Welcome!

Industrial IoT Authors: Liz McMillan, Ed Featherston, Elizabeth White, Stackify Blog, Yeshim Deniz

Related Topics: Java IoT, Industrial IoT, Microservices Expo, IBM Cloud, Eclipse, Apache

Java IoT: Blog Feed Post

Configuring JMX in WebSphere 8.5

Historically most JMX implementations used the simple JMXMP protocol as the underlying transport

Like most application servers, WebSphere 8.5 has a rich management infrastructure based on JMX, or Java Management Extensions. In fact, the WebSphere administration console uses JMX to connect to the server to issue queries and perform administrative operations. In a previous post I showed you how to secure JBoss’ JMX connector. While there is a lot of information out there on how to connect to WebSphere via JMX, most of the examples involve either disabling SSL, or worse – disabling security globally. So let’s see how we can access WebSphere’s JMX connector remotely in a secure way. Like most things WebSphere, this could look very daunting at first, but once done, you will have a reliable and secure setup.

First, a Little Background
Historically most JMX implementations used the simple JMXMP protocol as the underlying transport. The newer versions of the the JMX Spec stipulate that each implementation should support RMI as a transport. As a result, both WebSphere and JBoss have moved away from JMXMP connectors in favor of RMI connectors for JMX. To complicate things even further, WebSphere’s version of RMI works on top of IIOP (and not JRMP as most RMI servers do). In practice, this means that any RMI client (including JMX clients) connecting to WebSphere should use some WebSphere-specific jar files on the classpath. Additionally, because RMI/IIOP uses SSL, we need to specify the correct path to the server’s keystore and trust store where the client and server SSL keys are stored.

Enabling the JMX Connector in WebSphere
For the rest of this post, we are going to assume the following:

  • WebSphere 8.5 is installed in /opt/IBM/WebSphere
  • You have created an application server node named server1, which is up and running
  • The administration console is deployed
  • You have the administrative credentials

Step 1. Log on to the Admin Console

Open a web browser, go to https://localhost:9043/ibm/console and log in with your administrative user and password:

Step 2. Navigate to the server settings:

From the menu on the left, go to Servers > Server Types > WebSphere Application Servers.

Step 3. Click on your server (default is server1) and select the Configuration tab.

Step 4. Scroll down to the Server Infrastructure section and expand Administration and select Administration Services

Step 5. Enable JSR160 RMI JMX Connector. Select JMX Connectors, then check JSR160RMIConnector and click Enable. When prompted, select Save to Master Configuration:

Step 6. Verify the IIOP Port Number Go back to the server page (see steps 2&3), but this time click on Ports (under the Communications heading). Make a note of the ORB_LISTENER_ADDRESS value (default is 9100)

Step 7. Restart the server. From the command line, go to your server profile folder, e.g.

[[email protected] bin]cd /opt/IBM/WebSphere/AppServer/profiles/AppSrv01/bin
[[email protected] bin]sudo ./stopServer.sh server1
ADMU0116I: Tool information is being logged in file
           /opt/IBM/WebSphere/AppServer/profiles/AppSrv01/logs/server1/stopServer.log
ADMU0128I: Starting tool with the AppSrv01 profile
ADMU3100I: Reading configuration for server: server1
ADMU3201I: Server stop request issued. Waiting for stop status.
ADMU4000I: Server server1 stop completed.

[[email protected] bin]$ sudo ./startServer.sh server1 
ADMU0116I: Tool information is being logged in file
           /opt/IBM/WebSphere/AppServer/profiles/AppSrv01/logs/server1/startServer.log
ADMU0128I: Starting tool with the AppSrv01 profile
ADMU3100I: Reading configuration for server: server1
ADMU3200I: Server launched. Waiting for initialization status.
ADMU3000I: Server server1 open for e-business; process id is 13397

After what seems like an eternity, your server will come up.

