Patches item #1803180, was opened at 2007-09-26 21:43
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will_quan
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Category: modules
Group: ver 1.2.x
>Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Will Quan (will_quan)
Assigned to: Henning Westerholt (henningw)
Summary: New Sleepcat DB Module
Initial Comment:
All,
Please consider adding the following module to the Openser
codebase.
The attached tarball contains the source and docs to a new
module named 'sleepycat'. This is a DB module that
incorporates the Berkeley DB in Openser. Berkeley DB is not
a relational DB, but rather a high-performance embedded DB
kernel.
The Berkeley DB offers a couple of architectures:
1. Concurrent Data Store (CDS)
2. Transaction Data Store
This module uses the CDS model. One of the main differences
between these architectures is DB recovery and robustness
(Please refer to the Berkeley DB for full details). In a
nutshell, the onus of recovery is on the application (e.g.
openser). This modules contains a recovery program
utils/sleepycat/sc_recover that fulfills this need.
Like other DB modules, the DB must be created before Openser
can be started. There is a script scripts/sleepycat.sh that
can be used to create the DB once the Berkeley DB is
installed.
**Important** Berkeley DB v4.6.19 contains a bug that will
most certainly result in deadlock. There is a patch
available for Berkeley DB 4.6.19, and the fix is to be
sourced in the next release of 4.6. For now I recommend 4.5
(older version should work too).
Special thanks to the authors of dbtext and postgesql
modules. Some of this code may look familiar to you all .
dbtext - Daniel-Constantin Mierla
postgres - Greg Fausak, Andy Fullford, Norman Brandinger
Regards,
William Quan
Cisco Systems
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>Comment By: Will Quan (will_quan)
Date: 2007-09-27 08:56
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klaus,
i do not mind changing the name if it makes more sense to
people.
henning,
I was working from the openser 1.2 branch.
90% of dev and testing was on FreeBSD (and MacOS). Limited
desktop testing
on Fedora 6.
As for the DB versions, I used 4.6.19 and 4.5.20.
This thread has a necessary patch to DB v4.6.19, if you want
to to that
route.
http://forums.oracle.com/forums/thread.
jspa?threadID=551806&tstart=15
-will
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Comment By: Klaus Darilion (klaus_darilion)
Date: 2007-09-27 04:41
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hi! shouldn't we name the module "berkeley_db"
instead of sleepycat? I
think berkeley DB is more known than sleepycat.
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Comment By: Henning Westerholt (henningw)
Date: 2007-09-27 02:37
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Hello Will,
that module sounds really interesting, thank you for the
contribution!
>From what version of openser did you use some code, 1.2
branch or trunk?
And what version was tested?
I'll review it tomorow and probably integrate it into the
trunk, if there
are no issues.
Cheers,
Henning
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