Re: Detaching from controlling terminal

On Tue, 2003-11-18 at 17:52, Shridhar Daithankar wrote:
> Andrey Mosienko wrote:
>
> > Shridhar Daithankar wrote:
> >
> >>Andrey Mosienko wrote:
> >>
> >>
> >>>We are using PostgreSQL about two years beginning from version 7.0.
> >>>I have one question about starting postmaster:
> >>> Is there way to detach it from the controlling terminal under FreeBSD?
> >>>
> >>>My situation: I start postmaster manually:
> >>>
> >>>su pgsql -c "/usr/local/pgsql/bin/pg_ctl
> >>>-D /usr/local/pgsql/data -l /usr/local/pgsql/log/pgsql.log start"
> >>
> >>You can either use pg_ctl or nohup. Using pg_ctl is recommended.
> >>
> >
> >
> > su pgsql -c "/usr/local/pgsql/bin/pg_ctl -D /usr/local/pgsql/data -l /usr/local/pgsql/log/pgsql.log start"
> > ^^^^^^^
>
> Damn.. Sorry I missed that. Usually pg_ctl detaches from terminal.
> > What is nohup?
>
> When you start a job with nohup and put it in background, the job keeps running
> even if terminal detaches.
>
> When a terminal closes, a sighup is delivered to all applications started from
> that terminal. Nohup just ignores it.
>
> man nohup for more details.
>
> Shridhar

Be aware that nohup lowers the priority of the process by default - this
can be undesirable for a server...

Stephen