Apple Releases Second iOS 10.2 Beta for Public Beta Testersb

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Apple today seeded the second beta of an upcoming iOS 10.2 update to public beta testers for testing purposes, just one over one week after releasing the first iOS 10.2 public beta, and one day after providing the second iOS 10.2 beta to developers.

Beta testers who have signed up for Apple’s beta testing program will receive the iOS 10.2 beta update over-the-air after installing the proper certificate on their iOS device.

Those who want to be a part of Apple’s beta testing program can sign up to participate through the beta testing website, which gives users access to both iOS and macOS Sierrabetas. Betas are not stable and include many bugs, so they should be installed on a secondary device.
iOS 10.2, as a major 10.x update, includes several new features to enhance the iOS 10 operating system. New emoji are included, introducing Unicode 9 characters like clown face, drooling face, selfie, face palm, fox face, owl, shark, butterfly, avocado, pancakes, croissant, and more, plus many profession emoji available in both male and female genders.

Apple has also updated the artwork on most existing emoji, adding detail to make them look less cartoonish and more realistic.

In addition to new emoji, the iOS 10.2 update includes new wallpaper, new Music sorting options, a new “Celebrate” Screen Effect,” an option for preserving camera settings, a Videos widget, Single Sign-On support, an SOS feature for quickly calling emergency services, a new TV app to help users discover television content to watch, and more.

 

 

[Source:- macrumors]

Fire up big data processing with Apache Ignite

Fire up big data processing with Apache Ignite

Apache Ignite is an in-memory computing platform that can be inserted seamlessly between a user’s application layer and data layer. Apache Ignite loads data from the existing disk-based storage layer into RAM, improving performance by as much as six orders of magnitude (1 million-fold).

The in-memory data capacity can be easily scaled to handle petabytes of data simply by adding more nodes to the cluster. Further, both ACID transactions and SQL queries are supported. Ignite delivers performance, scale, and comprehensive capabilities far above and beyond what traditional in-memory databases, in-memory data grids, and other in-memory-based point solutions can offer by themselves.

Apache Ignite does not require users to rip and replace their existing databases. It works with RDBMS, NoSQL, and Hadoop data stores. Apache Ignite enables high-performance transactions, real-time streaming, and fast analytics in a single, comprehensive data access and processing layer. It uses a distributed, massively parallel architecture on affordable, commodity hardware to power existing or new applications. Apache Ignite can run on premises, on cloud platforms such as AWS and Microsoft Azure, or in a hybrid environment.

apache ignite architecture

The Apache Ignite unified API supports SQL, C++, .Net, Java, Scala, Groovy, PHP, and Node.js. The unified API connects cloud-scale applications with multiple data stores containing structured, semistructured, and unstructured data. It offers a high-performance data environment that allows companies to process full ACID transactions and generate valuable insights from real-time, interactive, and batch queries.

Users can keep their existing RDBMS in place and deploy Apache Ignite as a layer between it and the application layer. Apache Ignite automatically integrates with Oracle, MySQL, Postgres, DB2, Microsoft SQL Server, and other RDBMSes. The system automatically generates the application domain model based on the schema definition of the underlying database, then loads the data. In-memory databases typically provide only a SQL interface, whereas Ignite supports a wider group of access and processing paradigms in addition to ANSI SQL. Apache Ignite supports key/value stores, SQL access, MapReduce, HPC/MPP processing, streaming/CEP processing, clustering, and Hadoop acceleration in a single integrated in-memory computing platform.

GridGain Systems donated the original code for Apache Ignite to the Apache Software Foundation in the second half of 2014. Apache Ignite was rapidly promoted from an incubating project to a top-level Apache project in 2015. In the second quarter of 2016, Apache Ignite was downloaded nearly 200,000 times. It is used by organizations around the world.

Architecture

Apache Ignite is JVM-based distributed middleware based on a homogeneous cluster topology implementation that does not require separate server and client nodes. All nodes in an Ignite cluster are equal, and they can play any logical role per runtime application requirement.

A service provider interface (SPI) design is at the core of Apache Ignite. The SPI-based design makes every internal component of Ignite fully customizable and pluggable. This enables tremendous configurability of the system, with adaptability to any existing or future server infrastructure.

Apache Ignite also provides direct support for parallelization of distributed computations based on fork-join, MapReduce, or MPP-style processing. Ignite uses distributed parallel computations extensively, and they are fully exposed at the API level for user-defined functionality.

Key features

In-memory data grid. Apache Ignite includes an in-memory data grid that handles distributed in-memory data management, including ACID transactions, failover, advanced load balancing, and extensive SQL support. The Ignite data grid is a distributed, object-based, ACID transactional, in-memory key-value store. In contrast to traditional database management systems, which utilize disk as their primary storage mechanism, Ignite stores data in memory. By utilizing memory rather than disk, Apache Ignite is up to 1 million times faster than traditional databases.

apache ignite data grid

SQL support. Apache Ignite supports free-form ANSI SQL-99 compliant queries with virtually no limitations. Ignite can use any SQL function, aggregation, or grouping, and it supports distributed, noncolocated SQL joins and cross-cache joins. Ignite also supports the concept of field queries to help minimize network and serialization overhead.