Step 8. Verify that the server is listening on port 9100:

[[email protected] ~]$ netstat -an | grep 9100
tcp        0      0 :::9100                     :::*                        LISTEN

Running JConsole
JConsole is the generic JMX console provided with the Java SDK. It is expected to work with any MBean server. On the other WebSphere’s MBean server exposes WebSphere-specific objects.  For this reason, we need to tweak the environment a little bit in order to make the WebSphere-specific classed known to JConsole. There are also some SSL-specific client and server keys (stored in a key store) that the JMX client needs to establish an SSL connection to the server. We will do all this (and more) with a simple shell script (be sure to change the PORT variable to match ORB_LISTENER_ADDRESS, and also to specify the correct IP address). After the script sets up the environment variables, it invokes the jconsole client bundled with the IBM JDK installed in the WebSphere directory:

#!/bin/bash

WAS_HOME=/opt/IBM/WebSphere/AppServer

# setup server-specific env variables
. $WAS_HOME/profiles/AppSrv01/bin/setupCmdLine.sh

#HOST=localhost
HOST=192.168.24.129 # Change this as needed
PORT=9100 

CLASSPATH=$JAVA_HOME/lib/jconsole.jar
CLASSPATH=$CLASSPATH:$WAS_HOME/runtimes/com.ibm.ws.admin.client_8.5.0.jar
CLASSPATH=$CLASSPATH:$WAS_HOME/runtimes/com.ibm.ws.ejb.thinclient_8.5.0.jar
CLASSPATH=$CLASSPATH:$WAS_HOME/runtimes/com.ibm.ws.orb_8.5.0.jar

$JAVA_HOME/bin/jconsole \
        -J-Djava.class.path=$CLASSPATH\
        -J$CLIENTSAS\
        -J$CLIENTSSL\
        service:jmx:iiop://$HOST:$PORT/jndi/JMXConnector

Once you run the script, JConsole should open and connect to the server. Enter your administrator credentials when prompted:

Feel free to explore the properties and administrative operations provided by the server:

In a future post, we will take things a step further by using the Monitis JMX monitor to gather metrics from WebSphere and upload them to your Monitis account. Until then, happy monitoring!

Read the original blog entry...

