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Published: Wed, 26 Jul 2017 17:48:45 -0700

Last Build Date: Wed, 26 Jul 2017 17:48:45 -0700

 



13% off Zeiss Pre-Moistened Lens Cleaning Wipes - Deal Alert

Wed, 26 Jul 2017 06:45:00 -0700

Zeiss provides an effective way to clean and preserve valuable optics. Whether used with camera lenses, eyeglasses, sunglasses, telescopes, or spotting scopes, these non-abrasive pre-moistened wipes are safe and effective. These ammonia-free wipes are appropriate for anti-reflective coatings and may also be used to clean laptop, GPS, tablet, or cell phone screens without leaving streaks. Designed for a single use, these wipes come in individual disposable packets.  The wipes are highly rated on Amazon, where it currently averages 4.7 out of 5 stars (read reviews). Its typical list price of $29.99 has been reduced 13% to $25.99 for a pack of 400. See the discounted Lens Cleaning Wipes now on Amazon.

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$50 off iRobot Roomba 690 Wi-Fi Alexa Compatible Robotic Vacuum - Deal Alert

Wed, 26 Jul 2017 06:43:00 -0700


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Serverless computing with AWS Lambda

Tue, 25 Jul 2017 10:26:00 -0700

Serverless computing may be the hottest thing in cloud computing today, but what, exactly, is it? In this two-part article you'll get started with serverless computing--from what it is, to why it's considered disruptive to traditional cloud computing, and how you might find yourself using it in Java-based programming. Following the overview, you'll get a tutorial introduction to AWS Lambda, which is considered by many the premiere Java-based solution for serverless computing today. In Part 1, you'll use AWS Lambda to build your first serverless function in Java. In Part 2, you'll integrate your Lambda functions with DynamoDB, then use the AWS SDK to invoke Lambda functions in a Java application.

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61% off Anker Keyboard Case for iPad Air 2 with 6-Month Battery - Deal Alert

Tue, 25 Jul 2017 06:42:00 -0700

Enjoy more comfortable, efficient typing on your iPad and keep it protected as well with this smart folio keyboard case. Opening or closing the cover triggers your iPad's sleep or wake modes, and the keyboard connects automatically when needed via Bluetooth. With the one of the highest capacity battery of any iPad keyboard case, it lasts half a year between charges. The typical list price of $69.99 has been reduced 61% to just $27. See this deal on Amazon.

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What is Node? The JavaScript runtime explained

Mon, 24 Jul 2017 11:00:00 -0700

Scalability, latency, and throughput are key performance indicators for web servers. Keeping the latency low and the throughput high while scaling up and out is not easy. Node is a JavaScript runtime environment that achieves low latency and high throughput by taking a “non-blocking” approach to serving requests. In other words, Node wastes no time or resources on waiting for I/O requests to return.

Let me explain…

In the traditional approach to creating web servers, for each incoming request or connection the server spawns a new thread of execution or even forks a new process to handle the request and send a response. Conceptually, this makes perfect sense, but in practice it incurs a great deal of overhead.

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70% Anker Quick Charge 3.0 63W 5-Port USB Wall Charger - Deal Alert

Mon, 24 Jul 2017 06:33:00 -0700

This premium wall-charger from Anker features 5 ports that pump out 63W of power — enough for the whole family to simultaneously charge multiple devices at the highest speed possible. Right now it’s discounted 70% to just $27 on Amazon, where it averages 4.5 out of 5 stars from over 500 customers. Right now when you buy this item you’ll also activate a 10% discount on other select Anker products including their power bank and bluetooth speaker. See this deal on Amazon.

