|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!
Technology vendors and analysts are eager to paint a rosy picture of how wonderful IoT is and why your deployment will be great with the use of their products and services. While it is easy to showcase successful IoT solutions, identifying IoT systems that missed the mark or failed can often provide more in the way of key lessons learned. In his session at @ThingsExpo, Peter Vanderminden, Principal Industry Analyst for IoT & Digital Supply Chain to Flatiron Strategies, will focus on how IoT de...
Sep. 25, 2016 05:30 AM EDT Reads: 971
Fact is, enterprises have significant legacy voice infrastructure that’s costly to replace with pure IP solutions. How can we bring this analog infrastructure into our shiny new cloud applications? There are proven methods to bind both legacy voice applications and traditional PSTN audio into cloud-based applications and services at a carrier scale. Some of the most successful implementations leverage WebRTC, WebSockets, SIP and other open source technologies. In his session at @ThingsExpo, Da...
Sep. 25, 2016 04:45 AM EDT Reads: 1,495
SYS-CON Events announced today that China Unicom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. China United Network Communications Group Co. Ltd ("China Unicom") was officially established in 2009 on the basis of the merger of former China Netcom and former China Unicom. China Unicom mainly operates a full range of telecommunications services including mobile broadband (GSM, WCDMA, LTE F...
Sep. 25, 2016 04:15 AM EDT Reads: 1,677
SYS-CON Events announced today that Roundee / LinearHub will exhibit at the WebRTC Summit at @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LinearHub provides Roundee Service, a smart platform for enterprise video conferencing with enhanced features such as automatic recording and transcription service. Slack users can integrate Roundee to their team via Slack’s App Directory, and '/roundee' command lets your video conference ...
Sep. 25, 2016 04:15 AM EDT Reads: 1,380
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long dev...
Sep. 25, 2016 03:15 AM EDT Reads: 3,348
Almost two-thirds of companies either have or soon will have IoT as the backbone of their business in 2016. However, IoT is far more complex than most firms expected. How can you not get trapped in the pitfalls? In his session at @ThingsExpo, Tony Shan, a renowned visionary and thought leader, will introduce a holistic method of IoTification, which is the process of IoTifying the existing technology and business models to adopt and leverage IoT. He will drill down to the components in this fra...
Sep. 25, 2016 03:00 AM EDT Reads: 1,468
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
Sep. 25, 2016 02:45 AM EDT Reads: 1,708
I'm a lonely sensor. I spend all day telling the world how I'm feeling, but none of the other sensors seem to care. I want to be connected. I want to build relationships with other sensors to be more useful for my human. I want my human to understand that when my friends next door are too hot for a while, I'll soon be flaming. And when all my friends go outside without me, I may be left behind. Don't just log my data; use the relationship graph. In his session at @ThingsExpo, Ryan Boyd, Engi...
Sep. 25, 2016 02:15 AM EDT Reads: 1,207
SYS-CON Events announced today that Numerex Corp, a leading provider of managed enterprise solutions enabling the Internet of Things (IoT), will exhibit at the 19th International Cloud Expo | @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Numerex Corp. (NASDAQ:NMRX) is a leading provider of managed enterprise solutions enabling the Internet of Things (IoT). The Company's solutions produce new revenue streams or create operating...
Sep. 25, 2016 12:45 AM EDT Reads: 1,929
Information technology is an industry that has always experienced change, and the dramatic change sweeping across the industry today could not be truthfully described as the first time we've seen such widespread change impacting customer investments. However, the rate of the change, and the potential outcomes from today's digital transformation has the distinct potential to separate the industry into two camps: Organizations that see the change coming, embrace it, and successful leverage it; and...
Sep. 25, 2016 12:45 AM EDT Reads: 1,036
Data is an unusual currency; it is not restricted by the same transactional limitations as money or people. In fact, the more that you leverage your data across multiple business use cases, the more valuable it becomes to the organization. And the same can be said about the organization’s analytics. In his session at 19th Cloud Expo, Bill Schmarzo, CTO for the Big Data Practice at EMC, will introduce a methodology for capturing, enriching and sharing data (and analytics) across the organizati...
