RE: interesting wait event

From: Bobak, Mark <Mark.Bobak_at_il.proquest.com>
Date: Tue, 28 Feb 2006 13:57:32 -0500
Message-ID: <AA29A27627F842409E1D18FB19CDCF2706FCE199@AABO-EXCHANGE02.bos.il.pqe>

A quick Google search yielded nothing, and a quick MetaLink search yielded this (all too brief) description:

"This event is related to dynamic remastering which I would not use until 10.2
So if you are have performance problems because of DRM you should disable the same using
_gc_affinity_time=0"

Note that the reference to 10.2, above, is because the original poster who asked about the event reported running 10.1.

I suppose it makes a certain amount of sense that a wait on a dynamic remastering event would occur when adding a datafile? I guess I'd try not adding datafiles during heavy loads....beyond that, if the event is really a problem, you probably ought to open an SR and get more info. I wouldn't recommend setting an undocumented parameter, particularly now that dynamic remastering is *presumably* ok in 10.2....

-Mark

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Mark J. Bobak
Senior Oracle Architect
ProQuest Information & Learning

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-----Original Message-----

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of john d parker Sent: Tuesday, February 28, 2006 1:08 PM To: oracle-l
Subject: interesting wait event

'gcs drm freeze in enter server mode'

Anyone have any indepth info on this event? It was captured in the wild during heavy load, a datafile was being added near that time. DB version 10.2 RAC on Solaris, raw datafiles.

John

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http://www.freelists.org/webpage/oracle-l Received on Tue Feb 28 2006 - 12:57:32 CST