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Installation and Configuration Instructions

Kinetic Link 1.0.2, 2010-10-07 Installation and Configuration Instructions


INSTALLATION NOTES

As of this writing, the development team has been successful in running
Klink using Ars 60, Ars 63, and Ars 70 on both Tomcat and ServletExec.  We have
found no issues with Tomcat, however ServletExec has two known issues.  First,
this version of Klink will not run in a ServletExec instance which is being
used to deploy Mid-tier (due to a non-shareable system library).  Second, the
default configuration of IIS prevents BASIC http authentication from occuring.
This causes problems with passing Ars credentials to the Klink framework but
can easily be modified by the IIS manager.

INSTALL A SERVLET CONTAINER

This guide focuses on Apache Tomcat (as this is the recommended servlet
container), however the installation and configuration steps should be easily
applied to any other application capable of serving Java Servlets.

OBTAIN JAVA AND APACHE TOMCAT

Java can be downloaded directly form the sun web site at:
http://developers.sun.com/resources/downloads.html  Java 1.4 or higher can be
used, however we recommend the Java SE JDK 5.0 available at
http://java.sun.com/javase/downloads/index.jsp.

Tomcat can be downloaded directly from the apache web site at:
http://tomcat.apache.org/.  As of the writing of this document the most recent
version of Tomcat is 5.5.17 available here:
http://tomcat.apache.org/download-55.cgi#5.5.17.  For easiest configuration we
recommend the Core Windows executable.

INSTALL JAVA

Follow the instructions provided with your Java installation package.

INSTALL TOMCAT

Follow the instructures provided with your Tomcat installation package

INSTALL THE REQUIRED REMEDY API LIBRARIES

INSTALL REQUIRED JAVA LIBRARIES

The following files are required by Klink-Ars and can be found on a machine with
Remedy server installed.

Copy the following jar file into your Tomcat lib folder located at:
%Tomcat Root%\common\lib (where xx is the version of the Ars Api jar you will be
using to install Klink on top of).

FILE                LOCATIONS
arapixx.jar         %AR System Root%\Arserver\Api\lib

INSTALL REQUIRED SYSTEM LIBRARIES

Additionally the following files must be put in a directory listed in your
java.library.path environment variable.  If you do not have a java.library.path
environment variable, you can either create one and restart or temporarily
skip this step and use the Klink "about" framework call to determine what
directories are inherantly included in your java.library.path.

If there are no Ars servers running Mid-Tier which you have access to then the
following system libraries can be downloaded directly from the patches  remedy
supportweb site (http://supportweb.remedy.com) under the patches download.

FILE                LOCATIONS
arapixx.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
arjnixx.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
arrpcxx.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
arutlxx.dll         %AR System Root%\Mid-Tier\WEB-INF\lib

(If you are installing from Ars 6.0 these files are required.)
icudt32.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
icuin32.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
icuuc32.dll         %AR System Root%\Mid-Tier\WEB-INF\lib

(If you are installing from Ars 6.3 these files are required.)
icudt28l.dll        %AR System Root%\Mid-Tier\WEB-INF\lib
icuin28.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
icuuc28.dll         %AR System Root%\Mid-Tier\WEB-INF\lib

(If you are installing from Ars 6.0 these files are required.)
icudt20.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
icuin20.dll         %AR System Root%\Mid-Tier\WEB-INF\lib
icuuc20.dll         %AR System Root%\Mid-Tier\WEB-INF\lib

INSTALL KLINK

INSTALL KLINK TO TOMCAT

Copy the klink.war file into your Tomcat webapps directory (located at
%Tomcat Root%\webapps) and restart Tomcat.  This will unpack the klink
war file and should produce a new klink directory in webapps.

INSTALL KLINK TO SERVLETEXEC

Copy the klink.war file into the default server folder in the webapps directory
(located at %ServletExec Root%\webapps\default) and restart SERVLETEXEC.  This
will unpack  the klink war file and should produce a new klink directory in
webapps.

VERIFY KLINK IS RUNNING

Access http://<TomcatServer>:<ServerPort>/klink/about to verify that Klink is
running and that all of the required libraries are present.  Present libraries
will be listed as "Found" along with their versions and locations.  Missing
libraries will be listed as "Missing".  Please resolve these dependencies
before attempting any framework calls.

Additional information and documentation is available at
http://<TomcatServer>:<ServerPort>/klink/ (notice the trailing slash, in the
beta release we are having issues with correctly mapping pages from
http://<TomcatServer>:<ServerPort>/klink).

TROUBLESHOOTING

CREATED THE JAVA.LIBRARY.PATH ENV VARIABLE, BUT THE LIBRARIES ARE MISSING

The last thing displayed by the about framework call is a list of the paths
currently in the java.library.path property.  Ensure the the directory you
specified is listed and that all of the system libraries are present is that
directory.

