|By Michael Kopp||
|October 27, 2012 10:00 AM EDT||
Traditional Enterprise Database vendors often bring up the lack of professional monitoring and management tool support for NoSQL solutions. Their argument is that enterprise applications require sophisticated tuning and monitoring of the database in order to ensure a performant and smooth operation. NoSQL Vendors, while arguing that this lack is not enough to favor RDBMS over their respective solutions, do agree. Several vendors try to differentiate themselves by providing enterprise level monitoring and management software, for example, Cassandra, MongoDB, HBase or others. Both are of course correct that monitoring and management of especially the performance aspect is important, but at the same time they are making the same mistake that RDBMS vendors have made for the last decade: they ignore the application.
Application Performance Management for Databases
What matters in the end is not the database performance itself, but the performance of the application that uses the database. We have explained the different problem patterns numerous times in this blog (...) so I won't go into them. All of them however have one thing in common: the application logic drives how the database is used and there is only so much that you can tune on the database to cover for mistakes on the application side. So we need to monitor and optimize that usage pattern itself. Application Logic again is driven by input data or in most cases end user interaction, thus we need to understand how end user behavior and end user actions drive the database usage. On the other hand we need to understand the impact of the database on these actions. What's important to understand is that the database can work and perform to the highest standards and still be the main bottleneck as far as the application is concerned - if it is wrongly used or has a bad access pattern. RDBMS and NoSQL Databases have that in common. Therefore the fundamental way I, as a performance engineer, do application performance analysis and management does not change:
First we need to understand if a particular business transaction slows down, has a general performance problem and if this has an impact on the end user:
Do any of the business transactions violate a baseline or have negative end user experience
Next we would isolate the high level cause of the slow down or performance issue. There are many ways of doing this, but it's always some kind of fault domain isolation:
Transaction Flow shows that we spend ~15 % waiting for the Database
This Transaction Flow shows that the Business Backend is calling a Cassandra Database Cluster
This tells us if we spend time waiting on the database. We see that there is not much difference between a regular database and something like an Apache Cassandra!
What's important here is that if the database shows up as the main contributor, this does not mean that the database itself is at fault, it might just be the applications usage of it. Thus I would need to check the usage and access pattern next:
This shows the select statements executed within a particular transaction type
This shows all Cassandra database statements against all participating Cassandra servers executed in a particular transaction
Here I might see that the reason for bad performance is that we execute too many statements per transaction, or that we read too much data. If that is the case I would need to check the application logic itself and potentially need a developer to fix it. The developer would of course want to understand where, why and in which particular transaction the statements are executed.
This shows a single Transaction (PurePath) and the Cassandra Statements executed within it
If however a particular statement is slow we, might very well have a database issue and I would talk to the DBA. The only difference in case of a NoSQL solution in this process is that you often have a database cluster, so I would want to understand if the problem is isolated to a particular node or not. And the DBA will want to understand if my access pattern leads to a good distribution across that cluster or if I am hammering away at a subset of them.
This hotspot view shows that Cassandra Server Node3 consumes much more Wait and I/O time than the others
The nice thing is that all in all my analysis does not differ between JDBC, ADO, Cassandra or one of the many NoSQL solutions.
APM Solution Support
There is of course a caveat here; it requires some level of support of the APM solution of choice. Sometimes it might be enough to see API calls on the NoSQL client in my response time breakdown. More often than not of course a little bit more context is desired, like which ColumnFamily is accessed and how many rows are read or which Database Node in the Cluster is serving a read. For this and the afore mentioned reasons I argue that APM solution support of your chosen Database or NoSQL solution is as important as the monitoring of the database itself.
I have spent considerable time tuning SQL statements and indexes, but in the end the best optimizations have always been those on the application and how the application uses the database. SQL Tuning almost always adds complexity and often is a workaround over bad application or data structure design. In the NoSQL world "SQL statement" tuning for the most part is a task of the past, but Data Structure Design has retained its importance! At the same time logic that traditionally resided in the database is now in the application layer, making application design even more important than before. So while some things have shifted, from an Application Performance Engineering Perspective I have to say: nothing really changed, it's still about the application. Now more than ever!
