Welcome!

Containers Expo Blog Authors: Elizabeth White, John Rauser, Liz McMillan, William Schmarzo, Automic Blog

Related Topics: Containers Expo Blog

Containers Expo Blog: Blog Feed Post

Ways to Improve Replication Performance and Reliability

The Slow Growth of Speedy Communications

THE SLOW GROWTH OF SPEEDY COMMUNICATIONS

It used to be that if you were replicating database or file storage to a remote location you had few options if your connection was not the best. You could use rate shaping to give more of the pipe over to your replication, increase TCP window sizes, turn on jumbo frames… All relatively primitive stuff. image

As time went on, the speed and reliability of data connections grew, which increased our usage of such connections to replicate data, which decreased the reliability of the connections because we were pouring  more data through pipes every day. So we grew the pipes, but latency and packet loss were beyond our control.

And then, as inevitably happens, we outgrew those larger connections too. And the cycle commenced. Replicating anything over a WAN connection is a lot of data to transfer, no matter how you slice it, and if the analysts are to be believed, the amount of data we need to transfer just continues to grow, making the problem ever more complex. And now there is increasing pressure to secure that data in-flight over the WAN, not an unreasonable request, but definitely one that is technologically complex.

But there are ways to improve replication performance and reliability without continuing to increase your pipe and resend failed data. I thought we could chat about the architectural styles, just so you have a reference for what you could be doing. Up-front, F5 participates in this market with our WOM product, and thus, the “device-based multi-function” item below is us. I don’t think I overstate the case, but it is best if you know a writers’ possible biases up-front.

Picture Courtesy of WeLoveTeaching.com


OPTIONS! WHAT ARE THE OPTIONS!?

1. Server-based acceleration and/or encryption. A process on the server does TCP optimizations and perhaps data compression on the way off the server. The strength of this solution is that it is cheap, often bundled with database software and backup software respectively. The weakness is that the server it operates on can see significant performance degradation as this process takes up memory and CPU. The other leading negative is that the options for optimization are generally limited in an on-server software solution. A similar process is available for encryption, but it really tortures your CPU, taking a ton of processing power to encrypt a live stream.

2. Speedier server based encryption. There are add-on cards available to offload encryption in this scenario, and they’re well worth the investment if you are encrypting data on the server. Seriously. Check your CPU usage if you’re in this crowd, and consider an acceleration card for encryption if it’s high.

3. Device based encryption. A network device encrypts your data on the way out of the building. This is a solid answer to the encryption problem, but still leaves your data unaccelerated. If your problem is simply encryption, and your communications are reliable and your connection is big enough, this might just be the solution for you.

4. Device based acceleration. These devices allow you to accelerate your communications in a variety of ways, depending upon vendor. TCP acceleration, caching, deduplication, local remote storage… They can give you a great speed increase, again, depending upon your vendor and the product. While not doing much to secure your communications, these can increase the performance of your replication and decrease the amount of traffic flowing through the connection.

5. Device based rate shaping and QoS. Devices in this category allow you to partition your outgoing (and incoming) connection to give preference to varying types of applications within limits – setting minimum and maximum amounts of pipe a given protocol can use, or giving heavier precedence to one protocol over another, for example.

6. Device based multi-function. These are the kings of the roost. They offload encryption and acceleration from your servers, they encrypt the data heading out, accelerate the TCP connection, rate shape the data flowing through them to your specifications, compress, deduplicate, and in very rare products, can cook you breakfast. Okay, that last part may be a bit of exaggeration, but some products do run hot, so you never know. These products have one thing over server based solutions in that they (and all device-based products) work on all data flowing through your connection – assuming you configure them that way – while server-based solutions work only on the data that particular server is passing through it.

7. Storage-based Acceleration. This category is growing in visibility at the moment, it copies from one storage device to another, often optimizing the throughput. Not generally as effective as dedicated solutions, and not generally providing database replicas (though some do), this solution set is an option for those that have a lot of data and are copying it from like to like storage systems. In many cases these products benefit from the above solutions, as they do not 100% overlap in functionality.


CAVEATS! ALWAYS CAVEATS!

The quality of acceleration and security you get does of course vary, and as I hinted at above, which is best for your environment is definitely a question that you are in a far better position to answer than I am. Generally, I lean away from server-based solutions because they only address a piece of the problem and they do so at the cost of processing power on your servers – the very things you’re trying to make appear faster with acceleration.

These solutions always cost money, but the amount that they cost might well be recouped in uptime and deferred costs of upgrading your connection in a short amount of time. Again, this varies widely based upon your environment, the completeness of the product in question, and growth patterns, but it is definitely worth checking out. Of course if your replication is failing because of the quality or size of your connection, you will likely gain a large and immediate benefit from any of the acceleration solutions.


Follow me on Twitter icon_facebook

AddThis Feed Button Bookmark and Share

Related Articles and Blogs:

Read the original blog entry...

More Stories By Don MacVittie

Don MacVittie is founder of Ingrained Technology, A technical advocacy and software development consultancy. He has experience in application development, architecture, infrastructure, technical writing,DevOps, and IT management. MacVittie holds a B.S. in Computer Science from Northern Michigan University, and an M.S. in Computer Science from Nova Southeastern University.