In-memory compute grid. Apache Ignite includes a compute grid that enables parallel, in-memory processing of CPU-intensive or other resource-intensive tasks such as traditional HPC, MPP, fork-join, and MapReduce processing. Support is also provided for standard Java ExecutorService asynchronous processing.

apache ignite compute grid

In-memory service grid. The Apache Ignite service grid provides complete control over services deployed on the cluster. Users can control how many service instances should be deployed on each cluster node, ensuring proper deployment and fault tolerance. The service grid guarantees continuous availability of all deployed services in case of node failures. It also supports automatic deployment of multiple instances of a service, of a service as a singleton, and of services on node startup.

In-memory streaming. In-memory stream processing addresses a large family of applications for which traditional processing methods and disk-based storage, such as disk-based databases or file systems, are inadequate. These applications are extending the limits of traditional data processing infrastructures.

apache ignite streaming

Streaming support allows users to query rolling windows of incoming data. This enables users to answer questions such as “What are the 10 most popular products over the last hour?” or “What is the average price in a certain product category for the past 12 hours?”

Another common stream processing use case is pipelining a distributed events workflow. As events are coming into the system at high rates, the processing of events is split into multiple stages, each of which has to be properly routed within a cluster for processing. These customizable event workflows support complex event processing (CEP) applications.

In-memory Hadoop acceleration. The Apache Ignite Accelerator for Hadoop enables fast data processing in existing Hadoop environments via the tools and technology an organization is already using.

apache ignite hadoop rev

Ignite in-memory Hadoop acceleration is based on the first dual-mode, high-performance in-memory file system that is 100 percent compatible with Hadoop HDFS and an in-memory optimized MapReduce implementation. Delivering up to 100 times faster performance, in-memory HDFS and in-memory MapReduce provide easy-to-use extensions to disk-based HDFS and traditional MapReduce. This plug-and-play feature requires minimal to no integration. It works with any open source or commercial version of Hadoop 1.x or Hadoop 2.x, including Cloudera, Hortonworks, MapR, Apache, Intel, and AWS. The result is up to 100-fold faster performance for MapReduce and Hive jobs.

Distributed in-memory file system. A unique feature of Apache Ignite is the Ignite File System (IGFS), which is a file system interface to in-memory data. IGFS delivers similar functionality to Hadoop HDFS. It includes the ability to create a fully functional file system in memory. IGFS is at the core of the Apache Ignite In-Memory Accelerator for Hadoop.

The data from each file is split on separate data blocks and stored in cache. Data in each file can be accessed with a standard Java streaming API. For each part of the file, a developer can calculate an affinity and process the file’s content on corresponding nodes to avoid unnecessary networking.

Unified API. The Apache Ignite unified API supports a wide variety of common protocols for the application layer to access data. Supported protocols include SQL, Java, C++, .Net, PHP, MapReduce, Scala, Groovy, and Node.js. Ignite supports several protocols for client connectivity to Ignite clusters, including Ignite Native Clients, REST/HTTP, SSL/TLS, and Memcached.SQL.

Advanced clustering. Apache Ignite provides one of the most sophisticated clustering technologies on JVMs. Ignite nodes can automatically discover each other, which helps scale the cluster when needed without having to restart the entire cluster. Developers can also take advantage of Ignite’s hybrid cloud support, which allows users to establish connections between private clouds and public clouds such as AWS or Microsoft Azure.

Additional features. Apache Ignite provides high-performance, clusterwide messaging functionality. It allows users to exchange data via publish-subscribe and direct point-to-point communication models.

The distributed events functionality in Ignite allows applications to receive notifications about cache events occurring in a distributed grid environment. Developers can use this functionality to be notified about the execution of remote tasks or any cache data changes within the cluster. Event notifications can be grouped and sent in batches and at timely intervals. Batching notifications help attain high cache performance and low latency.

Ignite allows for most of the data structures from the java.util.concurrent framework to be used in a distributed fashion. For example, you could add to a double-ended queue (java.util.concurrent.BlockingDeque) on one node and poll it from another node. Or you could have a distributed primary key generator, which would guarantee uniqueness on all nodes.

Ignite distributed data structures include support for these standard Java APIs: Concurrent map, distributed queues and sets, AtomicLong, AtomicSequence, AtomicReference, and CountDownLatch.

Key integrations

Apache Spark. Apache Spark is a fast, general-purpose engine for large-scale data processing. Ignite and Spark are complementary in-memory computing solutions. They can be used together in many instances to achieve superior performance and functionality.

Apache Spark and Apache Ignite address somewhat different use cases and rarely compete for the same task. The table below outlines some of the key differences.

