Configurable NettyThreadFactory daemon parameter

[gnefedevMilaboratory]

Feature description

I would like to configure an application with daemon = false.

I used Micronauts to generate HTTP client and it prevents JVM from shutting down without daemon = false. For now, I override NettyThreadFactory bean.

[avirlrma]

@graemerocher I would like to work on this.

[graemerocher]

@avirlrma contributions welcome

[avirlrma]

Hi @graemerocher @gnefedevMilaboratory,

Wanted to confirm on the requirement here: Is to create a NettyThreadFactory with given value of daemon parameter? (Instead of current behaviour where it is created with daemon = false.)

[gnefedev]

It's right to set the default value false for httpClient. But as I see, it's also used in server config and it's not right for it. I may be wrong, of course.

[yawkat]

@gnefedev I think the confusion here is about the value of daemon: Setting it to true allows shutting down the VM without shutting down those threads, setting it to false keeps the JVM alive. Looking at the code, the default seems to be false. Does this match your observation? And then I assume you want a config option to set it to true?

[gnefedev]

I'm sorry, I confused value in my comment.
Yes, with true VM is able to shut down and can't without.
Yes, I want to set config option to true. If it will not break server mode, that's a good solution.