THE ABOVE DLL FILES ARE IN THE PATH, BUT THERE ARE MISSING DEPENDENCIES


Depending on environment configuration and operating system, there may be more
system libraries required.  If the about page does not explicetly state which
system library is missing, Dependency Walker can be downloaded and used to
open the problamatic dll.  The main window pane will list the dll depencencies
currently unmet.

THE WAR FILE IS NOT AUTOMATICALLY UNPACKING

The development team has run into a few isolated cases in which the war file
distributed does not automatically deploy in Tomcat.  We were unable to
determine the root cause, however in both cases manually unpacking the files
sucessfully deployed the Klink framework.  To manually unpack the distribution
file, change the filename extension to .zip and use you favorite unzipper to
extract the files.  These files should be placed in a directory named "klink"
within the webapps directory.

SOMETHING ELSE IS GOING WRONG

Please let us know by sending an e-mail to klink@kineticdata.com.  By gathering
issues which our uses are facing during installation and configuration we will
be able to more accurately asses the deployment process and produce easier
methods for distribution.

CONFIGURE KLINK-ARS

Configuring the Logger

Klink uses log4j for all of its logging.  Logging by default is turned on,
however it can easily be disabled by modifying the servlet configuration for
the KlinkLogManager servlet (usually by editing the web.xml file).  Logging can
be configured in one of two ways.  The first is toto specify a log4j
configuration file.  The second is to use one of the two standard logging
profiles provided.

To turn on customized logging via a log4j configuration file add an
initialization variable with a param-name of "log4j_configuration_file" and a
param-value equal to the fully qualified path to the configuration file.  For
more informaiton on how to use log4j configuration files please see the log4j
website at http://logging.apache.org/log4j/docs/.

There are two standard profiles provided with the framework, DEBUG and STABLE.
To use one of these preconfigured logging configurations add (or modify if you
are using the default web.xml file) an initialization variable with a param-name
of "profile_name" and a param-value of either "DEBUG" or "STABLE".  The DEBUG
profile is extremely verbose (log statement, including level and location, down
to the code-level) and logs to a file named "klink.log" in the WEB-INF\logs
directory.  The STABLE profile logs to the same location but only includes less
verbose log statments that indicate unexpected problems.

If the "profile_name" parameter has a value other then "DEBUG" or "STABLE"
(including no value) it will default to the STABLE profile.  If both
"profile_name" and "log4j_configuration_file" are included then the
configuration file is applied after the profile.

Enable Live Reloading of Logger Configuration

In order to turn on the ability to do live reloading uncomment the /logconfig
framework call from the struts-config.xml file.  This call is disabled by
default due to security risks.

Log4j Logging Levels

Klink uses 5 different logging levels: DEBUG, INFO, WARN, ERROR, and FATAL.

DEBUG - These messages are used for code level debugging and are written to
target a user who is simultaneiously looking at the code.  In a typical
situation this would oinly be turned on when unexplainable errors are
occurring and the Klink Framework is suspect.  This level is extremely
verbose and due to the performance deterioration should only be turned on
and off as required.

INFO - This level logs the logic and flow of the framework and is the
suggested level to be used while application are being develped on top of
Klink.

WARN - This log level records all expected problems, errors, and exceptions
(common issues the framework is prepared to deal with).  This would include
messages such as those thrown when invalid credentials are passed to the
framework, there is a problem connected to the data server, invalid data is
passed or returned, or invalid framework parameters are detected.

ERROR - This log level records all recoverable, unexpected problems, errors,
and exceptions.  This level is the recommended level for stable Klink servers
and only includeds messages such as communication timeouts, Xml parsing
exceptions, or unexpected issues or errors with the data server.

FATAL - This log level records fatal exceptions and unrecoverable errors.  
This would include any errors that occur while trying to handle a thrown
exception, problems with returning an error response, and any other
circumstances that prevent Klink from processing a request.

DOCUMENT CHANGELOG

Kinetic Link 1.0.1, 2006-09-15
 -   (1) Added note on support of 7.0.
 - (3.1) Generalized instructions now that 7.0 is supported.
 - (3.2) Added .dll information for 7.0.

Kinetic Link 1.0.0, 2006-08-25
 -   (1) Clarified version compatibilities.
 - (3.2) Modified .dll locations to be correct.
 -   (6) Added section for troubleshooting.

Kinetic Link 1.0.0b2, 2006-08-11
 - (3.2) Clarified explaination of configuring path variables.
 - (4.2) Added instructions for installing Klink-ARS to ServletExec.
 - (5.2) Added instructions for verifying that the ARS dlls are present.
 - (7.1) Updated instructions to reflect version changes.

Kinetic Link 1.0.0b, 2006-07-13
 - initial release