In high-production environments where release cycles are measured in hours or minutes — not days or weeks — there's little room for mistakes and no room for confusion. Everyone has to understand what's happening, in real time, and have the means to do whatever is necessary to keep applications up and running optimally. DevOps is a high-stakes world, but done well, it delivers the agility and performance to significantly impact business competitiveness.
Dec. 21, 2014 02:00 PM EST Reads: 547
The Internet of Things is not new. Historically, smart businesses have used its basic concept of leveraging data to drive better decision making and have capitalized on those insights to realize additional revenue opportunities. So, what has changed to make the Internet of Things one of the hottest topics in tech? In his session at @ThingsExpo, Chris Gray, Director, Embedded and Internet of Things, discussed the underlying factors that are driving the economics of intelligent systems. Discover ...
Dec. 21, 2014 02:00 PM EST Reads: 2,322
ScriptRock makes GuardRail, a DevOps-ready platform for configuration monitoring. Realizing we were spending way too much time digging up, cataloguing, and tracking machine configurations, we began writing our own scripts and tools to handle what is normally an enormous chore. Then we took the concept a step further, giving it a beautiful interface and making it simple enough for our bosses to understand. We named it GuardRail after its function - to allow businesses to move fast and stay sa...
Dec. 21, 2014 01:30 PM EST Reads: 721
"BSQUARE is in the business of selling software solutions for smart connected devices. It's obvious that IoT has moved from being a technology to being a fundamental part of business, and in the last 18 months people have said let's figure out how to do it and let's put some focus on it, " explained Dave Wagstaff, VP & Chief Architect, at BSQUARE Corporation, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 21, 2014 01:00 PM EST Reads: 1,971
SYS-CON Media announced today that Sematext launched a popular blog feed on DevOps Journal with over 6,000 story reads over the weekend. DevOps Journal is focused on this critical enterprise IT topic in the world of cloud computing. DevOps Journal brings valuable information to DevOps professionals who are transforming the way enterprise IT is done. Sematext is a globally distributed organization that builds innovative Cloud and On Premises solutions for performance monitoring, alerting an...
Dec. 21, 2014 01:00 PM EST Reads: 699
The major cloud platforms defy a simple, side-by-side analysis. Each of the major IaaS public-cloud platforms offers their own unique strengths and functionality. Options for on-site private cloud are diverse as well, and must be designed and deployed while taking existing legacy architecture and infrastructure into account. Then the reality is that most enterprises are embarking on a hybrid cloud strategy and programs. In this Power Panel at 15th Cloud Expo (http://www.CloudComputingExpo.com...
Dec. 21, 2014 11:30 AM EST Reads: 2,403
Verizon Enterprise Solutions is simplifying the cloud-purchasing experience for its clients, with the launch of Verizon Cloud Marketplace, a key foundational component of the company's robust ecosystem of enterprise-class technologies. The online storefront will initially feature pre-built cloud-based services from AppDynamics, Hitachi Data Systems, Juniper Networks, PfSense and Tervela. Available globally to enterprises using Verizon Cloud, Verizon Cloud Marketplace provides a one-stop shop fo...
Dec. 21, 2014 11:00 AM EST Reads: 1,984
Leysin American School is an exclusive, private boarding school located in Leysin, Switzerland. Leysin selected an OpenStack-powered, private cloud as a service to manage multiple applications and provide development environments for students across the institution. Seeking to meet rigid data sovereignty and data integrity requirements while offering flexible, on-demand cloud resources to users, Leysin identified OpenStack as the clear choice to round out the school's cloud strategy. Additional...
Dec. 21, 2014 11:00 AM EST Reads: 1,970
SYS-CON Events announced today that IDenticard 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. IDenticard™ is the security division of Brady Corp (NYSE: BRC), a $1.5 billion manufacturer of identification products. We have small-company values with the strength and stability of a major corporation. IDenticard offers local sales, support and service to our customers across the United States and Canada...
