Welcome!

Websphere Authors: Elizabeth White, Yeshim Deniz, Pat Romanski, XebiaLabs Blog, Liz McMillan

Related Topics: Websphere

Websphere: Article

Profiles for WebSphere Application Server 6.0

Instance separation provides facility of information

The new IBM WebSphere Application Server (WAS) v6.0 software introduces the concept of Server Profiles. Profiles can be thought of as a specific server runtime environment operating within a separate instance of the JVM.

Each runtime environment has its own configuration files, logs, properties, and other attributes. Profiles can make each Java 2 Enterprise Edition (J2EE) application server runtime unique and separate from the server binaries and from other profiles. The separation of static binaries from configuration files provides a number of benefits for system administrators.

The WAS v6.0 profiles are similar to the wsinstance tool provided with WAS v5.x, but with some important differences. The wsinstance tool creates configuration files for separate JVM instances, but shares other information across instances of WAS v5.x. In contrast, profiles draw a sharp degree of separation, so much so that each profile is separately administered with its own configuration, logs, J2EE applications, and other attributes. The separation that profiles provide allows for a unique instance of WebSphere that has not been available in previous releases of WAS.

Easier Than Multiple Installs
More than one instance of the same IBM WAS product may be required on the same machine. This is often the case if the administrator desires to keep a degree of separation between applications and environments. This may be the case if you have a development group sharing the same WebSphere install instance. When using the WAS profiles, each profile runs as its own 1.4.2 JVM instance, thus providing a physical as well as a logical separation between instances of the product. This offers an advantage over multiple installs because it saves space. In addition, service updating is simpler since an administrator only needs to maintain a single set of product binaries. Profiles can also be created and deleted more easily than with whole product installs. With the separation of product binaries and profiles, it's possible for a system administrator to allow groups to have access to the profile information that defines their application server, while at the same time locking down the WAS runtime binaries.

Easier Application Updates
Another useful aspect of profiles is the staging of application updates. In this scenario, you have updated an application and wish to test it on the targeted WebSphere Application Server. The problem is that an older version of your application is already running and being used. You could uninstall the application and reinstall the new update, yet that would require you to take the application offline and then reinstall if your test fails. A solution would be to create a new profile and test it there. The test profile will be operating in its own instance of WAS and will be logically separated, thus giving you a level of security and separation should your tests fail. Of course, it only protects you while running in the context of WAS, and not if the two applications are sharing the same database or any other shared resource the two applications may access.

Figure 1 shows a typical WebSphere Application Server Network Deployment topology running with two profiles. The first is a default profile for a WAS Base instance; this profile contains information for one server. The second is a WAS Deployment Manager instance that contains two servers in the profile. Both are logically grouped within a node. A node normally corresponds to a physical computer system with a specific IP address. Associated with the application server is the embedded HTTP server, which directs requests to the application server. The embedded HTTP can be associated with a production HTTP server such as IBM's HTTP Server product based on Apache, or another third-party product.

The profile defines the characteristics of the WAS instance that is running in the context of the JVM. The profile contains all of the information that makes the server instance unique, such as port mappings, available services, data sources, JDBC providers, etc. The profile information is contained in the <WAS_ROOT>/profiles directory. Table 1 illustrates the contents of the profile directory and their functions within the WAS. A default profile is created for you when you initially install WAS v6.0.

Creating New Profiles
For one reason or another, you have decided to create a new WAS Profile. Perhaps you have two development groups that share the same install instance but have different configuration environments. Or perhaps you wish to have two versions of the same application running, but with different environments. WAS v6 supports two ways of creating a new profile: the profile creation wizard and command line.

Profile Creation Wizard
The easiest way to create a new profile is to run the Profile creation wizard tool located in the <WAS_ROOT>/bin/ProfileCreator directory. Figure 2 shows the profile creation tool that will step you through the process of creating a profile. You will need to decide the name of the profile, the directory of where the profile information will be stored, the node and hostname of the server, and any changes to the default ports. The wizard will attempt to avoid WAS port conflicts by looking at the existing configured ports. It does not attempt to look at services outside of WebSphere that may already be running on those ports during the profile creation.

Creating Profiles with the Command Line
Another way to create a profile is via the wasprofile command line. The wasprofile creation tool is located in the <WAS_ROOT>/bin directory of the application server. For Linux, the file is wasprofile.sh and for windows it's wasprofile.bat. The wasprofile command is the primary tool used to manage profiles and provides the greatest amount of flexibility. Listing 1 creates a profile called MyNewProfile.

The -profilePath specifies the location in which the profile directory should reside. Normally, profiles are placed in the profile repository directory located in <WAS_ROOT>/profiles, but this can be overridden.

