|By Hovhannes Avoyan||
|March 28, 2012 09:50 AM EDT||
HBase is a distributed, NoSQL, open-source database, initially conceived as an open-source alternative to Google’s proprietary BigTable. Originally, HBase was part of the Hadoop project, but was eventually spun off as a subproject. Given this legacy, it is not surprising that most often HBase is deployed on top of a Hadoop cluster (it used HDFS as its underlying storage), however a case study suggests that it can run on top of Amazon Elastic Block Store (EBS) as well. These days HBase is used by companies such as Adobe, Facebook, Twitter and Yahoo – and many others to process large amounts of data in real time, since it is ideally placed to store the input and/or the output of MapReduce jobs.
Monitoring HBase with Monitis and JMX
Like most products written in Java, both HBase and Hadoop contain built-in JMX instrumentation, which theoretically allows us to use any JMX client to view their performance metrics. Naturally, Monitis has just what the doctor ordered – a generic JMX agent that can be configured to monitor any JMX-enabled process through a point-and-click web interface.
Enabling JMX in HBase
By default the HBase JMX interface is disabled, but it can be enabled with relatively few configuration changes as explained in the official HBase documentation. (For security reasons and especially since we are not going to use JMX to modify the metric values or invoke administrative operations on the MBeans, I highly recommend that you do not add controlRole to jmxremote.passwd and jmxremote.access as the document suggests. Also, make sure these two files are owned by the login under which the HBase daemons will run, and that their permissions are 600, otherwise HBase will not start).
Installing the Monitis JMX Agent
The agent is implemented as a JEE web application and is packaged accordingly as a .war file. To download, log on to your Monitis account and select Monitors -> Manage Monitors -> JMX Monitors:
The JMX Monitors window will open. At the bottom of it, you will find a link to download the JMX Agent:
The .war file should be deployed in a standard JEE servlet container. While I recommend Tomcat due to its small footprint and ease of use, there are other options. If you already use an application server such as JBoss or WebSphere, you can deploy the JMX agent in it. While Tomcat offers many ways to deploy a .war file, the easiest one is to copy the .war file to Tomcat’s deploy folder. If Tomcat is already running, you don’t need to restart it – it will pick up and deploy the new .war file automatically.
Another consideration is which machine to deploy the monitor on. The HBase master would be the natural choice but your decision is going to be influenced by your specific network topology and corporate standards. In any case, the JMX agent should be able to accessthe HBase master on TCP port 10101 and optionally the Region Servers (data nodes) on port 10102. Aditionaly, Tomcat needs to be accessible on port 8080 (default).
Once the JMX agent .war file is deployed, go to http://<server_name>:8080/mon_jmx_agent. You should see the JMX agent’s login page which looks like this:
Enter your Monitis credentials – the same ones you use to login to your account on monitis.com – and click Login.
Creating an HBase Monitor in Monitis
Once it logs you in, the JMX Agent will prompt you to enter an Agent Name:
The Agent Name is used to uniquely identify the JMX Agent instance within Monitis. The metadata about the monitors is associated with your acount on monitis.com and the JMX agent will automatically download and run any existing monitors previously defined for this agent name. For this reason, you want to choose a unique name for each JMX agent deployment. Once you enter a meaningful name and click Save, you should see the JMX Parameters page:
Make sure you enter the correct JMX port number and credentials you configured in HBase and click Submit to go to the next page:
Select the hadoop domain from the drop down – HBase’s MBeans live there for historical reasons. (You may also want to explore other domains – such as java.lang, which provides important information on JVM’s internals). Within the hadoop domain, select the HBase service -> RPC Statistics. The next screen shows an impressive number of metrics:
Under Monitor Name enter something meaningful. This is how your monitor will appear on monitis.com. Check interval is in minutes. Select the following attributes:
While most attribute names are self-explanatory, the MBean does not provide a meaningful description for the attributes, so feel free to examine the JMX section of the HBase book. Once you have selected all the metrics you are interested in, click on the Add Monitor button at the bottom of the page.
We are now ready to log on to Monitis and examine the data collected by our newly created monitor. If you are just logging on, Monitis will prompt you to add the new monitor, otherwise go to Monitors -> Manage Monitors -> JMX Monitors to open the familiar JMX Monitors screen:
Select the check box next to the new monitor and click Add to Window to open a new monitor window:
That’s it! As with any monitor, you can choose between multiple views and define notifications for your HBase performance metrics:
And finally, a few words about architecture. First, the JMX agent’s collector is implemented in the web application (war file). For this reason, you want to make sure that Tomcat (or whatever application server you deployed the agent’s war file on) keeps running for as long as you need to collect data. You may want to monitor the application server process itself and make sure it starts up automatically when the system is booted. Second, when you log on to the JMX Agent’s web interface, your credentials are submitted over an unencrypted HTTP connection (at least with the default Tomcat setup). This might be OK if you are viewing over the corporate LAN, otherwise you should look into enabling HTTPS on Tomcat. Alternatively, you could front Tomcat with Apache and let it do the heavy lifting.
