The Ultimate Guide to High Availability with MariaDB

Comments - Ubuntu 22.04. "Starting MariaDB database server mariadbd [fail]"

2 years, 3 months ago Marko Mäkelä
Re: Ubuntu 22.04. "Starting MariaDB database server mariadbd [fail]"

As far as I can tell, those messages would be output if io_setup() in libaio fails. Perhaps libaio support was removed from the WSL2 kernel in the update? Those messages should disappear if you configure innodb_use_native_aio=OFF.

The Linux kernel in Ubuntu 20.04 and later supports a newer interface io_uring. MariaDB Server 10.6 and later can be built with io_uring or libaio, but never with both.

 
2 years, 3 months ago Daniel Black
Re: Ubuntu 22.04. "Starting MariaDB database server mariadbd [fail]"

Related, Ubuntu 22.04 is the LTS Ubuntu version where io_uring became available.

5.10.60.1 is where uring is documented to be added https://docs.microsoft.com/en-us/windows/wsl/kernel-release-notes.

Before 5.12 (https://github.com/axboe/liburing/issues/246#issuecomment-816965961) uring requires a memory locked amount, so try raising that urlimit for the startup.

The warning shouldn't prevent mariadbd from starting. Is there another fatal error in the logs?

 
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