• 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 all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Liutauras Vilda
  • Campbell Ritchie
  • Tim Cooke
  • Bear Bibeault
  • Devaka Cooray
Sheriffs:
  • Jeanne Boyarsky
  • Knute Snortum
  • Junilu Lacar
Saloon Keepers:
  • Tim Moores
  • Ganesh Patekar
  • Stephan van Hulst
  • Pete Letkeman
  • Carey Brown
Bartenders:
  • Tim Holloway
  • Ron McLeod
  • Vijitha Kumara

J2EE Server - main features  RSS feed

 
Greenhorn
Posts: 8
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello Lovers J2EE I humbly ask you a help: What are the main features of a J2EE server? In terms of physical and system as well. I would (if one could) notions (simple ones) these points (or any other help also):
- Fundamentals, topology and characteristics typical of environments with high availability and scalability; concepts of clusters (load balancing, fail-over and replication of state) and techniques for tuning and troubleshooting. One more thing: what would configure HEAP for server?

See if anyone has anything it will be interesting (Google is not helping much). Maybe someone has already stated this type of documentation, or thought "in my business is + or - well, it will be very useful and good.

Well now thanks to all.

Ricardo
 
Bartender
Posts: 10336
Eclipse IDE Hibernate Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The JEE specification is the best resource for describing the services an application server must provide. You'll get the details from that document.

Beyond that, specifics of tuning and troubleshooting techniques are best described by the documentation of the specific application server you use (informed by the results of your own performance testing). There is no universal "set the heap to n and all will be well" rule.
 
Ricardo Marzano
Greenhorn
Posts: 8
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
OK but there is no parameter or setting that should be followed? Something in the configuration files for the J2EE performance is the best? And the heap? In truth I want to know is what it is and if it made a physical or logical configuration (system).

ThankĀ“s a lot.
Best regards.

Ricardo
 
Paul Sturrock
Bartender
Posts: 10336
Eclipse IDE Hibernate Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator


OK but there is no parameter or setting that should be followed? Something in the configuration files for the J2EE performance is the best?


No. Think about it: without knowing what your application does and how it is used how can you know what amount of memory it will need? What works for one server may bediferent on another.


And the heap? In truth I want to know is what it is and if it made a physical or logical configuration (system).


I'm not sure I really understand this question, but the "heap" is an area of memory allocated to the JVM to allow it to perform dynamic memory allocation. you define its size using JVM parameters and ultimately it is limited by the physical constraints of the memory available.
 
Ricardo Marzano
Greenhorn
Posts: 8
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Yes, I wonder about HEAP as a proof that question was asked: In a J2EE server to 8 GB of memory, as a "heap" would set?

Yet even thank you.

Sincerely Ricardo
 
Paul Sturrock
Bartender
Posts: 10336
Eclipse IDE Hibernate Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator


In a J2EE server to 8 GB of memory, as a "heap" would set?


The only answer you can give to that is "it depends" followed by a long discussion of the parameters involved in performance testing and server configuration.
 
Consider Paul's rocket mass heater.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!