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43% off Pecham Vertical Stand for PS4 with Cooling Fan and Dual Controller Charging - Deal Alert

Mon, 24 Jul 2017 06:03:00 -0700

Keep your PS4 or PS4 Slim compact, organized and functioning properly with this vertical stand from Pecham. It features an integrated cooling fan, dual controller changing and a USB hub for powering & charging your phone or other devices as needed. Pecham's stand currently averages 4.6 out of 5 stars from over 185 people on Amazon (82% rate the full 5 stars: read reviews here), where its list price of $29.99 has been reduced 43% to just $16.99. See this deal now on Amazon

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Review: Google Cloud Spanner takes SQL to NoSQL scale

Mon, 24 Jul 2017 03:00:00 -0700

Scaling a relational database isn’t easy. Scaling a relational database out to multiple replicas and regions over a network while maintaining strong consistency, without sacrificing performance, is really hard.

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(Insider Story)


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Web services in Java SE, Part 1

Fri, 21 Jul 2017 11:53:00 -0700

Java Standard Edition (SE) 6 included support for Web services. This post begins a four-part series on Web services in Java SE by explaining what Web services are and overviewing Java SE's support for them. Future posts will use this support to build SOAP-based and RESTful-based Web services, and will also cover advanced Web service topics.

What are web services?

Wikipedia defines Web service as "a software system designed to support interoperable machine-to-machine interaction over a network." A more detailed definition can be obtained by first defining this term's parts:

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Full-stack software for cutting-edge science

Thu, 20 Jul 2017 10:59:00 -0700

Have you ever wondered about the software used in big science facilities? A professional science facility brings together incredibly sophisticated machinery with equally complex software, which is used to do things like drive motors, control robots, and position and run experimental detectors. We also use software to process and store the terrabytes of data created by daily science experiments.

In this article you'll get an inside look at the software infrastructure used at Diamond Light Source (Diamond), which is the UK's national synchrotron. I'll take you through the process of setting up a new experiment, running it, and storing the data for analysis, then I'll introduce each component of Diamond's Java- and Python-based stack. I think you'll find it interesting, and possibly learn about technologies that could be useful to your business. I am excited to show you how science labs are using familiar technologies in new ways.

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21 rules for faster SQL queries

Thu, 20 Jul 2017 03:00:00 -0700

Everyone wants faster database queries, and both SQL developers and DBAs can turn to many time-tested methods to achieve that goal. Unfortunately, no single method is foolproof or ironclad. But even if there is no right answer to tuning every query, there are plenty of proven do’s and don’ts to help light the way. While some are RDBMS-specific, most of these tips apply to any relational database.

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(Insider Story)


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Survey says Python is tops with developers

Thu, 20 Jul 2017 03:00:00 -0700

Python, which was already surging in popularity among developers, has received another endorsement, getting the nod as the most popular tool in IT service provider Packt’s just-released developer survey.

The language is used by nearly 20 percent of respondents, giving it the top spot. The report echoes Python’s high rankings in language popularity indexes from Tiobe, PyPL, and RedMonk, which all have the language finishing in their recent top five rankings.

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Get $100 off Amazon Echo When You Buy 2 Right Now - Deal Alert

Wed, 19 Jul 2017 06:43:00 -0700

Put 2 Echo devices in your cart and Amazon will credit you back $100 right now, effectively pricing each one at $129.99 vs. the typical $179.99 list price. But you'll have to use a special code at checkout, to activate the discount: ECHO2PACK. Amazon Echo is a hands-free speaker you control with your voice. Echo connects to the Alexa Voice Service to play music, provide information, news, sports scores, weather, and more—instantly. All you have to do is ask. Echo has seven microphones and beam forming technology so it can hear you from across the room—even while music is playing. Echo is also an expertly tuned speaker that can fill any room with 360° immersive sound. When you want to use Echo, just say the wake word “Alexa” and Echo responds instantly. If you have more than one Echo or Echo Dot, Alexa responds intelligently from the Echo you're closest to with ESP (Echo Spatial Perception), so it makes a lot of sense to pick up 2 right now with this discount.  See the Amazon Echo on Amazon.

