[ 
http://issues.apache.org/jira/browse/QPID-156?page=comments#action_12455616 ] 
            
Steven Shaw commented on QPID-156:
----------------------------------

We could also try ActiveMQ's Kaha store.

Another option is Perst - a low level odbms with store-like interface.

  http://www.garret.ru/~knizhnik/java.html

Perst is now developed as a commercial odbms product 
http://www.mcobject.com/perst/

However the author was kind enought to provide a link to the last release of 
the code under a friendly licence:

  http://www.garret.ru/~knizhnik/perst-249.zip   (MIT licence)

At some point it had favorable performance compared to BDB:

  http://www.garret.ru/~knizhnik/perstbench.html

After reviewing the design documentation though it looks like multithreaded 
performance could be an issue:

  http://www.garret.ru/~knizhnik/eoodbms.html

Another option is the Consus RDBMS from the same author. It includes a 
low-level store interface similar to Perst in some ways.

  http://www.garret.ru/~knizhnik/consus.html  (new BSD licence)


> Implement persistence to disk for Qpid
> --------------------------------------
>
>                 Key: QPID-156
>                 URL: http://issues.apache.org/jira/browse/QPID-156
>             Project: Qpid
>          Issue Type: New Feature
>          Components: Java Broker
>    Affects Versions: M1, M2
>            Reporter: Marnie McCormack
>            Priority: Minor
>
> Currently, we only provide an implementation of persistence in-memory using 
> Qpid code. For persistence to disk we use the Berkeley DB. Would be better to 
> offer an alternative imeplmentation which allows the use of Apache licensed 
> code for persistence to disk.
> Previously been discussion on dev list regarding best solution for this, 
> including appropriate API - using O/R mappers, JDBC, in-line SQL etc etc. 
> More implementation details to be added by assignee please prior to 
> progressing this change.

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