Sep. 24, 2016 09:45 PM EDT Reads: 1,612
The vision of a connected smart home is becoming reality with the application of integrated wireless technologies in devices and appliances. The use of standardized and TCP/IP networked wireless technologies in line-powered and battery operated sensors and controls has led to the adoption of radios in the 2.4GHz band, including Wi-Fi, BT/BLE and 802.15.4 applied ZigBee and Thread. This is driving the need for robust wireless coexistence for multiple radios to ensure throughput performance and th...
Sep. 24, 2016 08:30 PM EDT Reads: 1,446
The Internet of Things can drive efficiency for airlines and airports. In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect with GE, and Sudip Majumder, senior director of development at Oracle, will discuss the technical details of the connected airline baggage and related social media solutions. These IoT applications will enhance travelers' journey experience and drive efficiency for the airlines and the airports. The session will include a working demo and a technical d...
Sep. 24, 2016 08:00 PM EDT Reads: 1,655
SYS-CON Events announced today the Enterprise IoT Bootcamp, being held November 1-2, 2016, in conjunction with 19th Cloud Expo | @ThingsExpo at the Santa Clara Convention Center in Santa Clara, CA. Combined with real-world scenarios and use cases, the Enterprise IoT Bootcamp is not just based on presentations but with hands-on demos and detailed walkthroughs. We will introduce you to a variety of real world use cases prototyped using Arduino, Raspberry Pi, BeagleBone, Spark, and Intel Edison. Y...
Sep. 24, 2016 07:00 PM EDT Reads: 2,793
If you’re responsible for an application that depends on the data or functionality of various IoT endpoints – either sensors or devices – your brand reputation depends on the security, reliability, and compliance of its many integrated parts. If your application fails to deliver the expected business results, your customers and partners won't care if that failure stems from the code you developed or from a component that you integrated. What can you do to ensure that the endpoints work as expect...
Sep. 24, 2016 04:30 PM EDT Reads: 1,515
Enterprise IT has been in the era of Hybrid Cloud for some time now. But it seems most conversations about Hybrid are focused on integrating AWS, Microsoft Azure, or Google ECM into existing on-premises systems. Where is all the Private Cloud? What do technology providers need to do to make their offerings more compelling? How should enterprise IT executives and buyers define their focus, needs, and roadmap, and communicate that clearly to the providers?
Sep. 24, 2016 01:00 PM EDT Reads: 1,493
The Transparent Cloud-computing Consortium (abbreviation: T-Cloud Consortium) will conduct research activities into changes in the computing model as a result of collaboration between "device" and "cloud" and the creation of new value and markets through organic data processing High speed and high quality networks, and dramatic improvements in computer processing capabilities, have greatly changed the nature of applications and made the storing and processing of data on the network commonplace.
Sep. 24, 2016 12:00 PM EDT Reads: 784
SYS-CON Events announced today that SoftLayer, an IBM Company, has been named “Gold Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. SoftLayer, an IBM Company, provides cloud infrastructure as a service from a growing number of data centers and network points of presence around the world. SoftLayer’s customers range from Web startups to global enterprises.
Sep. 24, 2016 12:00 PM EDT Reads: 786
Digital innovation is the next big wave of business transformation based on digital technologies of which IoT and Big Data are key components, For example: Business boundary innovation is a challenge to excavate third-party business value using IoT and BigData, like Nest Business structure innovation may propose re-building business structure from scratch, as Uber does in the taxicab industry The social model innovation is also a big challenge to the new social architecture with the design fr...
Sep. 24, 2016 11:45 AM EDT Reads: 1,050
SYS-CON Events announced today that Pulzze Systems will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Pulzze Systems, Inc. provides infrastructure products for the Internet of Things to enable any connected device and system to carry out matched operations without programming. For more information, visit http://www.pulzzesystems.com.
Sep. 24, 2016 10:45 AM EDT Reads: 1,726