Friday, June 07, 2013

Tech Review: Oracle Fusion: Friday, June 7, 2013

I really need a better understand of Fusion and how it works.  This reminds me of the old days when I had to search through tons of Unix documentation to figure something out by drawing bits and pieces for many different documents.



Fusion Middleware 11g

Oracle OpenWorld

ORACLE FUSION MIDDLEWARE
  • low on meat and high on buzzword fluff.
Fusion middleware launch

Oracle Fusion Middleware 11g Launch Event announced
  • Look like this came out in 2009 so we are dealing with technology that is already 4 years old.
  • Looks like Oracle is moving towards end-to-end solutions
  • We are building our own using old technology


ORACLE FUSION MIDDLEWARE RELEASE 1 (11.1.1.6)
  • this is the main location for documentation.

GET STARTED WITH ORACLE FUSION MIDDLEWARE


Overview of Oracle Fusion Middleware
  • a collection of standards-based software products
  • software components or enterprise applications
  • Middleware - software layer that lies between OS and application on each side of a distributed computer network
  • Web Tier
    • Horacle HTTP Server
  • Middle Tier
    • Oracle WebLogic Server
  • Data Tier
    • database
Understanding Key Concepts
  • Oracle Fusion Middleware Environment
    • Oracle WebLogic Server domain
      • one Administration Server
        • Oracle WebLogic Server Administration Console
        • Fusion Middleware Control
      • one or more Managed Servers
        • Oracle WebCenter
        • Oracle SOA Suite

Description of Figure 2-1 follows

What Is a Middleware Home?
  • a container for 
    • one (?) Oracle WebLogic Server home
    • 0 or 1 Oracle Common home
    • 0 or more Oracle homes
  • Do we have an 'Instance Home'
  • We have a 'wlserver_10.3' home
    • Is the name of the server there?
    • Could the name be the domain?
    • The wlserver_10.3\common\bin folders has some scripts and config info
      • commEnv.com
        • contains all the 'home' definitions'
        • don't see a server name
  • no oracle_soa1
  • oracle_common
  • What is Oracle_WT1 (Web Tier 1)
  • user_projects
    • applications
      • <domain name>
        • <name>_domain
    • domains
      • <domain name>
        • <name>_domain
        • autodeploy
          • readme.txt
            • quick way to deploy applicatons to development server
            • when WebLogic Server is running in development mode
            • application in this directory are automatically deployed
            • WebLogic Server domains start up in development mode by default
            • all WebLogic Server instances in a domain
            • startWebLogic.cmd
            • can setup domain mode in Administration Console
        • bin
          • secureWebLogic.cmd
            • Sets DOMAIN_HOME
              • <drive>:\Oracle|Middleware\user_projects\domains\<domain name>
<drive>:\Oracle\Middleware\user_projects\domains\<domain name>\sysman\config\ohwconfig.cmd
  • oracle_apache
  • oracle_webcenter
  • weblogic_j2eeserver
<drive>:\Oracle\Middleware\user_projects\domains\<domain name>
  • shutdown.py
    • connect( url='t3://<machine>:7001', adminServerName='AdminServer')
    • shutdown('AdminServer','Server', ignoreSessions='true'
  • startWebLogic.cmd
    • <domain home>\bin\startWebLogic.cmd
<drive>:\Oracle\Middleware\user_projects\domains\<domain name>\bin\secureWebLogic
  • SERVER_NAME - Name of the weblogic server
  • set SERVER_NAME=AdminServer
E:\Oracle\Middleware\wlserver_10.3\common\bin\commEnv.cmd




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Oracle WebLogic 11g Creating an Windows Service: Thursday, June 6, 2013



First off, let me simply state that the fact that I have to create this script is an indication of a fundamental flow in Oracle's approach.  For an example of a piece of software that does it right look at LimeSurvey.  Perhaps Oracle has done butter in 12c, but I don't think so.



Setting Up a WebLogic Server Instance as a Windows Service
  • Script
    • sets values for server-specific variables
    • calls a WebLogic master script
Am I setting up a Manage Server to run from WebLogic 

    • add a Java class and modify master script so that the MS Management console will invode the class
Will do this after I get the script up and running.

Creating a Server-Specific Script
  • sets values for variables that identify the name of the server instance and other server-specific information
  • call the master script
    • WL_HOME\server\bin\installScv.cmd
    • master script invokes beasvc utility
      • to learn more about utility - WL_HOME\server\bin\beasvc -help
  • Example script
    • {this is not a complete example}
echo off  SETLOCAL  set DOMAIN_NAME=myWLSdomain  set USERDOMAIN_HOME=d:\Oracle\Middleware\user_projects\domains\myWLSdomain  set SERVER_NAME=myWLSserver  set PRODUCTION_MODE=true  set  JAVA_OPTIONS=-Dweblogic.Stdout="d:\Oracle\Middleware\user_projects\domains\myWLSdomain\  stdout.txt" -Dweblogic.Stderr="d:\Oracle\Middleware\user_projects\domains\myWLSdomain\  stderr.txt"  set ADMIN_URL=http://adminserver:7501  set MEM_ARGS=-Xms40m -Xmx250m  call "d:\Oracle\Middleware\wlserver_10.3\server\bin\installSvc.cmd"  ENDLOCAL

