[infinispan-dev] Cache store for MapDB (what used to be JDBM)

Randall Hauch rhauch at redhat.com
Tue Sep 3 12:36:32 EDT 2013


Looks good. Perhaps I'm missing something, but I don't see a way to persist to local disk with your cache store. Is that right? I see the advantage of having an off heap memory-based cache store, but your code is actually not too far away from a cache store that persists to a (memory-mapped) file. I'd love to see how that compares to a cache store based upon LevelDB. 

On Sep 3, 2013, at 10:55 AM, Ray Tsang <saturnism at gmail.com> wrote:

> Good timing - I just started an off-heap store for fun that uses mapdb direct memory db.
> https://github.com/saturnism/infinispan-cachestore-offheap
> 
> Please take a look!
> 
> 
> On Tue, Sep 3, 2013 at 6:13 AM, Randall Hauch <rhauch at redhat.com> wrote:
> Has anyone looked at writing a cache store that uses MapDB? It provides Maps, Sets and Queues backed by disk storage or off-heap memory, with MVCC and (non-JTA) transactions. The author previously wrote JDBM (multiple versions), and has recently ventured out on his own to focus on MapDB full-time. It's only at 0.9.5, but progressing quite nicely. I've been looking at it for other uses, and quite enjoy it.
> 
>         http://mapdb.org
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