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FW: Subversion: [#6251] server lockups

From: Sander Striker <striker_at_apache.org>
Date: 2002-07-11 00:01:03 CEST

[Forwarded with permission]

-----Original Message-----
From: Keith Bostic [mailto:bostic@sleepycat.com]
Sent: 10 July 2002 21:56
To: striker@apache.org
Cc: support@sleepycat.com
Subject: Re: Subversion: [#6251] server lockups

> 2) We are seeing unexplicable lockups of the db environment. This is
> easily resolved by running db_recover -ve, but the lockup just shouldn't
> be happening. Maybe we are just doing something wrong, but that is
> best pointed out by someone who knows db4 through and through.

I agree the lockup shouldn't happen. :-)

> Could
> db not just try to 'recover' on error and try the operation again?

I'm not sure what you mean by this? If you're seeing deadlocks,
then trying the operation again won't help. Can you please tell
me more about what you meant in this sentence?

There are ways to cause Berkeley DB to return immediately if a
lock isn't available, but I don't think that's the problem.

Anyway, let's talk further about what you're doing and the symptom
you're seeing, and then I can suggest ways to fix or debug the


Keith Bostic
Sleepycat Software Inc. bostic@sleepycat.com
118 Tower Rd. +1-781-259-3139
Lincoln, MA 01773 http://www.sleepycat.com

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Received on Wed Jul 10 23:52:16 2002

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