mysql version: 5.7.29
When importing the dump file of big data, the database is automatically restarted. Check the error log as follows:
2021-08-12T01:51:52.625334Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 4690ms. The settings might not be optimal. (flushed=155 and evicted=0, during the time.) InnoDB: ###### Diagnostic info printed to the standard error stream 2021-08-12T01:51:56.796554Z 0 [ERROR] [FATAL] InnoDB: Semaphore wait has lasted > 600 seconds. We intentionally crash the server because it appears to be hung. 2021-08-12 09:51:56 0x7f0a63a6d700 InnoDB: Assertion failure in thread 139682598278912 in file ut0ut.cc line 918 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: http://dev.mysql.com/doc/refman/5.7/en/forcing-innodb-recovery.html InnoDB: about forcing recovery. 01:51:57 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.