More Stories By Hovhannes Avoyan

Hovhannes Avoyan is the CEO of PicsArt, Inc.,

@ThingsExpo Stories
Organizations planning enterprise data center consolidation and modernization projects are faced with a challenging, costly reality. Requirements to deploy modern, cloud-native applications simultaneously with traditional client/server applications are almost impossible to achieve with hardware-centric enterprise infrastructure. Compute and network infrastructure are fast moving down a software-defined path, but storage has been a laggard. Until now.
DXWorldEXPO LLC announced today that the upcoming DXWorldEXPO | CloudEXPO New York event will feature 10 companies from Poland to participate at the "Poland Digital Transformation Pavilion" on November 12-13, 2018.
Digital Transformation is much more than a buzzword. The radical shift to digital mechanisms for almost every process is evident across all industries and verticals. This is often especially true in financial services, where the legacy environment is many times unable to keep up with the rapidly shifting demands of the consumer. The constant pressure to provide complete, omnichannel delivery of customer-facing solutions to meet both regulatory and customer demands is putting enormous pressure on...
The best way to leverage your CloudEXPO | DXWorldEXPO presence as a sponsor and exhibitor is to plan your news announcements around our events. The press covering CloudEXPO | DXWorldEXPO will have access to these releases and will amplify your news announcements. More than two dozen Cloud companies either set deals at our shows or have announced their mergers and acquisitions at CloudEXPO. Product announcements during our show provide your company with the most reach through our targeted audienc...
In an era of historic innovation fueled by unprecedented access to data and technology, the low cost and risk of entering new markets has leveled the playing field for business. Today, any ambitious innovator can easily introduce a new application or product that can reinvent business models and transform the client experience. In their Day 2 Keynote at 19th Cloud Expo, Mercer Rowe, IBM Vice President of Strategic Alliances, and Raejeanne Skillern, Intel Vice President of Data Center Group and ...
More and more brands have jumped on the IoT bandwagon. We have an excess of wearables – activity trackers, smartwatches, smart glasses and sneakers, and more that track seemingly endless datapoints. However, most consumers have no idea what “IoT” means. Creating more wearables that track data shouldn't be the aim of brands; delivering meaningful, tangible relevance to their users should be. We're in a period in which the IoT pendulum is still swinging. Initially, it swung toward "smart for smart...
DXWorldEXPO LLC announced today that All in Mobile, a mobile app development company from Poland, will exhibit at the 22nd International CloudEXPO | DXWorldEXPO. All In Mobile is a mobile app development company from Poland. Since 2014, they maintain passion for developing mobile applications for enterprises and startups worldwide.
@DevOpsSummit at Cloud Expo, taking place November 12-13 in New York City, NY, is co-located with 22nd international CloudEXPO | first international DXWorldEXPO and will feature technical sessions from a rock star conference faculty and the leading industry players in the world.
In his keynote at 19th Cloud Expo, Sheng Liang, co-founder and CEO of Rancher Labs, discussed the technological advances and new business opportunities created by the rapid adoption of containers. With the success of Amazon Web Services (AWS) and various open source technologies used to build private clouds, cloud computing has become an essential component of IT strategy. However, users continue to face challenges in implementing clouds, as older technologies evolve and newer ones like Docker c...
DXWorldEXPO LLC announced today that ICC-USA, a computer systems integrator and server manufacturing company focused on developing products and product appliances, will exhibit at the 22nd International CloudEXPO | DXWorldEXPO. DXWordEXPO New York 2018, colocated with CloudEXPO New York 2018 will be held November 11-13, 2018, in New York City. ICC is a computer systems integrator and server manufacturing company focused on developing products and product appliances to meet a wide range of ...
Coca-Cola’s Google powered digital signage system lays the groundwork for a more valuable connection between Coke and its customers. Digital signs pair software with high-resolution displays so that a message can be changed instantly based on what the operator wants to communicate or sell. In their Day 3 Keynote at 21st Cloud Expo, Greg Chambers, Global Group Director, Digital Innovation, Coca-Cola, and Vidya Nagarajan, a Senior Product Manager at Google, discussed how from store operations and ...
We are seeing a major migration of enterprises applications to the cloud. As cloud and business use of real time applications accelerate, legacy networks are no longer able to architecturally support cloud adoption and deliver the performance and security required by highly distributed enterprises. These outdated solutions have become more costly and complicated to implement, install, manage, and maintain.SD-WAN offers unlimited capabilities for accessing the benefits of the cloud and Internet. ...
Headquartered in Plainsboro, NJ, Synametrics Technologies has provided IT professionals and computer systems developers since 1997. Based on the success of their initial product offerings (WinSQL and DeltaCopy), the company continues to create and hone innovative products that help its customers get more from their computer applications, databases and infrastructure. To date, over one million users around the world have chosen Synametrics solutions to help power their accelerated business or per...
Founded in 2000, Chetu Inc. is a global provider of customized software development solutions and IT staff augmentation services for software technology providers. By providing clients with unparalleled niche technology expertise and industry experience, Chetu has become the premiere long-term, back-end software development partner for start-ups, SMBs, and Fortune 500 companies. Chetu is headquartered in Plantation, Florida, with thirteen offices throughout the U.S. and abroad.
Dion Hinchcliffe is an internationally recognized digital expert, bestselling book author, frequent keynote speaker, analyst, futurist, and transformation expert based in Washington, DC. He is currently Chief Strategy Officer at the industry-leading digital strategy and online community solutions firm, 7Summits.
Bill Schmarzo, author of "Big Data: Understanding How Data Powers Big Business" and "Big Data MBA: Driving Business Strategies with Data Science," is responsible for setting the strategy and defining the Big Data service offerings and capabilities for EMC Global Services Big Data Practice. As the CTO for the Big Data Practice, he is responsible for working with organizations to help them identify where and how to start their big data journeys. He's written several white papers, is an avid blogge...
Bill Schmarzo, author of "Big Data: Understanding How Data Powers Big Business" and "Big Data MBA: Driving Business Strategies with Data Science," is responsible for setting the strategy and defining the Big Data service offerings and capabilities for EMC Global Services Big Data Practice. As the CTO for the Big Data Practice, he is responsible for working with organizations to help them identify where and how to start their big data journeys. He's written several white papers, is an avid blogge...
Charles Araujo is an industry analyst, internationally recognized authority on the Digital Enterprise and author of The Quantum Age of IT: Why Everything You Know About IT is About to Change. As Principal Analyst with Intellyx, he writes, speaks and advises organizations on how to navigate through this time of disruption. He is also the founder of The Institute for Digital Transformation and a sought after keynote speaker. He has been a regular contributor to both InformationWeek and CIO Insight...
"IBM is really all in on blockchain. We take a look at sort of the history of blockchain ledger technologies. It started out with bitcoin, Ethereum, and IBM evaluated these particular blockchain technologies and found they were anonymous and permissionless and that many companies were looking for permissioned blockchain," stated René Bostic, Technical VP of the IBM Cloud Unit in North America, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Conventi...
Michael Maximilien, better known as max or Dr. Max, is a computer scientist with IBM. At IBM Research Triangle Park, he was a principal engineer for the worldwide industry point-of-sale standard: JavaPOS. At IBM Research, some highlights include pioneering research on semantic Web services, mashups, and cloud computing, and platform-as-a-service. He joined the IBM Cloud Labs in 2014 and works closely with Pivotal Inc., to help make the Cloud Found the best PaaS.