|By Kevin Haverlock||
|February 23, 2005 12:00 AM EST||
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.
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]
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.
|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 v18.104.22.168. 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.
With the Apple Watch making its way onto wrists all over the world, it’s only a matter of time before it becomes a staple in the workplace. In fact, Forrester reported that 68 percent of technology and business decision-makers characterize wearables as a top priority for 2015. Recognizing their business value early on, FinancialForce.com was the first to bring ERP to wearables, helping streamline communication across front and back office functions. In his session at @ThingsExpo, Kevin Roberts, GM of Platform at FinancialForce.com, will discuss the value of business applications on wearable ...
Sep. 5, 2015 06:00 AM EDT Reads: 130
The Internet of Things is in the early stages of mainstream deployment but it promises to unlock value and rapidly transform how organizations manage, operationalize, and monetize their assets. IoT is a complex structure of hardware, sensors, applications, analytics and devices that need to be able to communicate geographically and across all functions. Once the data is collected from numerous endpoints, the challenge then becomes converting it into actionable insight.
Sep. 5, 2015 06:00 AM EDT Reads: 131
Contrary to mainstream media attention, the multiple possibilities of how consumer IoT will transform our everyday lives aren’t the only angle of this headline-gaining trend. There’s a huge opportunity for “industrial IoT” and “Smart Cities” to impact the world in the same capacity – especially during critical situations. For example, a community water dam that needs to release water can leverage embedded critical communications logic to alert the appropriate individuals, on the right device, as soon as they are needed to take action.
Sep. 5, 2015 05:15 AM EDT Reads: 140
Manufacturing connected IoT versions of traditional products requires more than multiple deep technology skills. It also requires a shift in mindset, to realize that connected, sensor-enabled “things” act more like services than what we usually think of as products. In his session at @ThingsExpo, David Friedman, CEO and co-founder of Ayla Networks, will discuss how when sensors start generating detailed real-world data about products and how they’re being used, smart manufacturers can use the data to create additional revenue streams, such as improved warranties or premium features. Or slash...
Sep. 5, 2015 05:00 AM EDT Reads: 110
In his session at @ThingsExpo, Lee Williams, a producer of the first smartphones and tablets, will talk about how he is now applying his experience in mobile technology to the design and development of the next generation of Environmental and Sustainability Services at ETwater. He will explain how M2M controllers work through wirelessly connected remote controls; and specifically delve into a retrofit option that reverse-engineers control codes of existing conventional controller systems so they don't have to be replaced and are instantly converted to become smart, connected devices.
Sep. 5, 2015 05:00 AM EDT Reads: 293
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
Sep. 5, 2015 01:30 AM EDT Reads: 1,005
All major researchers estimate there will be tens of billions devices - computers, smartphones, tablets, and sensors - connected to the Internet by 2020. This number will continue to grow at a rapid pace for the next several decades. With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo, November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be.
Sep. 5, 2015 01:00 AM EDT Reads: 265
SYS-CON Events announced today that Pythian, a global IT services company specializing in helping companies leverage disruptive technologies to optimize revenue-generating systems, has been named “Bronze Sponsor” of SYS-CON's 17th Cloud Expo, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Founded in 1997, Pythian is a global IT services company that helps companies compete by adopting disruptive technologies such as cloud, Big Data, advanced analytics, and DevOps to advance innovation and increase agility. Specializing in designing, imple...
Sep. 5, 2015 01:00 AM EDT Reads: 417
Too often with compelling new technologies market participants become overly enamored with that attractiveness of the technology and neglect underlying business drivers. This tendency, what some call the “newest shiny object syndrome,” is understandable given that virtually all of us are heavily engaged in technology. But it is also mistaken. Without concrete business cases driving its deployment, IoT, like many other technologies before it, will fade into obscurity.
Sep. 4, 2015 06:45 PM EDT Reads: 458
With the proliferation of connected devices underpinning new Internet of Things systems, Brandon Schulz, Director of Luxoft IoT – Retail, will be looking at the transformation of the retail customer experience in brick and mortar stores in his session at @ThingsExpo. Questions he will address include: Will beacons drop to the wayside like QR codes, or be a proximity-based profit driver? How will the customer experience change in stores of all types when everything can be instrumented and analyzed? As an area of investment, how might a retail company move towards an innovation methodolo...
