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Home -> Community -> Mailing Lists -> Oracle-L -> RE: SWITCH LOGFILE Does Not Checkpoint
It is true, my own presumption is that Oracle is set to force a checkpoint at something like 90% of the redo log size. When you switch a log file the counter is not increased or something. That is my only guess. When I force the checkpoint I see it come up and finish almost immediately in the alert log. - E
>-----Original Message-----
>From: Khedr, Waleed [mailto:Waleed.Khedr_at_FMR.COM]
>Sent: Wednesday, August 08, 2001 3:03 PM
>To: Multiple recipients of list ORACLE-L
>Subject: RE: SWITCH LOGFILE Does Not Checkpoint
>
>
>What about the parameter log_checkpoint_to_alert?
>
>-----Original Message-----
>Sent: Wednesday, August 08, 2001 5:16 PM
>To: Multiple recipients of list ORACLE-L
>
>
>I just noticed that using ALTER SYSTEM SWITCH LOGFILE is not causing a
>checkpoint. Which cause the last redo group to remain
>archived but active.
>I had to force a checkpoint to get it to inactive state. The
>docs state:
>
>The SWITCH LOGFILE clause lets you explicitly force Oracle to
>begin writing
>to a new redo log file group, regardless of whether the files
>in the current
>redo log file group are full. When you force a log switch,
>Oracle begins to
>perform a checkpoint. Oracle returns control to you
>immediately rather than
>when the checkpoint is complete. To use this clause, your
>instance must have
>the database open.
>
>But I am sitting here looking tailing my alert log and no
>checkpoint occurs
>till I force it. Is this a bug? 8.1.6.0 AIX (I know I am
>patching soon!)
>
>- Ethan
>- http://www.geocities.com/epost1
>
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>Author: Post, Ethan
> INET: epost_at_kcc.com
>
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>Author: Khedr, Waleed
> INET: Waleed.Khedr_at_FMR.COM
>
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Post, Ethan INET: epost_at_kcc.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Wed Aug 08 2001 - 16:33:15 CDT
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