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- From: ramesh@informix.com (Nagar Ramesh)
- Newsgroups: comp.databases.informix
- Subject: Re: Recovery
- Message-ID: <1993Jan10.064144.198@informix.com>
- Date: 10 Jan 93 06:41:44 GMT
- References: <1inm5vINN3gm@emory.mathcs.emory.edu>
- Sender: news@informix.com (Usenet News)
- Organization: Informix Software, Inc.
- Lines: 38
-
- In article <1inm5vINN3gm@emory.mathcs.emory.edu> unifi!goofy.unifi.com!bharat@uunet.UU.NET (Bharat Shah) writes:
- >Welcome to the world of STUCK FAST RECOVERY ...
- >I have faced this problem on more than one occassion and I have been asked to
- >wait for version 5.0 where HIGHT_WATER settings can solve this problem.
- >
- >Bharat.
-
- hi bharat,
-
- i don't know the version of the engine you have, but if you have 4.10
- you can edit the tbconfig file to include the two long transaction water
- marks - LTXHWM and LTXEHWM which are commonly set to 75 and 80
- respectively (percentage values).
-
- LTXHWM is the Long Transactio High Water Mark - set to 75% which tells
- online to roll transactions back when the logs are 75% full.
-
- LTEXHWM is the Long Transaction Exclusive High Water Mark - set to a
- value > LTXHWM, usually 80% , which when reached, gives
- "exclusive" access of the logical logs to the transaction
- currently being rolled back.
-
- just a brief explanation but i hope it helps.
-
- regards,
-
- ramesh.
-
-
-
-
-
- >
- >========================================================================
- >Bharat Shah Voice: (508)-663-7570
- >Unifi Communications Corp. Fax: (508)-663-7543
- >4 Federal St, Billerica, Mass 01821, USA uunet!bharat@unifi.com
- >========================================================================
-