MySQL Bugs: #91777: main.basedir fails frequently

Bug #91777	main.basedir fails frequently
Submitted:	24 Jul 2018 11:17	Modified:	25 Jul 2018 0:55
Reporter:	Dyre Tjeldvoll	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Compiling	Severity:	S3 (Non-critical)
Version:		OS:	Any
Assigned to:		CPU Architecture:	Any

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Description:
The test main.basedir used to fail sporadically. Lately the failures come more frequently.

Root cause appears to be that running mysqld -D --init-file=x where x issues a shutdown can make the daemon go away before is has signaled a successful start to the launching grand-parent process. 

How to repeat:
Run test on a powerful machine

Suggested fix:
Using the --init-file option with shutdown was just done for simplicity. Re-write test case to launch the daemon aganinst the MTR datadir, connect and then perform a normal shutdown using the --shutdown-server command.

Posted by developer:
 
Fixed in 8.0.14.

Work was done for test suite. No changelog entry needed.