The parameter -templatePath specifies the location of profile templates that will be used in creating the new profile. The profile templates directory contains a number of Ant scripts and default configurations that act as a starting point for the tool in creating a new profile. Which template is used is important when considering what instance of WebSphere you wish to create. As an example, the WAS ND version of the product supports running in three modes: standalone base application server, a managed base application server, or as a deployment manager. The specific example uses the default profile to create a standard application server.

The profile tool only supports executing one instance at a time. If you try to start another instance of wasprofile while the first one is still completing, you will receive an error message.

The -nodeName and -cellName specify the name of the node and the name of the WAS cell. A node is a grouping of servers, while a cell is a logical grouping of nodes.

The -hostName is the name of the machine on which that the profile resides.

When the profile is created, the directory structure described in Table 1 will be created in the directory location that you specified. The default profile repository is <WAS_ROOT>/profiles/. Once the profile is created, you will need to start the application server. If you used the profile creation wizard, you will have the option of starting the FirstSteps application when the profile creation is complete. FirstSteps is an easy tool to start and test your profile. You can later rerun the FirstSteps tool by going into the firststeps directory of where your profile was created.

Another way of starting your application server using your new profile is via the command line. WebSphere provides two ways of starting the application server; it is with the same command but from two different locations. The first location is the <WAS_ROOT>/bin directory. Contained here is a helper script called startServer.cmd on Windows, and startServer.sh on Linux. When starting the application server from here, you will need to specify the profile to be started. For example, if your profile was called MyNewProfile, then the command would be:

startServer.sh server1 -profile MyNewProfile







server1 is the default server name given to Application Server when the profile was created. There are a number of other commands that are contained in this directory. If you have a specific profile that you want to change the state of, then you will need to specify the -profile command. The system administrator can use the commands in the <WAS_ROOT>/bin directory to control all of the profile instances. The commands in the <WAS_ROOT>/bin directory are intended for system administrators to execute.

The other location is within the bin directory of the profile you created. If you created the profile MyNewProfile, then the startServer.sh command would be located in <WAS_ROOT>/profiles/MyNewProfile/bin. The difference here is that all of the executables stored in this directory run in the context of the newly created profile. The -profile MyNewProfile is not required to start the application server.

The reason for the difference is that the profiles can be owned by a different group aside from the system administrator who is controlling the WAS. As the owner of MyNewProfile, I may have the need to start and stop the servers in my profile, but at the same time not have the authority to start and stop servers for another profile.

Managing Profiles
The wasprofile command also supports managing profiles as well as creating them. The description below contains some of the commands that the wasprofile provides.

Deleting a Profile
When you delete a profile, it removes the named profile and its contents from the directory. Any customization or additional scripts that you may have added to the profile directory may also be deleted as well. You should use this tool rather than deleting the profile directory manually since this will prevent corruption of the profile information that WAS maintains.

./wasprofile.sh -delete -profileName profile_name | - profilePath profile_path [-debug]


Listing Additional Profiles
To list the profiles that WAS knows about, use the following command:

./wasprofile.sh -listProfiles [-debug]


To check the integrity of a profile registry:

./wasprofile.sh -validateRegistry [-debug]


Get the path of an existing profile from the name:

./wasprofile.sh -getPath -profileName profile_name [-debug]


Conclusion
Profiles in WAS v6 offer flexibility to meet growing changes in environments. With profiles it is possible to create new application servers that have a degree of separation between other J2EE applications that might be running on the server. When you create a profile, you are creating a new instance of the WebSphere Application Server that shares the same runtime binaries, yet can have a unique configuration that is separate from another WebSphere instance. The separation has advantages for setting up and maintaining your WebSphere installation.

Resources

  • Williamson, L., Chan, L., Cundiff, R., Lauzon, S., and Mitchell, C. (2005). IBM WebSphere System Administration. IBM Press.
  • WebSphere Application Server Information Center: www-306.ibm.com/software/webservers/appserv/was/library/
  • More Stories By Kevin Haverlock

    Kevin Haverlock is an advisory software engineer for IBM's WebSphere Application Server product. He joined IBM in 1995 at Research Triangle Park, NC, where he worked as a developer for the Tivoli division. In 2000 he transferred to the WebSphere Application Server organization and is currently an architect and developer for the WebSphere Application Server Express product.

    Comments (1) View Comments

    Share your thoughts on this story.

    Add your comment
    You must be signed in to add a comment. Sign-in | Register

    In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


    Most Recent Comments
    Adam Clarricoates 02/24/05 03:29:50 AM EST

    Is there any (supported) way to move a profile from one WAS install to another? I can't see a way from quickly reading through the documentation.

    Why is this important?...

