Re: [xmlblaster] Some QOS Questions

[Heinrich Götzger <Heinrich.Goetzger at exploding-systems.de>]

Adam,

hey, good papers, we may publish a copy on our site, if you agree.

A few notes from my site:
The  </isDurable> stores the message via the Persistence Interface in
either FileDriver or Xindice, the default is not durable, the message is
lost, when the server goes down.

The </isVolatile> brings the server to delete the message, after it has
been delivered. This has nothing todo with durability. The default is not
volatile. Please note that volatile messages force high load of the server
since it has to add and remove every message to the DOM-Tree in the
server.

hang on!

regards

Heinrich

On 1 Oct 2002, Adam Williams wrote:

> As I'm figuring the ins-n-outs of xmlBlaster I'm trying to put together
> a presentation on the topic.  I've posted the slides I have so far
> concerning QOS at ftp://kalamazoolinux.org/pub/pdf/xmlBlaster.pdf  I'd
> appreciate it if someone would take a look and offer their opinion on
> the accuracy, although there isn't much there yet.
>
> But I've come up with a few questions that the documentation seems iffy
> about -
>
> 1 - Does the sender of the message actually set the "<sender></sender>"
> tags or are these added when the message is recieved?
>
> 2 - Does the priority tags really have any effect?  On the order the
> messages are delivered, etc...?
>
> 3 - On a published message the examples in XMLQoS show an XPATH
> statement in the <destination> tags.  Is this actually used?  I though
> XPATH queries were run against the keys of queued messages?
> --
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