Interesting, I hadn't realized this behavior had changed.
Jared
On Sunday 27 May 2001 18:10, Reardon, Bruce (CALBBAY) wrote:
> Hi,
>
> For information.
>
> At various times there has been a lot of discussion about deleting the
> alert.log.
>
> Looking through Metalink I found the following note which describes the
> behaviour change between 7.3.4 and 805 and above.
>
> Hope it is of help.
>
> Regards,
> Bruce
>
>
> Doc ID: Note:122401.1
> Type: BULLETIN
> Status: PUBLISHED
> Content Type: TEXT/PLAIN
> Creation Date: 18-OCT-2000
> Last Revision Date: 14-MAY-2001
>
>
> Problem Description
> -------------------
>
> The Oracle background processes has an open file descriptor on the
> alert.log.
> When the database is up and running it continually holds this file
> descriptor
> open. This was not the case in 7.3.4, but is true for 8.0.5 to 8.1.7.
>
> This poses the question: What if the database is up and the alert.log
> gets too large. Do I have to shutdown the database to release the open
> file descriptor on the alert.log, then deal with the large alert.log?
>
>
> Solution Description
> --------------------
>
> You are able to copy the alert.log while the database is up and running.
>
> 1) Create an empty file:
> (example: touch nullfile.log)
>
> 2) Replace the old alert.log with the new empty file:
> (example: mv nullfile.log alert<sid>.log)
>
> The running database experiences no affects when doing this.
>
>
> Explanation
> -----------
>
> Having the continual open file descriptor on the alert.log is intended
> behaviour for the database.
>
>
> References
> ----------
>
> [BUG:1388186] OPEN FILE DESCRIPTORS HELD BY ORACLE BACKGROUND PROCESSES
> ON ALERT.LOG FILE
>
>
> Additional Search Words
> -----------------------
>
> delete alert
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--
Author: Jared Still
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