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From Kiran Ayyagari <kayyag...@apache.org>
Subject Re: Disabling transactions in an embedded ApacheDS to boost performance
Date Thu, 07 Mar 2013 14:01:14 GMT
if you have 'enough' memory and the number of entries you inject is
reasonable then
you can use the in-memory partition, AvlPartition.

just inject it in the   @CreatePartition annotation

            @CreatePartition(
                name = "example",
                type = AvlPartition.class,
                ...

On Thu, Mar 7, 2013 at 7:12 PM, Piotr Kubowicz <
pkubowicz@antennasoftware.com> wrote:

> Is there a way to disable transactions in ApacheDS?
>
> I am using DefaultDirectoryServiceFactory to create a directory service,
> add one JDBM partition for content and use this instance for running
> integrated tests of my own code.
>
> Because this is an instance created and dropped for each test case, I
> don't care about safe shutdown, transactions (no concurrent modifications)
> and so on.
>
> Currently I am using ApacheDS 2.0.0-M7 for this purpose, but this version
> has serious bugs (like
> https://issues.apache.org/jira/browse/DIRSERVER-1727) and forces me to
> use strange workarounds for them in my code.
>
> However, using newer versions is not an alternative for me at the moment
> because of performance problems. I measured adding performance for my code
> when only changed thing was version of ApacheDS artefacts taken from Maven:
>
> 2.0.0-M7:  110-210 adds/sec
> 2.0.0-M8:   10-11 adds/sec
> 2.0.0-M9:    8-10 adds/sec
> 2.0.0-M10:   1.6-1.7 adds/sec
> 2.0.0-M11:   1.5-1.8 adds/sec
>
> I know versions of ApacheDS after M7 introduced transactions, but in my
> narrow use case I don't need them at all, and speed is the most imporant
> factor.
>
> I tried to use Java reflection to call
> BaseRecordManager#disableTransaction() on an instance of record manager
> being part of my main partition (in 2.0.0-M11), but this did not change the
> performance. I don't see any public methods I can reach to try to modify
> something else.
>
>
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-- 
Kiran Ayyagari
http://keydap.com

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