, mode: applier, state: idle, conflict: no conflict, seqno: 91293261

   SQL: NULL

2021-06-28 15:30:02 0 [ERROR] WSREP: Trx 91293259 tries to abort slave trx 91293261. This could be caused by:

        1) unsupported configuration options combination, please check documentation.

        2) a bug in the code.

        3) a database corruption.

 Node consistency compromized, need to abort. Restart the node to resync with cluster.

210628 15:30:02 [ERROR] mysqld got signal 6 ;

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: 10.3.30-MariaDB-1:10.3.30+maria~bionic-log

key_buffer_size=134217728

read_buffer_size=134217728

max_used_connections=6

max_threads=1002

thread_count=21

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 262821960 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 0x12c00000

mysys/stacktrace.c:175(my_print_stacktrace)[0x56409ac40a4e]

sql/signal_handler.cc:218(handle_fatal_signal)[0x56409a6d58f5]

/lib/x86_64-linux-gnu/libpthread.so.0(+0x12980)[0x7fdaf3022980]

linux/raise.c:51(__GI_raise)[0x7fdaf2c5dfb7]

stdlib/abort.c:81(__GI_abort)[0x7fdaf2c5f921]

/usr/sbin/mysqld(+0x90b274)[0x56409a85f274]

/usr/sbin/mysqld(+0x9101bc)[0x56409a8641bc]

handler/ha_innodb.cc:18831(Gis_read_stream::check_next_symbol(char))[0x56409a4e6e73]

nptl/pthread_create.c:463(start_thread)[0x7fdaf30176db]

x86_64/clone.S:97(clone)[0x7fdaf2d4071f]

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 /srv/galera-uat/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             15430                15430                processes

Max open files            102400               102400               files

Max locked memory         67108864             67108864             bytes

Max address space         unlimited            unlimited            bytes

Max file locks            unlimited            unlimited            locks

Max pending signals       15430                15430                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/share/apport/apport %p %s %c %d %P %E

Appears to show the abort in a specific WITH_WSREP ifdef block,

What's the relevance of check_next_symbol ? This looks like it's something to do with gstream.cc. We have no geographic types in the schema this activity happens on.

Updated with libc symbols - unfortunately apport threw my core file away - hopefully get it on the next crash

Glyn Astill added a comment - 2021-06-28 11:31 - edited Latest crash shows as follows 2021 - 06 - 28 15 : 30 : 02 16 [Note] WSREP: cluster conflict due to high priority abort for threads: 2021 - 06 - 28 15 : 30 : 02 16 [Note] WSREP: Winning thread: THD: 16 , mode: applier, state: executing, conflict: no conflict, seqno: 91293259 SQL: DELETE FROM blobs WHERE id = '7513677' úêÙ`^S^F 2021 - 06 - 28 15 : 30 : 02 16 [Note] WSREP: Victim thread: THD: 9 , mode: applier, state: idle, conflict: no conflict, seqno: 91293261 SQL: NULL 2021 - 06 - 28 15 : 30 : 02 0 [ERROR] WSREP: Trx 91293259 tries to abort slave trx 91293261 . This could be caused by: 1 ) unsupported configuration options combination, please check documentation. 2 ) a bug in the code. 3 ) a database corruption. Node consistency compromized, need to abort. Restart the node to resync with cluster. 210628 15 : 30 : 02 [ERROR] mysqld got signal 6 ; 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: 10.3 . 30 -MariaDB- 1 : 10.3 . 30 +maria~bionic-log key_buffer_size= 134217728 read_buffer_size= 134217728 max_used_connections= 6 max_threads= 1002 thread_count= 21 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 262821960 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 0x12c00000 mysys/stacktrace.c: 175 (my_print_stacktrace)[ 0x56409ac40a4e ] sql/signal_handler.cc: 218 (handle_fatal_signal)[ 0x56409a6d58f5 ] /lib/x86_64-linux-gnu/libpthread.so. 0 (+ 0x12980 )[ 0x7fdaf3022980 ] linux/raise.c: 51 (__GI_raise)[ 0x7fdaf2c5dfb7 ] stdlib/abort.c: 81 (__GI_abort)[ 0x7fdaf2c5f921 ] /usr/sbin/mysqld(+ 0x90b274 )[ 0x56409a85f274 ] /usr/sbin/mysqld(+ 0x9101bc )[ 0x56409a8641bc ] handler/ha_innodb.cc: 18831 (Gis_read_stream::check_next_symbol( char ))[ 0x56409a4e6e73 ] nptl/pthread_create.c: 463 (start_thread)[ 0x7fdaf30176db ] x86_64/clone.S: 97 (clone)[ 0x7fdaf2d4071f ] 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 /srv/galera-uat/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 15430 15430 processes Max open files 102400 102400 files Max locked memory 67108864 67108864 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 15430 15430 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/share/apport/apport %p %s %c %d %P %E Appears to show the abort in a specific WITH_WSREP ifdef block, What's the relevance of check_next_symbol ? This looks like it's something to do with gstream.cc. We have no geographic types in the schema this activity happens on. Updated with libc symbols - unfortunately apport threw my core file away - hopefully get it on the next crash

