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Re: Do we need Berkeley DB's Concurrent Data Store for Concurrency in OpenLDAP

To: dfas dfas <knightacesg@yahoo.com>
Subject: Re: Do we need Berkeley DB's Concurrent Data Store for Concurrency in OpenLDAP
From: Howard Chu <hyc@symas.com>
Date: Wed, 16 Dec 2009 16:46:53 -0800
Cc: openldap-software@openldap.org
In-reply-to: <599926.62235.qm@web76206.mail.sg1.yahoo.com>
References: <599926.62235.qm@web76206.mail.sg1.yahoo.com>
User-agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.9.3a1pre) Gecko/20091121 SeaMonkey/2.0a1pre Firefox/3.0.3

dfas dfas wrote:

Hi,

I am currently looking to implement an OpenLDAP solution with a BDB
backend

that needs to support concurrent access by multiple users. As there are
different flavours of the Berkeley DB available, can I just ask if we need to
purchase the Concurrent Data Store version of Berkeley DB or can I just stay
with the Data Store version?


I ask this because OpenLDAP already has its own concurrency support and I

was just wondering if this implies that OpenLDAP will ensure that BDB will
only be accessed thru a single thread of control?

Any help will be greatly appreciated. Thanks.


OpenLDAP uses BerkeleyDB's Transactional Data Store.

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/

References:
- Do we need Berkeley DB's Concurrent Data Store for Concurrency in OpenLDAP
  - From: dfas dfas <knightacesg@yahoo.com>

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