JVM in Oracle Apps 11i

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    Q: How to increase No. Of JVM's

Since you know place where number of JVM's are stored in Apps 11i in Context File , so you can change them as per your requirement. There are basically following Groups with their own JVM's.

  • OACoreGroup, where most of Java request goes
  • DiscoGroup, which serve your Discoverer related requests
  • FormsGroup, for Forms (If they are running in Servlet Mode, confirm it again)
  • XmlSvcsGroup, for XML Services
    In Context File

    disco_nprocs oa_var="s_disco_nprocs" osd="Solaris" 1 /disco_nprocs Sets 1 JVM Process for Discoverer.

    oacore_nprocs oa_var="s_oacore_nprocs" 1 /oacore_nprocs Sets 1 JVM for for OACoreGroup

    Similarly , s_forms_servlet_nprocs & s_xmlsvcs_nprocs for Forms & XML Services resp.

  •   These Groups are defined in configuration file for Jserv i.e. jserv.conf under $IAS_ORA/Apache/Jserv/conf ; like
    ApJServGroup OACoreGroup
    ApJServGroup DiscoGroup
    ApJServGroup FormsGroup
    ApJServGroup XmlSvcsGrp

     Q: Where to find Apps 11i JVM logs ?

    JVM log location is defined in java.sh ( found in $IAS_ORACLE_HOME/Apache/Apache/bin) Oracle Apps 11i JVM log file directory is defined by parameter JVMLOGDIR ( $IAS_ORACLE_HOME/Apache/Jserv/logs/jvm ) and log file are defined by STDOUTLOG & STDERRLOG. Example of JVM log files are
    OACoreGroup.0.stderr ,OACoreGroup.0.stdout, DiscoGroup.0.stdout, DiscoGroup.0.stderr, XmlSvcsGrp.0.stderr, XmlSvcsGrp.0.stdout
    where 0 denotes first JVM & 1 denotes second JVM. stderr records error encountered in JVM & stdout records other information like GC ..

      For information on Garbage Colector & How to tune 11i Apps JVM , How to monitor JVM's & useful link for information on 11i JVM click Next.
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