WebSphere Application Server & Liberty

WebSphere Application Server & Liberty

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  • 1.  My interview questions

    Posted Tue June 11, 2013 03:12 PM

    Hi guys ,


    How to take the back up of existing application in Web Sphere application through command line


    thank you.


  • 2.  My interview questions

    Posted Tue June 11, 2013 03:24 PM
    The Deployed ears are available under

    config/cells/Cell-name/Applications/abc.ear

    you can navigate to that location  and execute

    Linux/AIX-->Sh> cp abc.ear abc.ear.9Jun2013

    Hope this will helpful.

    Thanks
    Venkata




  • 3.  My interview questions

    Posted Wed June 12, 2013 04:46 AM
    1)how to increase a heap size through command line and explain the parameters ?

    2) Explain patch, hotfix and service pack


    3) Command to Pull out the records which are same in two records



    4)How to  troubleshoot 100% CPU utilization in linux


    thank you. 



     



  • 4.  My interview questions

    Posted Wed June 12, 2013 04:47 AM
    thank you Venkat for the post


  • 5.  My interview questions

    Posted Wed June 12, 2013 01:30 PM

    1) How to increase the heap size from wsadmin

    To set Minimum Heap
     AdminTask.setJVMInitialHeapSize( ‘[ -nodeName ' + n + ' -serverName ' + s + ' -initialHeapSize ' + str( 384 ) + ' ]‘ )

    To Set Max heap


    AdminTask.setJVMMaxHeapSize( ‘[ -nodeName ' + n + ' -serverName ' + s + ' -maximumHeapSize ' + str( 944 ) + ' ]‘ )

    Thanks
    Venkata


  • 6.  My interview questions

    Posted Sat June 15, 2013 12:57 AM
    4)How to  troubleshoot 100% CPU utilization in linux 

    100% cpu utilization / cpu starvation /high cpu utilizaion

    kasi,

    First we will see in the two presceptives, 
    Platform and the Middleware.

    Platform
    some process spawning lots of threads in the high load condition and there is 
    no throtlling at all. this can cause high cpu utilization because of unexpected load on the application.

    Middleware
    1.memory utilization can also indirectely affect the cpu utilization.
    2.The application is suffering from serious design flaws and coding defects.
    3.unnecessary synchronized code, long interating loops,in the code and 
    memory leaks

    these things should be checked one by one,atleast to point what could be the reason for the high cpu.


    Folks please correct/add what ever is necessary

     RK

     


  • 7.  My interview questions

    Posted Sat June 15, 2013 02:57 AM
    Thank you, RK