In this installment we introduced the Monitis JMX Agent and hopefully convinced you how easy it is to monitor your HBase cluster. In a future post you will how you can use the agent to monitor JBoss. Happy monitoring!
Wearable technology was dominant at this year’s International Consumer Electronics Show (CES) , and MWC was no exception to this trend. New versions of favorites, such as the Samsung Gear (three new products were released: the Gear 2, the Gear 2 Neo and the Gear Fit), shared the limelight with new wearables like Pebble Time Steel (the new premium version of the company’s previously released smartwatch) and the LG Watch Urbane. The most dramatic difference at MWC was an emphasis on presenting wearables as fashion accessories and moving away from the original clunky technology associated with t...
Mar. 31, 2015 10:00 PM EDT Reads: 1,594
SYS-CON Events announced today that robomq.io will exhibit at SYS-CON's @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. robomq.io is an interoperable and composable platform that connects any device to any application. It helps systems integrators and the solution providers build new and innovative products and service for industries requiring monitoring or intelligence from devices and sensors.
Mar. 31, 2015 06:00 PM EDT Reads: 1,602
Internet of Things (IoT) will be a hybrid ecosystem of diverse devices and sensors collaborating with operational and enterprise systems to create the next big application. In their session at @ThingsExpo, Bramh Gupta, founder and CEO of robomq.io, and Fred Yatzeck, principal architect leading product development at robomq.io, will discuss how choosing the right middleware and integration strategy from the get-go will enable IoT solution developers to adapt and grow with the industry, while at the same time reduce Time to Market (TTM) by using plug and play capabilities offered by a robust I...
Mar. 31, 2015 04:00 PM EDT Reads: 607
After making a doctor’s appointment via your mobile device, you receive a calendar invite. The day of your appointment, you get a reminder with the doctor’s location and contact information. As you enter the doctor’s exam room, the medical team is equipped with the latest tablet containing your medical history – he or she makes real time updates to your medical file. At the end of your visit, you receive an electronic prescription to your preferred pharmacy and can schedule your next appointment.
Mar. 31, 2015 03:45 PM EDT Reads: 1,019
SYS-CON Events announced today that Solgenia will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Solgenia is the global market leader in Cloud Collaboration and Cloud Infrastructure software solutions. Designed to “Bridge the Gap” between Personal and Professional Social, Mobile and Cloud user experiences, our solutions help large and medium-sized organizations dr...
Mar. 31, 2015 03:00 PM EDT Reads: 3,045
While not quite mainstream yet, WebRTC is starting to gain ground with Carriers, Enterprises and Independent Software Vendors (ISV’s) alike. WebRTC makes it easy for developers to add audio and video communications into their applications by using Web browsers as their platform. But like any market, every customer engagement has unique requirements, as well as constraints. And of course, one size does not fit all. In her session at WebRTC Summit, Dr. Natasha Tamaskar, Vice President, Head of Cloud and Mobile Strategy at GENBAND, will explore what is needed to take a real time communications ...
Mar. 31, 2015 02:39 PM EDT Reads: 544
SYS-CON Events announced today that Litmus Automation will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Litmus Automation’s vision is to provide a solution for companies that are in a rush to embrace the disruptive Internet of Things technology and leverage it for real business challenges. Litmus Automation simplifies the complexity of connected devices applications with Loop, a secure and scalable cloud platform.
Mar. 31, 2015 12:00 PM EDT Reads: 655
The world's leading Cloud event, Cloud Expo has launched Microservices Journal on the SYS-CON.com portal, featuring over 19,000 original articles, news stories, features, and blog entries. DevOps Journal is focused on this critical enterprise IT topic in the world of cloud computing. Microservices Journal offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. Follow new article posts on Twitter at @MicroservicesE
Mar. 31, 2015 12:00 PM EDT Reads: 1,572
SYS-CON Events announced today the IoT Bootcamp – Jumpstart Your IoT Strategy, being held June 9–10, 2015, in conjunction with 16th Cloud Expo and Internet of @ThingsExpo at the Javits Center in New York City. This is your chance to jumpstart your IoT strategy. Combined with real-world scenarios and use cases, the IoT Bootcamp is not just based on presentations but includes hands-on demos and walkthroughs. We will introduce you to a variety of Do-It-Yourself IoT platforms including Arduino, Raspberry Pi, BeagleBone, Spark and Intel Edison. You will also get an overview of cloud technologies s...
Mar. 31, 2015 11:00 AM EDT Reads: 2,250
Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities. Accordingly, attendees at the upcoming 16th Cloud Expo at the Javits Center in New York June 9-11 will find fresh new content in a new track called PaaS | Containers & Microservices Containers are not being considered for the first time by the cloud community, but a current era of re-consideration has pushed them to the top of the cloud agenda. With the launch of Docker's initial release in March of 2013, interest was revved up several notches. Then late last...
