[MDEV-29529] changing a field by mistake to a table linked via the connect engine, crashes mariadb Created: 2022-09-14  Updated: 2022-10-17  Resolved: 2022-10-17

Status: Closed
Project: MariaDB Server
Component/s: Storage Engine - Connect
Affects Version/s: 10.6.9
Fix Version/s: N/A

Type: Bug Priority: Minor
Reporter: Philip orleans Assignee: Unassigned
Resolution: Incomplete Votes: 0
Labels: None
Environment:

Linux



 Description   

I forgot that a table was linked via de Connecte engine, and tried to change the default value for a column, ending in crash. Twice.

220914  0:10:36 [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: 10.7.5-MariaDB-1:10.7.5+maria~ubu2204
key_buffer_size=134217728
read_buffer_size=131072
max_used_connections=2
max_threads=65546
thread_count=3
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 25314143 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
 
Thread pointer: 0x7fd5d0000d48
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...



 Comments   
Comment by Alice Sherepa [ 2022-09-14 ]

Could you please add the test case to demonstrate the problem and error log? Please add SHOW CREATE TABLE for both tables. 10.6.9 or 10.7.5 version or both?

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