Getting started with Agent Controller - OS/390

This guide contains the following information:

• Prerequisites
• Configuring and starting Agent Controller
• Querying Agent Controller version information
• Server logging
• Invoking the Java Profiler
• Uninstalling the Agent Controller

Prerequisites

• RAServer requires the directories of the JRE that contain executable libraries such as libjvm.so to be added to the LIBPATH environment variable. For example, if you are using the IBM JRE 1.4.1, the LIBPATH variable would be set as follows:

  export LIBPATH=/usr/lpp/java/IBM/J1.4/bin/classic:/usr/lpp/java/IBM/J1.4/bin:$LIBPATH

  Note: The path that contains the JVM library libjvm should match the one specified inside Agent Controller's configuration file, config/serviceconfig.xml, under the AgentControllerConfiguration element's jvm attribute. For example, if the configuration file is pointing to the server JVM, then the library path should also points to the location of the server JVM, not the client JVM. Agent Controller will not function properly if the library path and the configuration do not match.

• RAServer requires the following XML4C parser on OS/390: IBM XML C++ Parser 1.4 for z/OS. It can be downloaded from the following web site: http://www-1.ibm.com/servers/eserver/zseries/software/xml/download/cparser_download.html

  After installing the XML4C parser on the OS/390 system, add the XML4C parser lib directory to the LIBPATH environment variable. For example, the LIBPATH variable would be set as follows:

  export LIBPATH=/usr/lpp/xml4c-4_0/lib:$LIBPATH

• Install the TPTP 3.3.0 Runtime.

Configuring and starting Agent Controller

<unzip directory> = The absolute directory path where Agent Controller has been unzipped. For example, /opt/Hyades.
<RAServer PID> = The process identifier for the server process.

1. Add the <unzip directory>/lib directory to the system's LIBPATH environment variable.
2. Add the <unzip directory>/bin directory to the system's PATH environment variable.
3. Set the RASERVER_HOME environment variable to point to <unzip directory>. The server will use this environment variable to locate the configuration file.
4. Ensure that the files in the <unzip directory>/bin and <unzip directory>/lib directory are executable.
5. Generate the configuration file that provides the rules for which applications that can be executed with the server. This can be accomplished by running the <unzip directory>/bin/SetConfig.sh script. Run this script from a command shell in the <unzip directory>/bin directory. This step will require that a Java Virtual Machine (JVM) be present in the system's PATH. Follow the prompts and the output will be the <unzip directory>/config/serviceconfig.xml file. This is a sample of the configuration file that will be used by the server when it is started. You may edit this file manually using the rules as outlined in the document Agent Controller configuration files. To load any changes, restart the server.
6. Ensure that the <unzip directory>/bin/RAServer file is executable.
7. Start the server by running <unzip directory>/bin/RAStart.sh.
8. Stop the server by running <unzip directory>/bin/RAStop.sh.

Querying Agent Controller version information

To display the version of Agent Controller, simply type:
RAServer -v
or
RAServer -version

The Agent Controller will display its version and terminate.

Server Logging

Invoking the Java Profiler

The Java Profiler is a library that attaches to a JVM to capture and record the Java application's behavior. The output from the profiling agent is in the form of XML fragments.

Documentation on the composition of these XML fragments is located at: http://www.eclipse.org/tptp/platform/documents/resources/profilingspec/XML4Profiling.htm

Invocation of the Java Profiler from the Hyades Workbench

The Java Profiler can be launched from the Hyades workbench. Open the Profiling Perspective and you can launch applications using the 'Profile' menu contribution or the toolbar button. Applications can be run either using code within the current Hyades workbench's workspace or binaries that are on the file system.

Invocation of the Java Profiler from the Command Line

The Java Profiler is invoked using the -Xrun JVM option as follows:

    -XrunpiAgent[:agent_parm[,agent_parm]*

• server=[standalone | enabled | controlled]

  standalone

  The Java Profiler is manually attached to a JVM instance and generates a stand-alone trace to a specified file based on the options and filters given on the command line. When this option is selected, the Java Profiler produces the enclosing traceRoot element to form a complete and valid XML document.

  enabled

  The Java Profiler is loaded, allows the application to run normally, but produces no trace until a Hyades workbench attaches to the agent to give it instructions. When this option is selected, the Java Profiler only produces XML fragments instead of a complete XML document.

  controlled

  The Java Profiler is loaded, blocks the application from running until a client gives it instructions to continue. When this option is selected, the Java Profiler only produces XML fragments instead of a complete XML document.

• filters=filename
  NOTE: This parameter is only used when server=standalone is specified.
  Specifies the name of the file that contains the initial class filter definitions to be used during the trace. The default is filters.txt in the current directory. The format of the file is as follows:

          classpattern methodpattern mode , where:
  

  classpattern

  is a string with no imbedded blanks. The string may contain a single "*" either at the beginning of the string or at the end of the string. The "*" will match zero or more characters, thus making the pattern a generic prefix or suffix pattern. A single "*" can also be specified to represent all strings.

  methodpattern

  is a string with no imbedded blanks. The string may contain a single "*" either at the beginning of the string or at the end of the string. The "*" will match zero or more characters, thus making the pattern a generic prefix or suffix pattern. A single "*" can also be specified to represent all strings.

  mode

  is one of INCLUDE or EXCLUDE. Filter patterns are processed in the order that they are specified until the first pattern match succeeds. If the class name does not match any of the specified filter patterns, the default is to INCLUDE the class.

• file=filename
  NOTE: This parameter is only used when server=standalone is specified.
  Specifies the name of a file where the trace will be written. The default is trace.xml in the current directory.
• help
  Displays a list of available agent options to standard out.

Uninstalling the Agent Controller

To uninstall the agent controller:

1. Stop the server by running <unzip directory>/bin/RAStop.sh.
2. Remove the agent controller directory.