Mar. 31, 2015 09:15 AM EDT Reads: 2,305
The WebRTC Summit 2015 New York, to be held June 9-11, 2015, at the Javits Center in New York, NY, announces that its Call for Papers is open. Topics include all aspects of improving IT delivery by eliminating waste through automated business models leveraging cloud technologies. WebRTC Summit is co-located with 16th International Cloud Expo, @ThingsExpo, Big Data Expo, and DevOps Summit.
Mar. 31, 2015 09:00 AM EDT Reads: 1,731
SOA Software has changed its name to Akana. With roots in Web Services and SOA Governance, Akana has established itself as a leader in API Management and is expanding into cloud integration as an alternative to the traditional heavyweight enterprise service bus (ESB). The company recently announced that it achieved more than 90% year-over-year growth. As Akana, the company now addresses the evolution and diversification of SOA, unifying security, management, and DevOps across SOA, APIs, microservices, and more.
Mar. 31, 2015 08:30 AM EDT Reads: 2,115
The list of ‘new paradigm’ technologies that now surrounds us appears to be at an all time high. From cloud computing and Big Data analytics to Bring Your Own Device (BYOD) and the Internet of Things (IoT), today we have to deal with what the industry likes to call ‘paradigm shifts’ at every level of IT. This is disruption; of course, we understand that – change is almost always disruptive.
Mar. 30, 2015 04:00 PM EDT Reads: 1,199
SYS-CON Events announced today that SafeLogic has been named “Bag Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. SafeLogic provides security products for applications in mobile and server/appliance environments. SafeLogic’s flagship product CryptoComply is a FIPS 140-2 validated cryptographic engine designed to secure data on servers, workstations, appliances, mobile devices, and in the Cloud.
Mar. 30, 2015 11:00 AM EDT Reads: 1,557
GENBAND has announced that SageNet is leveraging the Nuvia platform to deliver Unified Communications as a Service (UCaaS) to its large base of retail and enterprise customers. Nuvia’s cloud-based solution provides SageNet’s customers with a full suite of business communications and collaboration tools. Two large national SageNet retail customers have recently signed up to deploy the Nuvia platform and the company will continue to sell the service to new and existing customers. Nuvia’s capabilities include HD voice, video, multimedia messaging, mobility, conferencing, Web collaboration, deskt...
Mar. 30, 2015 01:00 AM EDT Reads: 1,535
SYS-CON Media announced today that @WebRTCSummit Blog, the largest WebRTC resource in the world, has been launched. @WebRTCSummit Blog offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. @WebRTCSummit Blog can be bookmarked ▸ Here @WebRTCSummit conference site can be bookmarked ▸ Here
Mar. 29, 2015 10:00 PM EDT Reads: 1,883
SYS-CON Events announced today that Cisco, the worldwide leader in IT that transforms how people connect, communicate and collaborate, has been named “Gold 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 City, NY. Cisco makes amazing things happen by connecting the unconnected. Cisco has shaped the future of the Internet by becoming the worldwide leader in transforming how people connect, communicate and collaborate. Cisco and our partners are building the platform for the Internet of Everything by connecting the...
Mar. 29, 2015 07:00 PM EDT Reads: 5,292
Temasys has announced senior management additions to its team. Joining are David Holloway as Vice President of Commercial and Nadine Yap as Vice President of Product. Over the past 12 months Temasys has doubled in size as it adds new customers and expands the development of its Skylink platform. Skylink leads the charge to move WebRTC, traditionally seen as a desktop, browser based technology, to become a ubiquitous web communications technology on web and mobile, as well as Internet of Things compatible devices.
Mar. 29, 2015 06:00 PM EDT Reads: 1,897
Docker is an excellent platform for organizations interested in running microservices. It offers portability and consistency between development and production environments, quick provisioning times, and a simple way to isolate services. In his session at DevOps Summit at 16th Cloud Expo, Shannon Williams, co-founder of Rancher Labs, will walk through these and other benefits of using Docker to run microservices, and provide an overview of RancherOS, a minimalist distribution of Linux designed expressly to run Docker. He will also discuss Rancher, an orchestration and service discovery platf...
Mar. 29, 2015 04:15 PM EDT Reads: 2,478
SYS-CON Events announced today that Vitria Technology, Inc. will exhibit at SYS-CON’s @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Vitria will showcase the company’s new IoT Analytics Platform through live demonstrations at booth #330. Vitria’s IoT Analytics Platform, fully integrated and powered by an operational intelligence engine, enables customers to rapidly build and operationalize advanced analytics to deliver timely business outcomes for use cases across the industrial, enterprise, and consumer segments.
Mar. 29, 2015 03:30 PM EDT Reads: 2,239