Win a copy of TDD for a Shopping Website LiveProject this week in the Testing forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Ron McLeod
  • Jeanne Boyarsky
  • Tim Cooke
Sheriffs:
  • Liutauras Vilda
  • paul wheaton
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Tim Holloway
  • Stephan van Hulst
  • Carey Brown
  • Frits Walraven
Bartenders:
  • Piet Souris
  • Himai Minh

JMS : Difference between a Persistent and a Non Persistent Message

 
Ranch Hand
Posts: 2234
Eclipse IDE Firefox Browser Redhat
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi

This question is with respect to persistent messages , and non persistent messages .

As per the docs it says that for persistent messages the QueueSender.send() blocks until it recivies an acknowledgement .

Here my question is what is the difference between a persistent messages , and non persistent messages
Thanks in advance .

 
Greenhorn
Posts: 4
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
message can be persisted to avoid message lost [for example jvm crash]. message can persisted to db/file system based on the messaging service configuration. in this case when the message service gets a message it makes sure it persist the message successfully before it sends ack.

hth
Gopi
 
Ravi Kiran Va
Ranch Hand
Posts: 2234
Eclipse IDE Firefox Browser Redhat
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
thanks Gopi , that was a nice answer ,

Assume a scenario in case of a Persistent Messages , assume that the Message has been persisted in the File system / or in a database and has been picked up from the Queue from a MDB , so waht is the appropaite time to delete that Message from the Filesystem / Database ??

Thanks .

 
Ranch Hand
Posts: 489
Eclipse IDE Tomcat Server Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

so waht is the appropaite time to delete that Message from the Filesystem / Database


None.
The JMS server does that when it receives an acknowledgement that the Message has been consumed.

ram.
 
Ranch Hand
Posts: 40
Eclipse IDE Tomcat Server Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
In Details: http://openmessaging.blogspot.com/2009/04/durable-messages-and-persistent.html

In Short: https://chamibuddhika.wordpress.com/2011/05/21/jms-concepts-persistent-and-durable/
 
The only cure for that is hours of television radiation. And this tiny ad:
free, earth-friendly heat - a kickstarter for putting coin in your pocket while saving the earth
https://coderanch.com/t/751654/free-earth-friendly-heat-kickstarter
reply
    Bookmark Topic Watch Topic
  • New Topic