Dec. 21, 2014 10:00 AM EST Reads: 2,140
The move in recent years to cloud computing services and architectures has added significant pace to the application development and deployment environment. When enterprise IT can spin up large computing instances in just minutes, developers can also design and deploy in small time frames that were unimaginable a few years ago. The consequent move toward lean, agile, and fast development leads to the need for the development and operations sides to work very closely together. Thus, DevOps become...
Dec. 21, 2014 10:00 AM EST Reads: 2,040
SYS-CON Events announced today that Windstream, a leading provider of advanced network and cloud communications, has been named “Silver 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. Windstream (Nasdaq: WIN), a FORTUNE 500 and S&P 500 company, is a leading provider of advanced network communications, including cloud computing and managed services, to businesses nationwide. The company also offers broadband, p...
Dec. 21, 2014 08:30 AM EST Reads: 2,264
SYS-CON Events announced today that AIC, a leading provider of OEM/ODM server and storage solutions, 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. AIC is a leading provider of both standard OTS, off-the-shelf, and OEM/ODM server and storage solutions. With expert in-house design capabilities, validation, manufacturing and production, AIC's broad selection of products are highly flexible and are conf...
Dec. 21, 2014 06:30 AM EST Reads: 1,955
The BPM world is going through some evolution or changes where traditional business process management solutions really have nowhere to go in terms of development of the road map. In this demo at 15th Cloud Expo, Kyle Hansen, Director of Professional Services at AgilePoint, shows AgilePoint’s unique approach to dealing with this market circumstance by developing a rapid application composition or development framework.
Dec. 20, 2014 11:00 PM EST Reads: 1,337
SYS-CON Events announced today Isomorphic Software, the global leader in high-end, web-based business applications, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Isomorphic Software is the global leader in high-end, web-based business applications. We develop, market, and support the SmartClient & Smart GWT HTML5/Ajax platform, combining the productivity and performance of traditional desktop software ...
Dec. 20, 2014 11:00 PM EST Reads: 1,260
"Our premise is Docker is not enough. That's not a bad thing - we actually love Docker. At ActiveState all our products are based on open source technology and Docker is an up-and-coming piece of open source technology," explained Bart Copeland, President & CEO of ActiveState Software, in this SYS-CON.tv interview at DevOps Summit at Cloud Expo®, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 20, 2014 11:00 AM EST Reads: 1,995
AppZero has announced that its award-winning application migration software is now fully qualified within the Microsoft Azure Certified program. AppZero has undergone extensive technical evaluation with Microsoft Corp., earning its designation as Microsoft Azure Certified. As a result of AppZero's work with Microsoft, customers are able to easily find, purchase and deploy AppZero from the Azure Marketplace. With just a few clicks, users have an Azure-based solution for moving applications to the...
Dec. 20, 2014 09:00 AM EST Reads: 1,017
“In the past year we've seen a lot of stabilization of WebRTC. You can now use it in production with a far greater degree of certainty. A lot of the real developments in the past year have been in things like the data channel, which will enable a whole new type of application," explained Peter Dunkley, Technical Director at Acision, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 20, 2014 08:00 AM EST Reads: 1,348
The cloud is becoming the de-facto way for enterprises to leverage common infrastructure while innovating and one of the biggest obstacles facing public cloud computing is security. In his session at 15th Cloud Expo, Jeff Aliber, a global marketing executive at Verizon, discussed how the best place for web security is in the cloud. Benefits include: Functions as the first layer of defense Easy operation –CNAME change Implement an integrated solution Best architecture for addressing network-l...
Dec. 20, 2014 05:00 AM EST Reads: 1,349
“We help people build clusters, in the classical sense of the cluster. We help people put a full stack on top of every single one of those machines. We do the full bare metal install," explained Greg Bruno, Vice President of Engineering and co-founder of StackIQ, 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.
Dec. 19, 2014 11:45 PM EST Reads: 1,364