    Let's say I have 4 profiles with 4 apps pointing to WAS_HOME1, which is running v6.0.0.1. One of the apps needs a WAS fix, but the others don't want to move to the patched version (would involve lots more testing).

    At the moment, it looks like I need to make a new install, patch it, create a profile, install the app, reconfigure all the other infra to point to it (disrupting many other systems) and retest all the new configurations.

    It would be great if I could just make a new WAS install, patch it and repoint application 1's profile to it - drastically reducing the number and scope of changes and so reducing the risk of a mistake somewhere and the amount of testing required.

    Adam

    @ThingsExpo Stories
    SYS-CON Events announced today that ActiveState, the leading independent Cloud Foundry and Docker-based PaaS provider, has been named “Silver Sponsor” of SYS-CON's DevOps Summit New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. ActiveState believes that enterprises gain a competitive advantage when they are able to quickly create, deploy and efficiently manage software solutions that immediately create business value, but they face many challenges that prevent them from doing so. The Company is uniquely positioned to help address these challenges thro...
    “The age of the Internet of Things is upon us,” stated Thomas Svensson, senior vice-president and general manager EMEA, ThingWorx, “and working with forward-thinking companies, such as Elisa, enables us to deploy our leading technology so that customers can profit from complete, end-to-end solutions.” ThingWorx, a PTC® (Nasdaq: PTC) business and Internet of Things (IoT) platform provider, announced on Monday that Elisa, Finnish provider of mobile and fixed broadband subscriptions, will deploy ThingWorx® platform technology to enable a new Elisa IoT service in Finland and Estonia.
    Advanced Persistent Threats (APTs) are increasing at an unprecedented rate. The threat landscape of today is drastically different than just a few years ago. Attacks are much more organized and sophisticated. They are harder to detect and even harder to anticipate. In the foreseeable future it's going to get a whole lot harder. Everything you know today will change. Keeping up with this changing landscape is already a daunting task. Your organization needs to use the latest tools, methods and expertise to guard against those threats. But will that be enough? In the foreseeable future attacks w...
    As enterprises move to all-IP networks and cloud-based applications, communications service providers (CSPs) – facing increased competition from over-the-top providers delivering content via the Internet and independently of CSPs – must be able to offer seamless cloud-based communication and collaboration solutions that can scale for small, midsize, and large enterprises, as well as public sector organizations, in order to keep and grow market share. The latest version of Oracle Communications Unified Communications Suite gives CSPs the capability to do just that. In addition, its integration ...
    From telemedicine to smart cars, digital homes and industrial monitoring, the explosive growth of IoT has created exciting new business opportunities for real time calls and messaging. In his session at @ThingsExpo, Ivelin Ivanov, CEO and Co-Founder of Telestax, shared some of the new revenue sources that IoT created for Restcomm – the open source telephony platform from Telestax. Ivelin Ivanov is a technology entrepreneur who founded Mobicents, an Open Source VoIP Platform, to help create, deploy, and manage applications integrating voice, video and data. He is the co-founder of TeleStax, a...
    Today’s enterprise is being driven by disruptive competitive and human capital requirements to provide enterprise application access through not only desktops, but also mobile devices. To retrofit existing programs across all these devices using traditional programming methods is very costly and time consuming – often prohibitively so. In his session at @ThingsExpo, Jesse Shiah, CEO, President, and Co-Founder of AgilePoint Inc., discussed how you can create applications that run on all mobile devices as well as laptops and desktops using a visual drag-and-drop application – and eForms-buildi...
    We certainly live in interesting technological times. And no more interesting than the current competing IoT standards for connectivity. Various standards bodies, approaches, and ecosystems are vying for mindshare and positioning for a competitive edge. It is clear that when the dust settles, we will have new protocols, evolved protocols, that will change the way we interact with devices and infrastructure. We will also have evolved web protocols, like HTTP/2, that will be changing the very core of our infrastructures. At the same time, we have old approaches made new again like micro-services...
    Disruptive macro trends in technology are impacting and dramatically changing the "art of the possible" relative to supply chain management practices through the innovative use of IoT, cloud, machine learning and Big Data to enable connected ecosystems of engagement. Enterprise informatics can now move beyond point solutions that merely monitor the past and implement integrated enterprise fabrics that enable end-to-end supply chain visibility to improve customer service delivery and optimize supplier management. Learn about enterprise architecture strategies for designing connected systems tha...
    SYS-CON Events announced today that CodeFutures, a leading supplier of database performance tools, has been named a “Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. CodeFutures is an independent software vendor focused on providing tools that deliver database performance tools that increase productivity during database development and increase database performance and scalability during production.
