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)

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