RE: control file parallel write

From: Steve Adams <steve.adams_at_ixora.com.au>
Date: Thu, 10 Aug 2000 03:30:32 +1000
Message-Id: <10584.114194@fatcity.com>

Hello Siva,

Instance locks exist in the DLM of an OPS database. Many of them correspond directly with enqueues as in this case. There is a whole chapter devoted to this in my book.

Regards,
Steve Adams

http://www.ixora.com.au/
http://www.oreilly.com/catalog/orinternals/
http://www.christianity.net.au/

-----Original Message-----
From: Siva_Chintalapati [mailto:Siva_Chintalapati_at_satyam.com] Sent: Thursday, 10 August 2000 3:19
To: Multiple recipients of list ORACLE-L Subject: RE: control file parallel write

Hi,
Waht is Thread Instance Lock.What is the syntax. Regards
Siva

---

From: Steve Adams[SMTP:steve.adams_at_ixora.com.au] Reply To: ORACLE-L_at_fatcity.com
Sent: Monday, August 07, 2000 2:13 PM

To:     Multiple recipients of list ORACLE-L
Subject:        RE: control file parallel write

Hi Rajiv,
The thread instance lock (which corresponds to the RT enqueue) is used to detect instance death, whereas the checkpoint heartbeat that we have been talking about here is used to detect a "split brain" - that is, two instances having the database open but one or more of them being ignorant of the existence of the other.
I hope that's what you were asking ...
Regards,
Steve Adams

http://www.ixora.com.au/
http://www.oreilly.com/catalog/orinternals/
http://www.christianity.net.au/

-----Original Message-----
Sent: Monday, 7 August 2000 16:55
To: Multiple recipients of list ORACLE-L

       Can somebody tell me what is a lock on a thread by an instance.
       Rajiv

--
Author: Rajiv Gangadharan
  INET: Rajiv.Gangadharan_at_alltel.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).
--
Author: Steve Adams
  INET: steve.adams_at_ixora.com.au
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

Received on Wed Aug 09 2000 - 12:30:32 CDT