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From Erik Drolshammer <erik-...@fjas.no>
Subject Re: Clustering for HA
Date Wed, 25 Mar 2009 07:19:06 GMT
Bruce Snyder wrote:
> On Tue, Mar 24, 2009 at 1:17 AM, Erik Drolshammer <erik-dev@fjas.no> wrote:
>> Bruce Snyder wrote:
>>> On Mon, Mar 23, 2009 at 10:00 AM, Erik Drolshammer <erik-dev@fjas.no>
>>> wrote:
>> It seems this setup use DerbyDB and not Kahastore. Is this the only option?
>> Are there alternative setups that I might try?
> 
> Yes, the journaledJDBC element will use Apache Derby by default, but
> you can specify a bean to use as the datasource in the activemq.xml so
> that you can use whatever database you prefer.
> 
> Other persistence options include non-journaled JDBC as noted here:
> 
> http://activemq.apache.org/persistence.html#Persistence-JDBCPersistencewithoutJournaling
> 
> If you're using JDBC-based persistence, then you should look at using
> JDBC master/slave:
> 
> http://activemq.apache.org/jdbc-master-slave.html
> 
> Another persistence option is Kaha persistence as described here:
> 
> http://activemq.apache.org/persistence.html#Persistence-KahaPersistence
> 
> With this style of persistence, you should use the KahaDB master/slave:
> 
> http://activemq.apache.org/kahadb-master-slave.html

I don't want to use JDBC if I can avoid it. I thought I _had_ to after 
reading http://activemq.apache.org/shared-file-system-master-slave.html.

When I removed the JDBC-element and thus used KahaDB things seems to be 
working again. Strange that the derbydb didn't work at all. (One message 
dispatch per minute instead of 500 per second or so normally.)


> This is the default persistence mechanism in ActiveMQ 5.x. If you're
> using this style of persistence, then you should be using the shared
> filesystem master/slave:
> 
> http://activemq.apache.org/shared-file-system-master-slave.html

Looks promising. Any idea when it will be released?


Thanks for you help. :)

FYI;
When we have verified our setup properly I want to create a jira issue 
suggesting documentation extensions. Until then, I use 
http://wiki.community.objectware.no/display/smidigtonull/ActiveMQ+-+clustering+for+High+Availability

as scratch area.


-- 
Best regards,

Erik Drolshammer

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