These values are being set in the following files:
  • WL_HOME\user_projects\domains\<domain>\bin\startManagedWebLogic.cmd
    • DOMAIN_NAME=myWLSdomain
  • E:\Oracle\Middleware\user_projects\domains\<domain>\init-info\
    • USERDOMAIN_HOME=
The 'root' directory for the Administration server is the same as USERDOMAIN_HOME and contain the domain's configuration file.
  • What is the domain's configuration file name?
And is called 'config.xml'

OK, with this knowledge do I no know where the text file is to be stored?

I think part of the documentation is not correct.  The 'Administration Server's root directory doesn't contain the configuration file, it contains the configuration directory.

I think I want the production mode set to false for now so that it runs in development mode.

The text files needs a '.cmd' extension

The above script is only partial.

Example Java Class that Shuts Down a Server Instance
  • This basically logs into the server and tells it to shutdown.
  • Class is ServerStopper
  • Shutdown all 
They are not giving me enough information.
  • Where does this file go?
  • How is it called?
I have to go to another page to try to piece this together.

OK, let's read though the instructions again.

Setting Up a WebLogic Server Instance as a Windows Service
  • Microsoft Management console (MMC)
    • Where you start, stop and configure Windows services.
  • For every server setup as a Windows service, WebLogic Server creates a key in the Windows Registry
    • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
    • information in key used to invoke the 'weblogic.Server main class
  • MMC cannot be configured to use Node Manager to start Managed Servers
  • Node Manager's monitoring and automatic restart features cannot be used if Windows service is used to start the WebLogic Server
Setting Up a Windows Service: Main Steps
  • Create a script that sets values of server-specific variables and than calls a WebLogic Server master script
  • Are we installing Managed Server as a Windows service?
There are a lot of servers being talk about and one server can be called by more than one name.
  • Servers
    • WebLogic Server
    • Managed Server
    • Administration Server
      • Some of the naming seems to indicated this is the same as WebLogic Server
  • Do we have a Managed Server?  How do I tell if we are running a Managed Server?
    • Is is started in the WebLogic Server master script?
  • Create Java class to shutdown the service.
What is the service called?  How do i find it in the MMC?
  • I need to redirect the standard out and standard error so it can be read.
  • The Java class for graceful shutdown need to be added to the WebLogic Server master script so that the WebLogic server instance can invoke it.
  • Run the server-specific script
    • I believe this is the script that sets the server-specific variables and calls the WebLogic Server master script.
  • server-specific script
    • AdminServerWebLogicMMCService.cmd
  • located in the Administration Server's root directory
    • Where is this directory located?
      • The absolute pathname of the Administration Server's root directory is contain in the user domain home script variable (USERDOMAIN_HOME).
      • d:\Oracle\Middleware\user_projects\domains\myWLSdomain  
      • <Drive>:\Oracle\Middleware\user_projects\domains\<WLS domain>
      • WebLogic Server (WLS)
  • The following commands are required to start the script:
    • SETLOCAL  
      • What does this command do?
      • http://ss64.com/nt/setlocal.html
        • controls the visibility of environment variables
        • causes script to inherit all current variables from the master environment/session
        • ENDLOCAL  restore the variable to the state when SETLOCAL was called.
    • set DOMAIN_NAME=domain-name  
      • The name of the WebLogic Server domain
      • domain-name is <my domain>
    • set USERDOMAIN_HOME=absolute-pathname  
      • The absolute pathame of the Administration Server's root directory.
      • This is a bit confusing to me because the name seems to the path  to the WLS domain name; however, the name of the server is AdminServer.  Is the administration server the WebLogic server?  Can there be more that one WebLogic server running at a time?
    • set SERVER_NAME=server-name  
      • This name in both the incomplete example script and in my install is 'AdminServer'.
        • Where did is set this?
        • Can there be more than one of these types of servers?
  • The following command are optional.  However, I don't see how that can be 'optional' in normal circumstances where you have a server you that you must log into which seems to be the default install.

    • set WLS_USER=username

    • set WLS_PW=password  
      •   This user name and password are set in the install and by default the user name is 'weblogic'.  I don't think there is a default password.
      • These login credentials are encrypted and stored in the Windows registry.  However, they are is simple text in the server specific script.
    • set PRODUCTION_MODE=[true]  
      • Should leave this off while getting the script running so I have more debug info.
    • set JAVA_OPTIONS=java-options  
      • I believe that I use the one from the example as long as I update the path.
    • set JAVA_VM=-JVM-mode  
      • I believe that I can omit this and let Java use its default
    • set MEM_ARGS=[-XmsNumberm] [-XmxNumberm]  
      • Use the values from the example
    • I think I can leave out the connection retries, ip address and port number
  • The following command are required to end the script
    • call "WL_HOME\server\bin\installSvc.cmd"  
      • I need to put the complete path name
    • ENDLOCAL  
      • causes the environment variables to be restore to there state when SETLOCAL was called.
Ok, now that I have the script written, how do I test it?