    The Internet of Things is a misnomer. That implies that everything is on the Internet, and that simply should not be - especially for things that are blurring the line between medical devices that stimulate like a pacemaker and quantified self-sensors like a pedometer or pulse tracker. The mesh of things that we manage must be segmented into zones of trust for sensing data, transmitting data, receiving command and control administrative changes, and peer-to-peer mesh messaging. In his session at @ThingsExpo, Ryan Bagnulo, Solution Architect / Software Engineer at SOA Software, focused on desi...
    "For over 25 years we have been working with a lot of enterprise customers and we have seen how companies create applications. And now that we have moved to cloud computing, mobile, social and the Internet of Things, we see that the market needs a new way of creating applications," stated Jesse Shiah, CEO, President and Co-Founder of AgilePoint Inc., in this SYS-CON.tv interview at 15th Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
    Things are being built upon cloud foundations to transform organizations. This CEO Power Panel at 15th Cloud Expo, moderated by Roger Strukhoff, Cloud Expo and @ThingsExpo conference chair, addressed the big issues involving these technologies and, more important, the results they will achieve. Rodney Rogers, chairman and CEO of Virtustream; Brendan O'Brien, co-founder of Aria Systems, Bart Copeland, president and CEO of ActiveState Software; Jim Cowie, chief scientist at Dyn; Dave Wagstaff, VP and chief architect at BSQUARE Corporation; Seth Proctor, CTO of NuoDB, Inc.; and Andris Gailitis, C...
    Recurring revenue models are great for driving new business in every market sector, but they are complex and need to be effectively managed to maximize profits. How you handle the range of options for pricing, co-terming and proration will ultimately determine the fate of your bottom line. In his session at 15th Cloud Expo, Brendan O'Brien, Co-founder at Aria Systems, session examined: How time impacts recurring revenue How to effectively handle customer plan changes The range of pricing and packaging options to consider
    Code Halos - aka "digital fingerprints" - are the key organizing principle to understand a) how dumb things become smart and b) how to monetize this dynamic. In his session at @ThingsExpo, Robert Brown, AVP, Center for the Future of Work at Cognizant Technology Solutions, outlined research, analysis and recommendations from his recently published book on this phenomena on the way leading edge organizations like GE and Disney are unlocking the Internet of Things opportunity and what steps your organization should be taking to position itself for the next platform of digital competition.
    The Industrial Internet revolution is now underway, enabled by connected machines and billions of devices that communicate and collaborate. The massive amounts of Big Data requiring real-time analysis is flooding legacy IT systems and giving way to cloud environments that can handle the unpredictable workloads. Yet many barriers remain until we can fully realize the opportunities and benefits from the convergence of machines and devices with Big Data and the cloud, including interoperability, data security and privacy.
    In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect at GE, and Ibrahim Gokcen, who leads GE's advanced IoT analytics, focused on the Internet of Things / Industrial Internet and how to make it operational for business end-users. Learn about the challenges posed by machine and sensor data and how to marry it with enterprise data. They also discussed the tips and tricks to provide the Industrial Internet as an end-user consumable service using Big Data Analytics and Industrial Cloud.
    SYS-CON Media announced that Splunk, a provider of the leading software platform for real-time Operational Intelligence, has launched an ad campaign on Big Data Journal. Splunk software and cloud services enable organizations to search, monitor, analyze and visualize machine-generated big data coming from websites, applications, servers, networks, sensors and mobile devices. The ads focus on delivering ROI - how improved uptime delivered $6M in annual ROI, improving customer operations by mining large volumes of unstructured data, and how data tracking delivers uptime when it matters most.
    IoT is still a vague buzzword for many people. In his session at @ThingsExpo, Mike Kavis, Vice President & Principal Cloud Architect at Cloud Technology Partners, discussed the business value of IoT that goes far beyond the general public's perception that IoT is all about wearables and home consumer services. He also discussed how IoT is perceived by investors and how venture capitalist access this space. Other topics discussed were barriers to success, what is new, what is old, and what the future may hold. Mike Kavis is Vice President & Principal Cloud Architect at Cloud Technology Pa...
    Dale Kim is the Director of Industry Solutions at MapR. His background includes a variety of technical and management roles at information technology companies. While his experience includes work with relational databases, much of his career pertains to non-relational data in the areas of search, content management, and NoSQL, and includes senior roles in technical marketing, sales engineering, and support engineering. Dale holds an MBA from Santa Clara University, and a BA in Computer Science from the University of California, Berkeley.
    SYS-CON Media announced that Cisco, a worldwide leader in IT that helps companies seize the opportunities of tomorrow, has launched a new ad campaign in Cloud Computing Journal. The ad campaign, a webcast titled 'Is Your Data Center Ready for the Application Economy?', focuses on the latest data center networking technologies, including SDN or ACI, and how customers are using SDN and ACI in their organizations to achieve business agility. The Cisco webcast is available on-demand.