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40% off Inateck USB 3.0 to IDE/SATA Hard Drive Adapter - Deal Alert

Tue, 18 Jul 2017 06:39:00 -0700

This USB 3.0 adapter from Inateck can interface with up to three drives simultaneously. It is compatible with 2.5"/3.5" IDE/SATA hard drives and 5.25" IDE/SATA CD/DVD drives, and features a one-touch backup function. Use it to read an old internal drive from a crashed computer, or to use an internal drive similar to an external backup drive. You might find a lot of uses for this one. The typical list price of $47.99 has been reduced on Amazon 40% right now to $28.99. See this deal on Amazon.

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19% off TaoTronics LED Dimmable Touch Control Desk Lamp with USB Charging - Deal Alert

Tue, 18 Jul 2017 06:26:00 -0700

This desk lamp from TaoTronics features a sleek and minimalistic design with no buttons to speak of, thanks to its creative touch sensitive panel, for control over 5 brightness settings and another 5 color temperature settings (25 light combinations). Also features a USB port equipped with the iSmart technology for safer and faster charging. The LED reflects the light sideways and produces a strain-free light beam that doesn’t harm your eyes. The light averages 4.8 out of 5 stars from over 675 reviewers on Amazon (90% rate a full 5 stars: see reviews), where its typical list price of $36.99 has been reduced 19% to $29.99. See this deal on Amazon.

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Go language soars to new heights in popularity

Mon, 17 Jul 2017 13:06:00 -0700

Go, Google’s open source, concurrency-friendly programming language, has soared to new heights with developers, cracking the top 10 in the Tiobe index of language popularity for the first time.

With an all-time high rating of 2.363 percent, Go ranks as the 10th most popular programming language in this month’s index, ahead of languages such as Perl, Swift, Ruby, and Visual Basic. The Tiobe Programming Community index assesses language popularity using a formula based on frequency of searches for the languages in popular search engines such as Google, Bing, Baidu, and Wikipedia.

Tiobe called Go’s latest rise an important landmark and pondered what was next. “Is Go really able to join the big stars in the programming language world and leave languages such as JavaScript and Python behind? We will see.” The language was ranked in 55th place in the index a year ago. Go’s previous high score was a 2.325 percent rating in January, when it placed 13th.

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23% off HDMI Cloner Box for Gaming or HD Video Stream Capture, No PC needed - Deal Alert

Mon, 17 Jul 2017 06:40:00 -0700

Here's a device any gamer or video enthusiast may want to have on hand. Connect a game console, DVD, or any video source to this gadget via its HDMI input, and with the push of a button it captures and saves the video stream to any attached USB flash drive, with no PC required. Advanced hardware H.264 encoding captures your live gameplay or video playback in 1080p Full HD, while keeping the file size low and capturing speeds high. Averaging 4 out of 5 stars on Amazon from over 170 customers (read reviews), the gadget's $129.99 list price has been reduced 23% to $99.99. With the unit you'll get a free 16gb USB stick to get you started (enough for several hours of video). See the discounted cloner box now on Amazon.

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47% off Mpow Fully Submersible Waterproof Phone Dry Bag, 2-Pack - Deal Alert

Mon, 17 Jul 2017 06:39:00 -0700

For extreme conditions, this phone pouch features a simple snap and lock design that easily keeps out water, snow, dust, sand, and dirt, without hindering use of touch-screen or camera. It fits all large smartphones up to 6 inches, as well as your cash, documents, credit cards, or any similar sized items you need safe from the elements while outdoors. The 2-pack's typical list price of $16.99 has been reduced 47% right now to $8.99. See this deal on Amazon.

