Re: A really strange one..
- From: "Andrew Kerber" <andrew.kerber@xxxxxxxxx>
- To: kmoore@xxxxxxxxxxxx
- Date: Wed, 26 Sep 2007 12:54:56 -0500
Yes, it was on aix as a matter of fact.
On 9/26/07, Keith Moore <kmoore@xxxxxxxxxxxx> wrote:
>
> Was it on AIX?
>
> We have seen similar strange things there. I don't remember all the
> details,
> but at one point there were no background processes, yet we could still
> logon
> using sqlplus! Couldn't do anything, but it said we were connected.
>
> When we tried to startup the database, it also told us that it was already
> running.
>
> Keith
>
> > Ok, I just ran into a strange one this morning. US central time that
> is.
> >
> > We are moving our clustered databases to new servers, and we put one
> > database onto the new hardware for initial testing. We restored from a
> > backup, and got both instances running. Today when I did a
> >
> > ps -ef | grep pmon
> >
> > I saw two pmon processes going for the single instance. I have no idea
> what
> > could have caused that. So I set my oracle_sid, path, oracle_Home and
> > shutdown the instance. What do you know, there was still one pmon
> process
> > running. I did a kill -9 on that one.
> >
> > Then I go to start the instance again. And I get this error: ORA 01081
> > "cannot start already-running ORACLE - shut it down first"
> >
> > I did a ps -ef | grep oracle, didnt get anything (except my user process
> of
> > course).
> >
> > I finally googled and found one possibility, a locked shared memory
> segment.
> >
> > Sure enough
> >
> > ipcs -a | grep dba
> >
> > returned a large segment of memory that was still locked. So I ran this
> > (found on the same site) and released it:
> >
> > ipcs -a | grep dba | perl -ane 'system "ipcrm -$F[0] $F[1]"'
> >
> >
> > My question is, has anyone seen this before, or know what causes it?
> >
> >
> >
> > --
> > Andrew W. Kerber
> >
> > 'If at first you dont succeed, dont take up skydiving.'
> >
>
>
>
--
Andrew W. Kerber
'If at first you dont succeed, dont take up skydiving.'
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