@ThingsExpo Stories
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 ...
"There's plenty of bandwidth out there but it's never in the right place. So what Cedexis does is uses data to work out the best pathways to get data from the origin to the person who wants to get it," explained Simon Jones, Evangelist and Head of Marketing at Cedexis, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
In his session at 21st Cloud Expo, Carl J. Levine, Senior Technical Evangelist for NS1, will objectively discuss how DNS is used to solve Digital Transformation challenges in large SaaS applications, CDNs, AdTech platforms, and other demanding use cases. Carl J. Levine is the Senior Technical Evangelist for NS1. A veteran of the Internet Infrastructure space, he has over a decade of experience with startups, networking protocols and Internet infrastructure, combined with the unique ability to it...
SYS-CON Events announced today that CrowdReviews.com has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5–7, 2018, at the Javits Center in New York City, NY. CrowdReviews.com is a transparent online platform for determining which products and services are the best based on the opinion of the crowd. The crowd consists of Internet users that have experienced products and services first-hand and have an interest in letting other potential buye...
"MobiDev is a software development company and we do complex, custom software development for everybody from entrepreneurs to large enterprises," explained Alan Winters, U.S. Head of Business Development at MobiDev, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
WebRTC is great technology to build your own communication tools. It will be even more exciting experience it with advanced devices, such as a 360 Camera, 360 microphone, and a depth sensor camera. In his session at @ThingsExpo, Masashi Ganeko, a manager at INFOCOM Corporation, introduced two experimental projects from his team and what they learned from them. "Shotoku Tamago" uses the robot audition software HARK to track speakers in 360 video of a remote party. "Virtual Teleport" uses a multip...
Gemini is Yahoo’s native and search advertising platform. To ensure the quality of a complex distributed system that spans multiple products and components and across various desktop websites and mobile app and web experiences – both Yahoo owned and operated and third-party syndication (supply), with complex interaction with more than a billion users and numerous advertisers globally (demand) – it becomes imperative to automate a set of end-to-end tests 24x7 to detect bugs and regression. In th...
"Space Monkey by Vivent Smart Home is a product that is a distributed cloud-based edge storage network. Vivent Smart Home, our parent company, is a smart home provider that places a lot of hard drives across homes in North America," explained JT Olds, Director of Engineering, and Brandon Crowfeather, Product Manager, at Vivint Smart Home, in this SYS-CON.tv interview at @ThingsExpo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"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...
"Cloud Academy is an enterprise training platform for the cloud, specifically public clouds. We offer guided learning experiences on AWS, Azure, Google Cloud and all the surrounding methodologies and technologies that you need to know and your teams need to know in order to leverage the full benefits of the cloud," explained Alex Brower, VP of Marketing at Cloud Academy, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clar...
It is of utmost importance for the future success of WebRTC to ensure that interoperability is operational between web browsers and any WebRTC-compliant client. To be guaranteed as operational and effective, interoperability must be tested extensively by establishing WebRTC data and media connections between different web browsers running on different devices and operating systems. In his session at WebRTC Summit at @ThingsExpo, Dr. Alex Gouaillard, CEO and Founder of CoSMo Software, presented ...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, whic...
SYS-CON Events announced today that Evatronix will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Evatronix SA offers comprehensive solutions in the design and implementation of electronic systems, in CAD / CAM deployment, and also is a designer and manufacturer of advanced 3D scanners for professional applications.
Leading companies, from the Global Fortune 500 to the smallest companies, are adopting hybrid cloud as the path to business advantage. Hybrid cloud depends on cloud services and on-premises infrastructure working in unison. Successful implementations require new levels of data mobility, enabled by an automated and seamless flow across on-premises and cloud resources. In his general session at 21st Cloud Expo, Greg Tevis, an IBM Storage Software Technical Strategist and Customer Solution Architec...
To get the most out of their data, successful companies are not focusing on queries and data lakes, they are actively integrating analytics into their operations with a data-first application development approach. Real-time adjustments to improve revenues, reduce costs, or mitigate risk rely on applications that minimize latency on a variety of data sources. In his session at @BigDataExpo, Jack Norris, Senior Vice President, Data and Applications at MapR Technologies, reviewed best practices to ...
An increasing number of companies are creating products that combine data with analytical capabilities. Running interactive queries on Big Data requires complex architectures to store and query data effectively, typically involving data streams, an choosing efficient file format/database and multiple independent systems that are tied together through custom-engineered pipelines. In his session at @BigDataExpo at @ThingsExpo, Tomer Levi, a senior software engineer at Intel’s Advanced Analytics gr...
When talking IoT we often focus on the devices, the sensors, the hardware itself. The new smart appliances, the new smart or self-driving cars (which are amalgamations of many ‘things’). When we are looking at the world of IoT, we should take a step back, look at the big picture. What value are these devices providing? IoT is not about the devices, it’s about the data consumed and generated. The devices are tools, mechanisms, conduits. In his session at Internet of Things at Cloud Expo | DXWor...
Everything run by electricity will eventually be connected to the Internet. Get ahead of the Internet of Things revolution. In his session at @ThingsExpo, Akvelon expert and IoT industry leader Sergey Grebnov provided an educational dive into the world of managing your home, workplace and all the devices they contain with the power of machine-based AI and intelligent Bot services for a completely streamlined experience.
SYS-CON Events announced today that Synametrics Technologies will exhibit at SYS-CON's 22nd International Cloud Expo®, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Synametrics Technologies is a privately held company based in Plainsboro, New Jersey that has been providing solutions for the developer community since 1997. Based on the success of its initial product offerings such as WinSQL, Xeams, SynaMan and Syncrify, Synametrics continues to create and hone inn...