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From Emmanuel Lecharny <>
Subject Re: [ApacheDS] Forking JDBM
Date Sat, 08 Jul 2006 11:06:00 GMT
Alex Karasulu a écrit :

> Hi,
> While profiling the server searching for memory leaks I found some 
> problems in JDBM where it manages a free list (LinkedList of BlockIo 
> elements).  JDBM seems to grow this list and hold BlockIo objects with 
> 8K chunks of buffers which are not freed when available memory is low. 
> This leads to a large amount of memory consumption forcing the jvm to 
> gc frequently which kills performance.  Don't know how to fix this at 
> the present moment but there's got to be a simple way to fix this 
> problem.
> Right now there's not much we can do but go into the the JDBM code to 
> fix it.  The JDBM community is virtually dead.  There has been very 
> little activity there.  Rather than trying to get them to work on our 
> issues I'd like to fork JDBM for these reasons:
> 1). It's tiny ~10K LOC
> 2). It can be optimized for ApacheDS' needs
> 3). The JDBM community developers can come here if they like
> 4). Don't think incubating JDBM will work because of the dead community
> 5). JDBM is BSD licensed which means we can fork it
> Thoughts?
> Alex
Do we need a vote to do that ? In any case, you get my +1 !


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