I have experienced a Node crash while resizing innodb buffer pool…
cluster node hanged during downsizing operation and after 10 minutes colapsed completely.
I can provide full log but not on public forum - there is a lot of sensitive informations inside
used version :mysqld 5.7.30-33-57-log
anybody have any thoughts what might caused it ? I belived its supposed to be “safe” operation…
2021-06-22T16:28:47.276100Z 0 [ERROR] [FATAL] InnoDB: Semaphore wait has lasted > 600 seconds. We intentionally crash the server because it appears to be hung.
2021-06-22 18:28:47 0x7fa33e938700 InnoDB: Assertion failure in thread 140339106252544 in file ut0ut.cc line 922
InnoDB: We intentionally generate a memory trap.
InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
InnoDB: If you get repeated assertion failures or crashes, even
InnoDB: immediately after the mysqld startup, there may be
InnoDB: corruption in the InnoDB tablespace. Please refer to
InnoDB: MySQL :: MySQL 5.7 Reference Manual :: 14.22.2 Forcing InnoDB Recovery
InnoDB: about forcing recovery.
16:28:47 UTC - 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.
Attempting to collect some information that could help diagnose the problem.
As this is a crash and something is definitely wrong, the information
collection process might fail.
Please help us make Percona XtraDB Cluster better by reporting any
bugs at https://jira.percona.com/projects/PXC/issues
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 423348 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
stack_bottom = 0 thread_stack 0x40000
You may download the Percona XtraDB Cluster operations manual by visiting
Percona XtraDB Cluster – The MySQL Clustering Solution. You may find information
in the manual which will help you identify the cause of the crash.