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Date:      Mon, 12 May 2008 15:24:30 -0400
From:      Mike Meyer <mwm@mired.org>
To:        Anthony Pankov <ap00@mail.ru>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: BDB corrupt
Message-ID:  <20080512152430.3720683e@mbook.local>
In-Reply-To: <1663320218.20080512223531@mail.ru>
References:  <op.uavxx8ip2n4ijf@duckjen.nextgentel.no> <9FC19AC2-DAD8-418C-8B9C-F129DEC58CEF@gmail.com> <15336578.20080512123806@mail.ru> <200805121153.00809.jonathan%2Bfreebsd-hackers@hst.org.za> <1663320218.20080512223531@mail.ru>

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On Mon, 12 May 2008 22:35:31 +0400 Anthony Pankov <ap00@mail.ru> wrote:
> Because BDB:
> 1. do not need additional installation
> 2. is part of base system which mean it is mature, reliable and stable

BDB in the base system is mature, reliable and stable *for what it's
used for in the base system.* So long as your requirements are covered
by that usage, you'll be ok.

The uses I know of for BDB in the base system all consist of databases
of relatively small items that are changed infrequently, and usually
with a locking mechanism. From what you've said, this doesn't describe
your requirements.

More importantly, from what other people are saying, your requirements
are ones for which it's known that BDB is *not* reliable, or otherwise
unsuitable. In particular, an effort is underway to allow parallel
ports builds, which implies concurrent access to the database, which
is a known source of problems for BDB.

	  <mike




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