Re: Unrecognized service - Mailing list pgsql-general

From Adrian Klaver
Subject Re: Unrecognized service
Date
Msg-id 53508E88.5040601@aklaver.com
Whole thread Raw
In response to Re: Unrecognized service  (Augori <augori@gmail.com>)
Responses Re: Unrecognized service  (Augori <augori@gmail.com>)
List pgsql-general
On 04/17/2014 05:55 PM, Augori wrote:
> Hi Adrian,
>
> I don't know the answer to #1. Was that a wildcard search?

It was a grep of the processes running. You replied with this:

"Here's what the ps command gives:

root(at)server# ps ax | grep post
  9165 pts/1    S+     0:00 grep post"

If postgres was running it should have shown up above. Just seemed to be
at odds with later post:

"
woohoo!

service postgresql-9.2 status

(pid  9924) is running...
"

All I can figure is at some point between the first and second post the
service for Postgres was started again. There just was no mention of
that so I was trying to figure out the sequence of events.

>
> As for #2, I should have been more clear, that's not a check that it
> does every night.  I just ran that check when it seemed to be down.  It
> has been a long time to since I've worked with it, so I didn't correctly
> recall that I needed to look for postgresql-9.2 and not just postgresql.
>    The problem came up because the nightly process (a Python script that
> uses psycopg2) tried to, but couldn't connect to postgresql-9.2 server.
>
> Does that make more sense?

Sort of, if the Python script is the only thing hitting the database.
Otherwise I would have expected other 'users' to notice the database was
down. Furthermore, psycopg2 does not know service names, it connects to
a port, host, database as a user. So unless those where changed I would
expect it to keep on connecting, unless the service was stopped, which
seems to follow what I mention above. At any rate everything worked out.

>
>
> On Tue, Apr 15, 2014 at 12:08 AM, Adrian Klaver
> <adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>> wrote:
>
>     On 04/14/2014 08:25 PM, Augori wrote:
>
>         Hi all,
>
>         woohoo!
>
>         service postgresql-9.2 status
>
>         (pid  9924) is running...
>
>
>             It seems that I was looking for the service by the wrong
>         name, as
>         John guessed correcty.    Also, Tom, it's good to know that the data
>         won't necessarily go away if I need to reinstall at some point.
>
>
>     Well that still leaves two questions unanswered.
>
>     1) Why did the postgres process not show up in the ps ax output?
>
>     2) Why is the nightly process doing a status check on postgresql not
>     postgresql-9.2 ?
>
>      >From the original post:
>
>
>     # service postgresql status
>     postgresql: unrecognized service
>
>
>
>
>         thank you so much for the messages from all three of you.  Your
>         rapid
>         responses were very encouraging.
>
>
>
>     --
>     Adrian Klaver
>     adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>
>
>


--
Adrian Klaver
adrian.klaver@aklaver.com


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