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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Shutdown Abort
Shutdown AbortAll I can say is that generally when I'm doing something
production, if I have to shut down the thing fast, I do a shutdown abort. In
fact, there are systems I've dealt with before that only a shutdown abort
would bring it down, and a shutdown immediate would hang it. I've worked at
probably 50+ clients in my Oracle years (someday I need to sit down and
actually count them!)
For every book I've written, every time I would shutdown one of my databases that I'm using for the book it would be a shutdown abort.
While I can not give you a hard number of how many shutdown aborts I've done, I'm sure it's a lot. Since 7.3, I've never had a database fail to come back up after a shutdown abort for any reason that could be attributed to the shutdown abort. Never.
RF
Robert G. Freeman
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-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Randy Johnson
Sent: Tuesday, July 03, 2007 7:08 AM
To: oracle-l_at_freelists.org
Subject: RE: Shutdown Abort
With all due respect this was not a controlled test. So I'd be carefull not to assume it was caused by the abort.
-Randy
Randy Johnson
Sr. Technical Consultant
Enkitec, LLP
Office ..... 817-255-3580 Mobile .... 817-564-6583 Email ..... randy.johnson_at_enkitec.com--
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Well… I think this goes towards the conversation about whether it is safe or not. No data is lost with TEMP… but others brought up the issue that the database could have been writing blocks to the datafiles just at that moment. (or tempfile)?
I don’t believe data would be lost… (what if log buffer was being flushed to redo log)? … This can be discussed separately, but my point goes to the argument that it saves time… which was what started the thread.
Does it save time, if the tempfile fails verification tests… or if a datafile needs recovery (aside from the fact that recovery is implicit with shutdown abort).
Perhaps if you already had the drop/create tempfile statements ready… you might say that in your particular situation, it saves time If you manually shutdown startup. But it doesn’t look like a particularly best practices type of thing to automate reliably, (meaning you can sleep through it).
…. I’m not drawing conclusions adamantly, but just pointing out what actually happened. (It was a test environment).
Joel Patterson
Database Administrator
joel.patterson_at_crowley.com
x72546
904 727-2546
From: Michael Haddon [mailto:m.haddon_at_tx.rr.com]
Sent: Tuesday, July 03, 2007 1:46 AM
To: Patterson, Joel; Oracle-L_at_Freelists
Subject: Re: Shutdown Abort
Hmmm.. I would be curious about what other data might be in a questionable state,...
Joel.Patterson_at_crowley.com wrote:
Update FYI:
I just did a shutdown abort on 10.2.0.1 and got:
ORA-01187: cannot read from file 201 because it failed verification tests.
Had to drop and re-create the TEMP tablespace….
Joel Patterson
Database Administrator
joel.patterson_at_crowley.com
x72546
904 727-2546
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Received on Tue Jul 03 2007 - 10:26:41 CDT
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