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JMS publish and subscribe

Syed Saifuddin
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Joined: Sep 01, 2003
Posts: 130
Q 1) please give me the right reason why in jms the message Publish rate is much lower than the message recieve rate by subscriber
Q 2) for persistance messageing and durable subscription I understand that if jms provider server is running then
if i run publisher and wait until all the message is publish and then run subscriber then the subscriber must get message.
but I can't get the same result i.e if publisher and subscriber both are running then the message is passed but if any one is not running then the message is lost


Thank You & Best Regards,

Syed Saifuddin,
Senior Software Engineer

SAP Oracle AIX & Java Training
http://www.socialinet.com
Kyle Brown
author
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Joined: Aug 10, 2001
Posts: 3892
    
    5
I personally can't make sense out of either of these questions. Can you give us more context, or try rephrasing them?
Kyle


Kyle Brown, Author of Persistence in the Enterprise and Enterprise Java Programming with IBM Websphere, 2nd Edition
See my homepage at http://www.kyle-brown.com/ for other WebSphere information.
Anand Sidharth
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Joined: Dec 17, 2003
Posts: 44
Hi,
I could get either of the questions.
Following may help
Usually A alient that subscribes
to a topic can consume only messages published after the client has created a subscription, and the subscriber must continue to be active in order for it to consume messages.
But u have Durable subscriptions that can receive messages
sent while the subscribers are not active. Durable subscriptions provide the
flexibility and reliability of queues but still allow clients to send messages to many recipients.
TopicSession.createSubscriber method creates a nondurable sub-scriber.
you can use the TopicSession.createDurableSubscriber method to create a durable subscriber.
Hope this helps......
Anand Sidharth
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Joined: Dec 17, 2003
Posts: 44
oops I am sorry
forgive me for being fat-fingered
actually the essential was missing "I COULDN'T understand both the quetion that were asked"
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: JMS publish and subscribe