From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
---|---|
To: | Jon Lapham <lapham(at)jandr(dot)org> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: Restart after poweroutage |
Date: | 2006-09-24 22:55:00 |
Message-ID: | 20060924225500.GC13591@alvh.no-ip.org |
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Lists: | pgsql-general |
Jon Lapham wrote:
> [root(at)bilbo ~]# ps -A | grep -i post
> 30760 ? 00:00:00 postmaster
> 30762 ? 00:00:00 postmaster
> 30764 ? 00:00:00 postmaster
> 30765 ? 00:00:00 postmaster
> 30766 ? 00:00:00 postmaster
>
> ...is that normal to see 5 of them running?
Yes, because they are not really postmasters; they are child processes,
which can be backends, the logger process, the background writer, etc.
Try with this:
ps u -C postmaster
That should show more detail, and save you the "grep". Or try something
like this:
$ ps -w -C postmaster -o pid,ppid,args
PID PPID COMMAND
15812 15808 /pgsql/install/00orig/bin/postmaster
15814 15812 postgres: writer process
15815 15812 postgres: stats collector process
15830 15812 postgres: alvherre alvherre [local] idle in transaction
Here you can see that there is a postmaster with PID 15812, and several
processes which are children of that one.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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