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Monthly Archives: November 2009

How to handle Memory Leaks in Java/J2EE Applications ?

In this article, I have tried to analyze the various causes which may lead to Memory Exception.

Once an ‘OutOfMemoryException’ is thrown, how best can it be handled has been discussed in this artilce.

OutOfMemoryException is thrown when there is not sufficient available memory to carry out a requested activity. In this article, I have tried to illustrate the different methods by which memory leaks can be handled in Web Applications.

 

More Info : http://vinaytechs.blogspot.com/2009/11/how-to-handle-memory-leaks-in-javaj2ee.html

 
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Posted by on November 26, 2009 in Java Framework

 

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Performance Benchmarks a Webserver

ApacheBench is a command line computer program for measuring the performance of HTTP web servers, in particular the Apache HTTP Server. It was designed to give an idea of the performance that a given Apache installation can provide. In particular, it shows how many requests per second the server is capable of serving.

The ab tool comes bundled with the standard Apache source distribution, and like the Apache web server itself, is free, open source software and distributed under the terms of the Apache License.

More Info : Performance Benchmarks a Webserver

 
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Posted by on November 23, 2009 in Web

 

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Inside Apple iPhone

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iPhone Processor

  • Application Processor (Differs in iPhone, iPhone 3G and 3GS)
  • Baseband Processor (Modem – Again differs with versions)
  • Both of these processor belongs to ARM category

 

 

 

More Info : Inside Apple iPhone

 
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Posted by on November 23, 2009 in Iphone

 

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Dynamically Repeating Control/Container in Adobe Flex

Introduction

  • Used for repeating simple UI components
  • Repetition can be controlled by an array
  • Repeater components look like containers in the code but they are not containers
  • Repeaters don’t have automatic layout functionality of containers.
  • Purpose of using: To form a series of subcomponents as per the contents of a specified data provider.
  • For dealing with large amount of data; use controls like HorizontalList, TileList, and List

More Info : Dynamically Repeating Control/Container in Adobe Flex

 
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Posted by on November 23, 2009 in Web

 

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Tips & Tricks for SQUID (Proxy) Server

This article will be helpful to improve your squid performance in any hectic and slow bandwidth / traffic kind of scenario. This will also helpful to the organization, who will use the only one Squid Server Hardware and giving the internet access to more then 1000 users. Even, you can bypass or stream line your SSL / SAFE ports for any outgoing traffic, which needs to be allow.

More Info : Tips & Tricks for SQUID (Proxy) Server

 
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Posted by on November 23, 2009 in server

 

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Overview Of CICS [Customer Information Control System]

CICS (Customer Information Control System) is a transaction server that runs primarily on IBM mainframe systems under z/OS and z/VSE.

CICS is a transaction manager designed for rapid, high-volume online processing. This processing is mostly interactive (screen-oriented), but background transactions are possible.

While CICS has its highest profile among financial institutions such as banks and insurance companies, over 90 percent of Fortune 500 companies are reported to rely on CICS (running on z/OS) for their core business functions[citation needed], along with many government entities. CICS is used in bank-teller applications, ATM systems, industrial production control systems, insurance applications, and many other types of interactive applications.

More Info : Overview Of CICS [Customer Information Control System]

 
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Posted by on November 23, 2009 in CICS

 

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Asynchronous mailing through Tomcat6 and Seam 2.1.2

This article assumes Seam application is already configured on Tomcat.

Steps to implement Asynchronous mailing

  • Copy following mail related jars from jboss-seam-2.1.2\lib to the projects’ \WEB-INF\lib folder.
    1. Jboss-seam-mail.jar
    2. Mail.jar
    3. Activation.jar
  • Copy quartz.jar file from jboss-seam-2.1.2\lib to the projects’ \WEB-INF\lib folder.

More Info : Asynchronous mailing through Tomcat6 and Seam 2.1.2

 
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Posted by on November 23, 2009 in Java Framework

 

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