Re: Mysql 8.0.11 failed to start after changing datadir location

[Yoav Ben Moha]

Hi,
SELIUX is disabled and the directory /mysql_data is writable for user mysql
i have test it using : touch 1111 with user mysql and it worked fine.

/var/log/mysqld.log shows:

2018-04-24T18:58:20.671477Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.11) MySQL Community Server - GPL.
2018-04-24T23:49:36.678658Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.11) starting as process 4514
2018-04-24T23:49:36.691556Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2018-04-24T23:49:36.691723Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2018-04-24T23:49:36.691762Z 0 [ERROR] [MY-010119] [Server] Aborting
2018-04-24T23:49:36.692348Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.11) MySQL Community Server - GP

It seems like it still try to initialize the originial location :
#datadir=/var/lib/mysql ????

Please advise
Thanks