Win a copy of Head First Android this week in the Android 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
  • Tim Cooke
  • Junilu Lacar
Sheriffs:
  • Rob Spoor
  • Devaka Cooray
  • Jeanne Boyarsky
Saloon Keepers:
  • Jesse Silverman
  • Stephan van Hulst
  • Tim Moores
  • Carey Brown
  • Tim Holloway
Bartenders:
  • Jj Roberts
  • Al Hobbs
  • Piet Souris

EHCache Server locking

 
Ranch Hand
Posts: 30
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi,

I am trying to improve performance of my application.

The problem we are facing right now is with EH Cahe 1.4.1. Whenever it tries to refresh data from DB. If the Db is slow the whole application gets locked down.

Considering ver 2.4.2 of ehcache which has many improvements obviously, I can see a new parameter 'clearOnFlush'. Just wanted to know if this can help me solve the problem.

Also I am considering changing the strategy used while refreshing data, concurrency-strategy. would be great if someone can suggest which one shall apply here.

Information is not quite clear on net.

Thanks,
 
Greenhorn
Posts: 9
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
We built a mechanism in my previous project.

It was a high performance web application (website) of a big airline company hosting their enterprise content site.

We use ehcache internally to cache the objects / even HTML fragments for faster rendering.

Static Content (HTML), we cache it indefinitely and ensure that the cache is flushed by the Content Management Server responsible to publish content. It creates a JMS message and pushes the message into a TOPIC configured within WebLogic App Server. Within the application there is generic Cache listener which listens to the topic and receive the message and acts accordingly.

Since the app is deployed in a cluster all cluster nodes receive the message from the topic.

 
Ranch Hand
Posts: 218
Hibernate Spring Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Sameer, to me the problem seems to be with the way that you are refreshing cache. It seems like too many queries are being fired leading to application slowdown.
 
You showed up just in time for the waffles! And this tiny ad:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
https://coderanch.com/wiki/718759/books/Building-World-Backyard-Paul-Wheaton
reply
    Bookmark Topic Watch Topic
  • New Topic