|By Anne Lee||
|November 28, 2012 09:15 AM EST||
MySQL, just like other relational databases, is complicated. It can jam at any time jeopardizing your applications or business without notice. Most MySQL malfunctions are due to common mistakes. It is essential to avoid these mistakes, often hidden by configuration trap or workload, to ensure that MySQL server runs effectively. Here are 10 tips to ensure excellent performance of the MySQL server.
Profile your workload
Profiling the server's workload is the best way to know how the server spends time. This exposes the most exclusive questions for tuning. Time is very essential here as one considers how quickly the server completes a request when a query is issued it. Similar queries are grouped by these tools together in a row in order to distinguish slow and fast queries.
Understand the fundamental resources
A database server requires four important resources to function: CPU, disk, network and memory all of which if erratic, overloaded or weak may cause the database to malfunction. It is important to understand these resources in troubleshooting problems and choosing hardware. Ensure all components are functioning well and reasonably balanced against each other when choosing hardware for MySQL. Server performance can be cheaply enhanced by adding memory on disk-bound workloads. On the other hand, MySQL performs best with fast CPUs since each query cannot be paralleled across CPUs. When troubleshooting, performance and utilization of resources must be checked carefully to determine whether it is overloaded or functioning poorly. This also goes for using database conversion tools.
MySQL should not be set as a queue
Queues may invade your application without your knowledge. For instance, when a status is set such that a particular worker process claims it before acting on it, then you are certainly creating a queue. Queues cause problems by serializing workload and preventing tasks from being executed in parallel.
MySQL can be optimized to do cheap work first then the hard work, on a smaller set of resulting data. For instance, when searching for something within a radius of a given geographical point, the great-circle (Haversine) formula is the tool used for calculating distance on the surface of a sphere. This formula, however, needs a lot of CPU-sensitive trigonometric calculations thus posing a problem as the CPU utilization rises due to slow operations. It is hence necessary to pare down records to a smaller subset of the total and trimming the resulting set to a precise circle before using this formula
Understanding the scalability death traps
Unlike common beliefs, scalability is not vague as there are exact mathematical equations expressing scalability. The equations show why systems do not scale as they should. The universal scalability law explains scaling in terms of serialization and crosstalk. Parallel processes that must stop for a serialized process to take place are limited in scalability. Similarly, when parallel processes chat with each other consistently to coordinate their work, they hinder each other. Applications scale better when crosstalk and serialization are avoided, which translate to locks on rows for MySQL.
Too much focus should not be placed on configuration
DBAs spend time tweaking configurations resulting in a small improvement that can be damaging. Not all MySQL defaults should be configured. Ninety-five percent of the server's best performance can be obtained by correct setting of 10 options. Server tuning tools are recommended for giving guidelines.
Look out for pagination queries that cause the server to malfunction
This causes the server to generate a lot of work and discard rows. Optimization can be done to set the final row as the starting point for another set of results.
Save statistics promptly, alert reluctantly
It is important to capture and save metrics as they are essential in effecting changes in the system. Meanwhile, alert sparingly and only on conditions indicating an actionable problem.
Learn the three rules of indexing
Properly designed indexes serve three functions in a database: Allow the server identify groups of adjacent rows, avoid sorting by reading in a preferred order and satisfy all queries from the index alone.
Leverage the expertise of your peers
Doing what you feel is logical will work most of the times but not all the times. The time it doesn't work may cost you time and money.
The many IoT deployments around the world are busy integrating smart devices and sensors into their enterprise IT infrastructures. Yet all of this technology – and there are an amazing number of choices – is of no use without the software to gather, communicate, and analyze the new data flows. Without software, there is no IT. In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, Dave McCarthy, Director of Products at Bsquare Corporation; Alan Williamson, Principal ...
Jan. 17, 2017 10:30 PM EST Reads: 2,312
IoT is at the core or many Digital Transformation initiatives with the goal of re-inventing a company's business model. We all agree that collecting relevant IoT data will result in massive amounts of data needing to be stored. However, with the rapid development of IoT devices and ongoing business model transformation, we are not able to predict the volume and growth of IoT data. And with the lack of IoT history, traditional methods of IT and infrastructure planning based on the past do not app...
Jan. 17, 2017 10:30 PM EST Reads: 626
WebRTC has had a real tough three or four years, and so have those working with it. Only a few short years ago, the development world were excited about WebRTC and proclaiming how awesome it was. You might have played with the technology a couple of years ago, only to find the extra infrastructure requirements were painful to implement and poorly documented. This probably left a bitter taste in your mouth, especially when things went wrong.
Jan. 17, 2017 09:15 PM EST Reads: 7,504
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
Jan. 17, 2017 08:00 PM EST Reads: 11,587
A critical component of any IoT project is what to do with all the data being generated. This data needs to be captured, processed, structured, and stored in a way to facilitate different kinds of queries. Traditional data warehouse and analytical systems are mature technologies that can be used to handle certain kinds of queries, but they are not always well suited to many problems, particularly when there is a need for real-time insights.
