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From Alex Karasulu <>
Subject Re: svn commit: r1239586 - in /directory/apacheds/trunk: all/pom.xml jdbm-partition/pom.xml protocol-ldap/pom.xml
Date Sat, 04 Feb 2012 00:55:40 GMT
On Sat, Feb 4, 2012 at 2:44 AM, Emmanuel Lecharny <>wrote:

> On 2/3/12 10:51 PM, Alex Karasulu wrote:
>> This is a really bold move here Emmanuel. The txn branch is not even alpha
>> and a serious change that will effect the server. I thought this was
>> something we would slowly start to transition into the main branch of
>> development.
>> I don't know if it should require a vote but maybe we should talk about
>> this a little bit no?
>> Point to the modified version of JDBM.
> Sure. let me explain why I did that move, and why it's not critical.
> Having a MVCC backend could allow us to solve the problem we have with
> concurrent modifications and searches. We don't necessarily need to have
> the full in-memory MVCC Selcuk is working on in its branch in order to
> benefit from part of what he already have done : if we protect the
> modifications in the jdbm-partition against concurrent access to the
> backend, then searches and modifications could probably safely be executed
> concurrently.
> I need to test this part, and I don't want to do that in a branch, because
> it's too much a pain to merge it back while we are fixing many other issues
> in the server.
> Hopefully, this move is just impacting three poms and reverting back to
> jdbm is just a matter to point back to the previous version : just a breeze.
> I should have told the list about this change before doing it, my bad.
> Sadly, I made a mistake and had to commit the modifications in the poms
> because I broke the trunk this morning with a partial commit. This is why
> we now point to jdbm2. This can easily be fixed, and we can safely revert
> to jdbm.
> --
> Regards,
> Cordialement,
> Emmanuel L├ęcharny
Thanks for clarifying and giving a thorough explanation. I was just
surprised to see the move and wanted your thoughts.

Best Regards,
-- Alex

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