Re: [HACKERS] How do I get the backend server into gdb?

> 
> I need to debug this connection problem I am having with Access97.  My
> question is how can I get the new Postgres backend that starts up for Access
> into debug (gdb)?  I can get the PostMaster open in gdb.
> 
> Thanks, Michael
> 

$ postgres -h
postgres: illegal option -- h
Usage: postgres [options] [dbname]
	...
        -W              wait N seconds to allow attach from a debugger

I added the -W option for this purpose. You should start the postmaster
with the following option:

    postmaster -o '-W 15' ...

The -W option is passed to the backend which sleeps 15 seconds before doing
any work. In the meantime you have the time to do a ps, find the backend pid
and attach gdb to the process.

Obviously you can't do that in a production environment because it adda a
fixed delay for each connection which will make your users very angry.

-- 
Massimo Dal Zotto

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|  Massimo Dal Zotto               email: dz@cs.unitn.it               |
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