Jan. 17, 2017 06:45 PM EST Reads: 6,209
Providing secure, mobile access to sensitive data sets is a critical element in realizing the full potential of cloud computing. However, large data caches remain inaccessible to edge devices for reasons of security, size, format or limited viewing capabilities. Medical imaging, computer aided design and seismic interpretation are just a few examples of industries facing this challenge. Rather than fighting for incremental gains by pulling these datasets to edge devices, we need to embrace the i...
Jan. 17, 2017 05:15 PM EST Reads: 3,561
Web Real-Time Communication APIs have quickly revolutionized what browsers are capable of. In addition to video and audio streams, we can now bi-directionally send arbitrary data over WebRTC's PeerConnection Data Channels. With the advent of Progressive Web Apps and new hardware APIs such as WebBluetooh and WebUSB, we can finally enable users to stitch together the Internet of Things directly from their browsers while communicating privately and securely in a decentralized way.
Jan. 17, 2017 04:45 PM EST Reads: 3,049
Fifty billion connected devices and still no winning protocols standards. HTTP, WebSockets, MQTT, and CoAP seem to be leading in the IoT protocol race at the moment but many more protocols are getting introduced on a regular basis. Each protocol has its pros and cons depending on the nature of the communications. Does there really need to be only one protocol to rule them all? Of course not. In his session at @ThingsExpo, Chris Matthieu, co-founder and CTO of Octoblu, walked through how Octob...
Jan. 17, 2017 04:30 PM EST Reads: 2,904
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, discussed 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.
Jan. 17, 2017 04:15 PM EST Reads: 1,978
SYS-CON Events announced today that Catchpoint, a leading digital experience intelligence company, has been named “Silver Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Catchpoint Systems is a leading Digital Performance Analytics company that provides unparalleled insight into your customer-critical services to help you consistently deliver an amazing customer experience. Designed for digital business, C...
Jan. 17, 2017 02:30 PM EST Reads: 1,741
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo 2016 in New York. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place June 6-8, 2017, at the Javits Center in New York City, New York, is co-located with 20th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry p...
Jan. 17, 2017 02:15 PM EST Reads: 3,636
In his General Session at 17th Cloud Expo, Bruce Swann, Senior Product Marketing Manager for Adobe Campaign, explored the key ingredients of cross-channel marketing in a digital world. Learn how the Adobe Marketing Cloud can help marketers embrace opportunities for personalized, relevant and real-time customer engagement across offline (direct mail, point of sale, call center) and digital (email, website, SMS, mobile apps, social networks, connected objects).
Jan. 17, 2017 02:00 PM EST Reads: 5,378
Things are changing so quickly in IoT that it would take a wizard to predict which ecosystem will gain the most traction. In order for IoT to reach its potential, smart devices must be able to work together. Today, there are a slew of interoperability standards being promoted by big names to make this happen: HomeKit, Brillo and Alljoyn. In his session at @ThingsExpo, Adam Justice, vice president and general manager of Grid Connect, will review what happens when smart devices don’t work togethe...
Jan. 17, 2017 01:45 PM EST Reads: 267
"Tintri was started in 2008 with the express purpose of building a storage appliance that is ideal for virtualized environments. We support a lot of different hypervisor platforms from VMware to OpenStack to Hyper-V," explained Dan Florea, Director of Product Management at Tintri, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jan. 17, 2017 12:45 PM EST Reads: 4,473
"There's a growing demand from users for things to be faster. When you think about all the transactions or interactions users will have with your product and everything that is between those transactions and interactions - what drives us at Catchpoint Systems is the idea to measure that and to analyze it," explained Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York Ci...
Jan. 17, 2017 12:45 PM EST Reads: 5,554
The 20th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held June 6-8, 2017, at the Javits Center in New York City, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Containers, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal ...
Jan. 17, 2017 12:45 PM EST Reads: 5,062
SYS-CON Events announced today that Super Micro Computer, Inc., a global leader in Embedded and IoT solutions, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 7-9, 2017, at the Javits Center in New York City, NY. Supermicro (NASDAQ: SMCI), the leading innovator in high-performance, high-efficiency server technology, is a premier provider of advanced server Building Block Solutions® for Data Center, Cloud Computing, Enterprise IT, Hadoop/Big Data, HPC and E...
Jan. 17, 2017 11:45 AM EST Reads: 5,717
SYS-CON Events announced today that Linux Academy, the foremost online Linux and cloud training platform and community, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Linux Academy was founded on the belief that providing high-quality, in-depth training should be available at an affordable price. Industry leaders in quality training, provided services, and student certification passes, its goal is to c...
Jan. 17, 2017 11:45 AM EST Reads: 1,912
20th Cloud Expo, taking place June 6-8, 2017, at the Javits Center in New York City, NY, 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.
Jan. 17, 2017 11:45 AM EST Reads: 4,195
In the next five to ten years, millions, if not billions of things will become smarter. This smartness goes beyond connected things in our homes like the fridge, thermostat and fancy lighting, and into heavily regulated industries including aerospace, pharmaceutical/medical devices and energy. “Smartness” will embed itself within individual products that are part of our daily lives. We will engage with smart products - learning from them, informing them, and communicating with them. Smart produc...
Jan. 17, 2017 10:30 AM EST Reads: 1,654