Re: Behaviour of bgworker with SIGHUP

Guillaume Lelarge wrote:
> Hi,
>
> Today, I tried to make fun with the new background worker processes in
> 9.3, but I found something disturbing, and need help to go further.

Thanks.

> Is it the work of the function (pointed by bgw_sighup) to get the new
> config values from the postmaster? and if so, how can I get these new
> values?

You probably want to have the sighup handler set a flag, and then call
ProcessConfigFile(PGC_SIGHUP) in your main loop when the flag is set.
Search for got_SIGHUP in postgres.c.

I think this (have a config option, and have SIGHUP work as expected)
would be useful to demo in worker_spi, if you care to submit a patch.

> I thought the configuration reloading would work just like a shared
> library but it doesn't seem so.

Yeah, you need to handle that manually, because you're running your own
process now.

--
Álvaro Herrera http://www.2ndQuadrant.com/
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