Marko Mäkelä added a comment - 2021-07-01 09:33

glynastill, I took a quick look at this. I do not think that the messages InnoDB: Record field 15 len 18446744073709551615 are related to the rest. I suppose that those messages can be output by CHECK TABLE. Apparently we have a bug that rec_get_nth_field_offs() is returned a 64-bit value len=ULINT_UNDEFINED, while the function rec_validate() expects a 32-bit value, such as UNIV_SQL_NULL. Please file a separate bug for that (with a repeatable test case). I do not think that we have seen that in internal testing.

Marko Mäkelä added a comment - 2021-07-01 09:33 glynastill , I took a quick look at this. I do not think that the messages InnoDB: Record field 15 len 18446744073709551615 are related to the rest. I suppose that those messages can be output by CHECK TABLE . Apparently we have a bug that rec_get_nth_field_offs() is returned a 64-bit value len=ULINT_UNDEFINED , while the function rec_validate() expects a 32-bit value, such as UNIV_SQL_NULL . Please file a separate bug for that (with a repeatable test case). I do not think that we have seen that in internal testing.

Jan Lindström (Inactive) added a comment - 2021-07-01 10:50

Based on attached stack trace this is another issue related to bg_wsrep_kill_trx() that is fixed on ~~MDEV-25114~~.

Jan Lindström (Inactive) added a comment - 2021-07-01 10:50 Based on attached stack trace this is another issue related to bg_wsrep_kill_trx() that is fixed on MDEV-25114 .

Glyn Astill added a comment - 2021-07-01 12:49

Thank you very much @Marko Mäkelä and @Jan Lindström

Regarding the InnoDB field length issues - I've been unable to reproduce the issue; if I manage to do so I'll open a ticket. For now I'm just going to watch it closely to see if I can find any other symptoms other than the error.

I'm assuming the only immediate workaround is a revert to 10.3.27 or previous?

Glyn Astill added a comment - 2021-07-01 12:49 Thank you very much @Marko Mäkelä and @Jan Lindström Regarding the InnoDB field length issues - I've been unable to reproduce the issue; if I manage to do so I'll open a ticket. For now I'm just going to watch it closely to see if I can find any other symptoms other than the error. I'm assuming the only immediate workaround is a revert to 10.3.27 or previous?

Jan Lindström (Inactive) added a comment - 2021-10-30 06:30

commit 157b3a637faa17f933e65adf1f533f0471025dad

Jan Lindström (Inactive) added a comment - 2021-10-30 06:30 commit 157b3a637faa17f933e65adf1f533f0471025dad

People

Assignee:: Jan Lindström (Inactive)

Reporter:: Glyn Astill

Votes:: 3 Vote for this issue

Watchers:: 7 Start watching this issue

Dates

Created:: 2021-06-22 16:39

Updated:: 2021-10-30 06:30

Resolved:: 2021-10-30 06:30

Git Integration

Error rendering 'com.xiplink.jira.git.jira_git_plugin:git-issue-webpanel'. Please contact your Jira administrators.

MariaDB Server

Details

Description

Attachments

Attachments

Issue Links

Activity

People

Dates

Git Integration