Configuring a Connection to the Administration Server
  • Managed Server as a window service
  • location of the domain's Administration Server
  • Managed Server contacts the Administration Server to get configuration data.
  • Administration Server is not a service.
    • I thought that this is what I was the service I am creating.

Configuring Managed Server Connections to the Administration Server
  • How do I start the Administration Server in a shell or command line?
  • Starting and Stopping Servers
  • There are two conditions that I have to do this
    • starting a Managed Server
    • invoking the java weblogic.Server  command directly
  • I am not doing either of those, so I should be off the hook
It seems like the Admin Server and the WebLogic Server are two different things.

Verifying the Setup
  • veirfy that I have successfully set up a WebLogic server as a Windows service
    • Open a command window and set the path variable to server bin
      • set PATH=WL_HOME\server\bin;%PATH%  
    • Navigate to the directory immediately above you domain directory.
      • MW_HOME\user_domains\mydomain  to MW_HOME\user_domains  
    • Execute the beasvc command
      • beasvc -debug "yourServiceName"   
How do I determine the service name?

Looking for the beasvc command in script.

Didn't find.

Searching the web brings me back to the above pages.

I am going to assume that it is the name of the server in the SERVER_NAME variable in the server specific script.

How does the above command verify anything?



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Tuesday, April 02, 2013

I got the following error trying to install the Oracle WebLogic Server:


The JDK wasn't found in directory "c:\Program Files\Java\jdk1.7.0_17".
Please edit the setWLSEnv.cmd script so that the JAVA_HOME
variable points to the location of your JDK.
Your environment has not been set.


The fix was simple, but took me a little bit to figure out.  The problem is the quotes.  When setWLSEnv.cmd call the command to verify that the java.exe is present, there are quotes in quotes and the command fails.  To fix change "Program Files" to the short name.  This can be found by running the 'dir /x' command at c:\ level.  In my case the result look like this:

>set JAVA_HOME=c:\PROGRA~1\Java\jdk1.7.0_17

Actually the real problem is that MS put a space in the directory name, but could luck getting them to fix their mistake.

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Monday, November 14, 2011

Tech Review: Thursday, November 10, 2011



  • an object-relational mapping (ORM) library for Java
  • provides a object-oriented domain model mapping to a traditional relational database
  • free GNU software
  • http://en.wikipedia.org/wiki/NHibernate
    • NHibernate for MS .NET
  • example program in Java


  • Red Hat Linux
  • Discontinued in 2004
  • Read Hat Enterprise Linux (RHEL)
  • Advance Platform (AS)
  • Red Hat Enterprise Linux 3 (Taroon) Update 9, 2007
    • outside of regular life cycle
    • 2013-10-31 (End of Extended Life Cycle
  • Red Hat Enterprise Linux 6 
    • 2010-11-10
    • 2017-11-30 (End of Regular Life Cycle)



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Thursday, November 03, 2011

Tech Review: Wednesday, November 2, 2011

  • Two types of classes
    • Top-level class
      • cannot be declared static
        • static class means top level class?
    • Inner classes
      • 4 types
        • Anonymous
          • special syntax with no name
        • local
          • created within a block
        • Member class
          • created within a class
        • Nested top-level
          • member class
            • static modifier
PostgreSQL

There is no "USE" close like in SQL.  From the pgAdmin Query Tool, you need to select the connection for the data base in the top middle of the Query Tool.

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Wednesday, March 16, 2011

Grid Security Infrastructure (GSI)




public key cryptography
asymetric cryptography


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Thursday, November 11, 2010

DVN - DataVerse Network

From the iRODS workshop slides.


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Deep Archive - ?

Seems to be related to compression or with age.


It could also be related to not being able to be cataloged with web spiders.

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SHAMON - Sustaining Heritage Access Through Multivalent Archiving

http://ercim-news.ercim.eu/en80/special/shaman

This took a little work to find.  A search of SHAMAN get lost in all the WOW (World of Warcraft) results.


Slide show.


ACM article.

A digital archive preservation environment.


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Kepler - an API for analyzing and modeling scientific data

https://kepler-project.org/users/faq

Supported by iRODS.

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Tuesday, June 12, 2007

Data Base Design


This looks like a good general article on database design: http://www.databasejournal.com/features/mssql/article.php/

There is also an article in using stored procedures with error reporting: http://rwgarrison.com/rg/Writing/ErrorCheckingPart1.htm

This used in debugging.

This can be used in testing: http://www.tsqltest.org/

It is a simple, lightweight testing framework for Microsoft SQL Server. It is a free application.

This is a set of SQL procedure standards: http://rwgarrison.com/rg/DevStds/

All of the above articles where done by Rob Garrison.
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