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Java EE & Streaming Architectures

Posted by Hemos on from the a-better-cornerstone-for-a-better-building dept.

Amin Ahmad writes "Implementing a streaming architecture on a Java EE application server provides asymptotically better memory performance, and, hence, scalability, than current, widely-implemented, Java EE patterns endorsed by Sun. This article provides a concrete implementation of a streaming architecture and compares its scalability to two other, standard implementations: Remote EJB and Local EJB-based solutions. The implementation based on a streaming architecture comes out the hands-down winner: for example, when sending back 300 rows of data to the client, the Local EJB solution fails beyond 16 concurrent users whereas the streaming solution is still running at 128 concurrent users! The article includes complete source code and the entire results database for the stress test. I would be interested in hearing your feedback."

2 of 40 comments (clear)

  1. Interesting, but... by VGPowerlord · · Score: 2, Interesting

    I see the following problems with the article.

    1. Other than MySQL, it doesn't specify the software in use (it implies Apache Tomcat, but that is not explicitly stated), except...
    2. Microsoft Web Application Stress Tool. Pardon me if I refuse to put any faith into tools by Redmond. Particularly since, if Tomcat was in use, MWAST is being used instead of Apache's own ab tool.
    3. Why wasn't Java 1.5 tested? By definition, Java 1.4 means that you're testing vs. EJB 2.x instead of EJB 3.x. I don't know what changes have been made between the two, as I haven't learned EJB, but I'm assuming there have been some changes between the two, for better or for worse.
    4. What's causing the OutOfMemory errors? If a pair of servers are falling over at 16 simultaneous requests for a 301 row dataset, there's a major problem.

    Just some thoughts.

    --
    GLaDOS for President 2016! "Well here we are again. It's always such a pleasure." -- GLaDOS, 2011
  2. Hmmm... by Anonymous Coward · · Score: 2, Interesting

    A new DriverManager and a new db connection for every request? Welcome to 1998.

    Even though they return 1000 rows, 50 requests per minute is pretty poor. Voca processes 80 million bank payment per day using Spring.