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Posted to users@activemq.apache.org by Martin Lichtin <li...@yahoo.com.INVALID> on 2015/09/08 12:56:22 UTC

Priority Support

Can someone explain (or understand) why KahaDb implements only three levels of priority?I wish it'd implement a few more, ideally the 10 levels JMS specifies.Also, is there an alternative backing store that implements all levels?

Re: Priority Support

Posted by Gary Tully <ga...@gmail.com>.

the jdbc store supports 0-9.
in kahadb there is an index per priority which makes queries a little
slower. Currently there is no way to disable the priority checks in kahadb.
Supporting 3 priorities is a trade off between functionality and perf in
the general case.

On Tue, 8 Sep 2015 at 11:59 Martin Lichtin <li...@yahoo.com.invalid>
wrote:

> Can someone explain (or understand) why KahaDb implements only three
> levels of priority?I wish it'd implement a few more, ideally the 10 levels
> JMS specifies.Also, is there an alternative backing store that implements
> all levels?
>
>
>