Sep. 4, 2015 04:15 PM EDT Reads: 536
WebRTC services have already permeated corporate communications in the form of videoconferencing solutions. However, WebRTC has the potential of going beyond and catalyzing a new class of services providing more than calls with capabilities such as mass-scale real-time media broadcasting, enriched and augmented video, person-to-machine and machine-to-machine communications. In his session at @ThingsExpo, Luis Lopez, CEO of Kurento, will introduce the technologies required for implementing these ideas and some early experiments performed in the Kurento open source software community in areas ...
Sep. 4, 2015 03:45 PM EDT Reads: 152
While many app developers are comfortable building apps for the smartphone, there is a whole new world out there. In his session at @ThingsExpo, Narayan Sainaney, Co-founder and CTO of Mojio, will discuss how the business case for connected car apps is growing and, with open platform companies having already done the heavy lifting, there really is no barrier to entry.
Sep. 4, 2015 03:00 PM EDT Reads: 233
As more intelligent IoT applications shift into gear, they’re merging into the ever-increasing traffic flow of the Internet. It won’t be long before we experience bottlenecks, as IoT traffic peaks during rush hours. Organizations that are unprepared will find themselves by the side of the road unable to cross back into the fast lane. As billions of new devices begin to communicate and exchange data – will your infrastructure be scalable enough to handle this new interconnected world?
Sep. 4, 2015 02:00 PM EDT Reads: 275
SYS-CON Events announced today that IceWarp will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. IceWarp, the leader of cloud and on-premise messaging, delivers secured email, chat, documents, conferencing and collaboration to today's mobile workforce, all in one unified interface
Sep. 4, 2015 12:00 PM EDT Reads: 508
SYS-CON Events announced today that Micron Technology, Inc., a global leader in advanced semiconductor systems, will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Micron’s broad portfolio of high-performance memory technologies – including DRAM, NAND and NOR Flash – is the basis for solid state drives, modules, multichip packages and other system solutions. Backed by more than 35 years of technology leadership, Micron's memory solutions enable the world's most innovative computing, consumer,...
Sep. 4, 2015 12:00 PM EDT Reads: 300
As more and more data is generated from a variety of connected devices, the need to get insights from this data and predict future behavior and trends is increasingly essential for businesses. Real-time stream processing is needed in a variety of different industries such as Manufacturing, Oil and Gas, Automobile, Finance, Online Retail, Smart Grids, and Healthcare. Azure Stream Analytics is a fully managed distributed stream computation service that provides low latency, scalable processing of streaming data in the cloud with an enterprise grade SLA. It features built-in integration with Azur...
Sep. 4, 2015 11:45 AM EDT Reads: 407
SYS-CON Events announced today the Containers & Microservices Bootcamp, being held November 3-4, 2015, in conjunction with 17th Cloud Expo, @ThingsExpo, and @DevOpsSummit at the Santa Clara Convention Center in Santa Clara, CA. This is your chance to get started with the latest technology in the industry. Combined with real-world scenarios and use cases, the Containers and Microservices Bootcamp, led by Janakiram MSV, a Microsoft Regional Director, will include presentations as well as hands-on demos and comprehensive walkthroughs.
Sep. 4, 2015 11:00 AM EDT Reads: 439
17th Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterprises are using some form of XaaS – software, platform, and infrastructure as a service.
Sep. 4, 2015 11:00 AM EDT Reads: 1,623
SYS-CON Events announced today that the "Second Containers & Microservices Expo" will take place November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities.
Sep. 4, 2015 10:45 AM EDT Reads: 673
Akana has announced the availability of the new Akana Healthcare Solution. The API-driven solution helps healthcare organizations accelerate their transition to being secure, digitally interoperable businesses. It leverages the Health Level Seven International Fast Healthcare Interoperability Resources (HL7 FHIR) standard to enable broader business use of medical data. Akana developed the Healthcare Solution in response to healthcare businesses that want to increase electronic, multi-device access to health records while reducing operating costs and complying with government regulations.
Sep. 4, 2015 09:30 AM EDT Reads: 340