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37% off Fitfort 4K WiFi Ultra HD Waterproof Sport Camera - Deal Alert

Fri, 14 Jul 2017 06:54:00 -0700

This sport camera is a budget-friendly alternative to GoPro. It averages 4.5 out of 5 stars from over 230 reviewers on Amazon, where Its list price of $100 is currently discounted 37% to just $64. Designed to be used for biking, hiking, diving, swimming, surfing, or anywhere else you could use a rugged, waterproof camera. The camera provides 4K/25FPS, 2.7K/30FPS, 1080P/60FPS, 1080P/30FPS and 720P/120FPS video resolution. Comes with a wireless remote, and 2 rechargeable batteries that provide up to 90 minutes of continuous filming each. See this deal on Amazon.

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48% off Inateck 2.5 Inch USB 3.0 Hard Drive Enclosure External Case - Deal Alert

Thu, 13 Jul 2017 06:27:00 -0700

This 3 port USB 3.0 hub converts any 9.5mm & 7mm 2.5-Inch SATA HDD/SSD into an external hard drive for ultimate mobility and convenience. Setup is tool free and easy to install and disassemble.  A built-in foam pad protects the hard disk. This device features automatic sleep and spin-down, and goes into sleep mode automatically after 10 minutes in idle state. Currently receiving 4.5 out of 5 stars on Amazon (read reviews), it's discounted by 48% down to just $21.99,  See it on Amazon.

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66% off Anker SoundCore Bluetooth Speaker with 24-Hour Playtime & Built-in Mic - Deal Alert

Thu, 13 Jul 2017 06:18:00 -0700

Anker's highly rated SoundCore Bluetooth speaker's typical list price of $79.99 has been discounted 66% today to just $26.99 on Amazon, where it averages 4.6 out of 5 stars from over 7,500 reviewers (76% rate the full 5 stars: read reviews here). It features rich sound, a generous 24 hours of play time (500 continuous songs without needing a charge), Bluetooth 4.0 66-foot wireless range and a worry-free 18 month warranty. This deal is good for today only (7/13), so see it now on Amazon.

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Apache Spark 2.2 gets streaming, R language boosts

Thu, 13 Jul 2017 03:00:00 -0700

With version 2.2 of Apache Spark, a long-awaited feature for the multipurpose in-memory data processing framework is now available for production use.

Structured Streaming, as that feature is called, allows Spark to process streams of data in ways that are native to Spark's batch-based data-handling metaphors. It's part of Spark's long-term push to become, if not all things to all people in data science, then at least the best thing for most of them.

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67% off BioShock: The Collection for PlayStation 4 - Deal Alert

Wed, 12 Jul 2017 07:24:00 -0700

Return to the cities of Rapture and Columbia and experience the award-winning BioShock franchise like never before. BioShock: The Collection retells the epic journeys of the BioShock universe beautifully remastered in 1080p. BioShock: The Collection contains all single-player content from BioShock, BioShock 2, and BioShock Infinite, all single-player add-on content, the 'Columbia’s Finest' pack, and Director’s Commentary: Imagining BioShock, featuring Ken Levine and Shawn Robertson. The list price for the PlayStation 4 version has been reduced 67% to just $19.99. XBox One and PC versions have been discounted as well. See this deal on Amazon.

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37% off DYMO LabelWriter Twin Turbo Label Printer and Mailing Scale - Deal Alert

Wed, 12 Jul 2017 07:14:00 -0700

This label maker from Dymo is an all-in-one kit with everything you need to address, weigh and stamp your mail. Thermal printing technology is silent and never needs ink, toner, or ribbons. 300 dpi resolution 55 labels per minute print speed. Includes label printer, scale, 1 roll of 200 DYMO Stamps postage labels and 1 roll of 130 DYMO address labels, as well as a 2-year limited manufacturer warranty. This desktop mailing solution averages 4 out of 5 stars from over 720 people on Amazon (read reviews), there the typical list price has been reduced 37% from $190 down to $119.59. See this deal now on Amazon.

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How to get started with Kubernetes

Wed, 12 Jul 2017 03:00:00 -0700

With every innovation comes new complications. Containers made it possible to package and run applications in a convenient, portable form factor, but managing containers at scale is challenging to say the least.

