WebSphere Application Server & Liberty

WebSphere Application Server & Liberty

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  • 1.  ODR or Web Server Plug in

    Posted 07/24/14 03:57 PM
    I need some details about using ODR / Web server Plug Intelligent Management?
    which one is best / advantage for requst routing to Application server? WHY IBM is SUGGESTING for Web Server now ( 8.5.5) when we are creating ODR?


  • 2.  ODR or Web Server Plug in

    Posted 09/04/14 11:20 AM
    Intelligent management can be used for application edition, health monitoring, and dynamic clusters.

    The ODR is an intellgent proxy server based on the WebSphere Application Server proxy server.  The ODR is not designed to run in the DMZ.  With ODR you would have a topology like the following


    Firewall -> LB -> web server -> firewall -> ODR -> WAS v8.5.x ND Cell

    The intelligent management WebSphere plugin can be used on the web server and you can skip the ODR.  However, the intelligement management plugin supports a subset of ODR functionality.

    The plug-in does not support the following ODR functions:
    1) ODR routing rules

    ‒No load balancing or failover for the same application in multiple cells

    ‒Note that different applications in different cells is currently supported

    2) CPU/memory overload protection

    3) Request prioritization

    ‒No queueing and re-ordering of requests based on service policies

    ‒Note that dynamic clusters ARE supported

    4) Highly available deployment manager

    5)Dynamic Cluster Lazy Start


  • 3.  ODR or Web Server Plug in

    Posted 09/04/14 10:45 PM
    Thank you Paul.


  • 4.  ODR or Web Server Plug in

    Posted 09/09/14 06:53 PM
    Paul has listed absolutely everything just a few small point i would like to add.

    With ODR in your topology you can create Dynamic Cluster of ODR, what it gives you is your routing infrastracture can also scale up and down with load. Since your ODR are basicaly JVM's it will enjoy the complete benifit of Autonomic Management Framework themselves.

    Hope it helps.


  • 5.  ODR or Web Server Plug in

    Posted 09/18/14 11:44 AM
    Why do we want ODR still? if we have web server.. web server will directly deal with Application server right? if we increase the layer, is it going to affect the scalability and performance?  IBM promoting to reduce the ODR layer if we use web server plugin ODR?  I am struggling to write the Routing Policy in web server plugin ODR than existing ODR.


  • 6.  ODR or Web Server Plug in

    Posted 09/18/14 04:41 PM
    Hi..


    I have a question.. when we use Web server Plug-in Intelligent Management, can we edit plug-in.xml for routing rules using RewriteRule or RewriteCond inside virtualHost tag? Please let me know


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