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From nervousbadger <nervousbad...@googlemail.com>
Subject Re: KahaDB - log f
Date Mon, 20 Sep 2010 14:59:40 GMT

This is how we are considering implementing multiple message stores
(currently we are only looking at doing this for the KahaDB store):

1. Provide a new implementation of PersistenceAdapter, called
KahaDBMultiStorePersistenceAdapter that can be configured in the
activemq.xml file. This would contain multiple instances of KahaDBStore, and
would also store the mapping from destination name to KahaDBStore instance
(configured in persistence adapter element in the xml). We are not looking
at configuring this mapping using destination policies at the moment, as
this looks like it would require more substantial code changes that we don't
currently have time to implement. 

2. Modify the MessageDatabase class, to allow the filenames used for the
page and lock files to be configurable. These would default to the harcoded
names that are currently used. We would have one set of page and lock files
per KahaDBStore instance.

We feel that this allows us to add the functionality we require, while
having a minimal impact on the existing code.

Does this seem reasonable? 

Thanks,
Pete.
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