Kubernetes, the product of work done internally at Google to solve that problem, provides a single framework for managing how containers are run across a whole cluster. The services it provides are generally lumped together under the catch-all term “orchestration,” but that covers a lot of territory: scheduling containers, service discovery between containers, load balancing across systems, rolling updates/rollbacks, high availability, and more.

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8 keys to DynamoDB success

Wed, 12 Jul 2017 03:00:00 -0700

DynamoDB, a fully-managed NoSQL database, is an impressive piece of technology, and it’s amazing that AWS has opened it for the entire world to use. What took millions of dollars in R&D to build – a product that services millions of queries per second with low latency – can be effectively rented for dollars per hours by anyone with a credit card. For those who need a key-value store that can store massive amounts of data reliably, there aren’t many better options.

While DynamoDB generally works quite well, it’s inevitable that we all run into issues. A few months ago at Segment, my colleagues wrote a detailed blog post about our own DynamoDB issues. Mainly, we were hitting our rate limits due to problems with our partitioning setup – a single partition was limiting throughput for an entire table. Solving the problem took a superhuman effort, but it was worth it (to the tune of $300K annually).

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43% off Caller-ID Call Blocker For Robo-calls, Telemarketers and Other Nuisances - Deal Alert

Mon, 10 Jul 2017 09:32:00 -0700

Just hit the big red "block now" button and say goodbye to robocalls, telemarketer calls, solicitor calls, elections calls, junk faxes or anyone else you'd prefer not to hear from. This small and discreet gadget can also block international and private numbers, as well as full area codes. It has a 1,000 number/area code memory with 200 numbers pre-programmed. The popular gadget averages 4.5 out of 5 stars from over 3,600 people on Amazon (73% rate 5 stars -- read recent reviews here), where its original list price is reduced 43% to $79.99. See the discounted 1,200 number call-blocker on Amazon.

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48% off Anker 15W Dual USB Solar Charger - Deal Alert

Mon, 10 Jul 2017 06:47:00 -0700

This solar charger from Anker delivers the fastest possible charge up to 2.1 amps under direct sunlight. 15 watt SunPower solar array is provides enough power to charge two devices simultaneously. Industrial-strength PET polymer faced solar panels are sewn into a rugged polyester canvas for weather-resistant outdoor durability. Clip it to your backpack, or attach to your tent or a tree. The charger currently averages 4.3 out of 5 stars from over 340 people on Amazon (read reviews), where its typical list price of $79.99 has been reduced 48% to $41.99. See this deal on Amazon.

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28% off SanDisk Ultra CZ48 32GB USB 3.0 100MB/s Flash Drive - Deal Alert

Fri, 07 Jul 2017 06:25:00 -0700

The SanDisk Ultra USB 3.0 Flash Drive takes the wait out of moving, sharing or backing up big files. Transfer a full-length movie in seconds with speeds up to 100MB/s. The included SanDisk SecureAccess software provides 128-bit AES encryption and password protection to keep your private files private. SanDisk's Ultra CZ48 flash drive with 32GB capacity is listed on Amazon for 28% off, so you can pick one up for a little over $14.  See this deal on Amazon.

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Get 72% off NordVPN Virtual Private Network Service For a Limited Time - Deal Alert

Thu, 06 Jul 2017 14:05:00 -0700

NordVPN gives you a private and fast path through the public Internet. All of your data is protected every step of the way using revolutionary 2048-bit SSL encryption even a supercomputer can’t crack. Access Hulu, Netflix, BBC, ITV, Sky, RaiTV and much more from anywhere in the world. Unmetered access for 6 simultaneous devices. You're sure to find dozens of good uses for a VPN. Take advantage of the current 72% off deal that makes all of this available to you for just $3.29/month (access deal here). This is a special deal available for a limited time.

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