Apache Spark doesn’t provide shared storage, so data from HDFS or other disk storage must be loaded into Spark for processing. State can be passed from Spark job to job only by saving the processed data back into external storage. Ignite can share Spark state directly in memory, without storing the state to disk.

One of the main integrations for Ignite and Spark is the Apache Ignite Shared RDD API. Ignite RDDs are essentially wrappers around Ignite caches that can be deployed directly inside of executing Spark jobs. Ignite RDDs can also be used with the cache-aside pattern, where Ignite clusters are deployed separately from Spark, but still in-memory. The data is still accessed using Spark RDD APIs.

Spark supports a fairly rich SQL syntax, but it doesn’t support data indexing, so it must do full scans all the time. Spark queries may take minutes even on moderately small data sets. Ignite supports SQL indexes, resulting in much faster queries, so using Spark with Ignite can accelerate Spark SQL more than 1,000-fold. The result set returned by Ignite Shared RDDs also conforms to the Spark Dataframe API, so it can be further analyzed using standard Spark dataframes. Both Spark and Ignite natively integrate with Apache YARN and Apache Mesos, so it’s easier to use them together.

When working with files instead of RDDs, it’s still possible to share state between Spark jobs and applications using the Ignite In-Memory File System (IGFS). IGFS implements the Hadoop FileSystem API and can be deployed as a native Hadoop file system, exactly like HDFS. Ignite plugs in natively to any Hadoop or Spark environment. IGFS can be used with zero code changes in plug-and-play fashion.

Apache Cassandra. Apache Cassandra can serve as a high-performance solution for structured queries. But the data in Cassandra should be modeled such that each predefined query results in one row retrieval. Thus, you must know what queries will be required before modeling the data.

[Source:- Infowrold]

How to retouch portrait photos with Paint.NET

Retouching portrait photos is often referred to as ‘Photoshopping’, but you don’t need to splash out on Adobe’s premium software to make your selfies look stunning.

Paint.NET is a completely free photo editor that’s just as capable as many full-price programs. It was originally created as an upgrade/replacement for Microsoft Paint, but has evolved from those humble beginnings into a powerful tool for editing images and creating your own artwork from scratch.

Paint.NET’s clone stamp tool is a simple way to disguise blemishes in portrait photos

Editing out blemishes is easy with the stamp tool – hold Ctrl and click a nearby area to take a sample, then click and drag to ‘paint’ over the flaw. Like all the tools in Paint.NET, the stamp is fully configurable and can be adjusted using the options at the top of the main window. For a natural look, enable antialiasing and reduce the hardness of the brush. When retouching portrait photos you might need to take several samples and to make sure the colours line up with the contours of the face. The clone stamp is also very useful for editing out flyaway hair, or specks left by dust on the camera lens.

 
The Liquify plug-in for Paint.NET lets you smooth and slim down features, or make adjustments to hair and clothing, but use a light touch – excessive use can yield strange and unnatural results

Like Photoshop, Paint.NET supports plug-ins, some of which are specially created for retouching photos. Installing plugins is easy – just download the ZIP archive, then extract the DLL file to Program Files > Paint.net > Effects.

One of the best for photo retouching is Liquify, which you can download from the Paint.NET forums. Just like the Photoshop tool of the same name, it lets you distort images by clicking and dragging, and you can use it to smooth out bumps, slim down noses and tighten jawlines. Keep your changes subtle, and bear in mind that the background will also be distorted by Liquify, so avoid using it near any lines or regular patterns.

 
Paint.NET’s photo-enhancing tools apply flattering filters to give portrait subjects a healthy glow, and the vignette effect draws the eye inwards

Like any photo editor worth its salt, Paint.NET includes a levels editor (under Adjustments), which you can use to adjust the contrast in your image. Tweaking the diagonal line into a gentle S shape will increase contrast and make your picture look more dramatic, but you might find decreasing the contrast yields a more flattering effect.

For a more dramatic change, try the Soften Portrait tool (under Effects > Photo). This softens skintones in your picture and lightens colours to obscure imperfections (a little like deliberately over-exposing a photo). It also adds a flattering warm color cast. The default setting is a bit strong for retouching portrait photos, so tweak the sliders until you’re happy with the result. The Vignette effect (also in the Photo menu) is worth a try too – it adds an Instagram-style retro camera effect that draws attention to the subject.

With so many dedicated functions and filters, plus user-created plugins that replicate the most popular features of premium retouching tools, Paint.NET is an essential program for tweaking everything from selfies to wedding portraits – and it’s completely free.

 

 

[Source:- Techrader]

Alcatel Idol 4S with Windows 10 unboxing, camera samples, and FAQ

Unboxing, camera samples, photo gallery and more on the new Alcatel Idol 4S with Window 10 Mobile

T-Mobile and Alcatel are set to release the Idol 4S next week with Windows 10 Mobile. The phone will retail for $469 on November 10, which is a nice price when you consider the included VR headset that comes in the box.

Before we get to our full review, next week I figured I’d do a quick unboxing and share some initial impressions. Also, I’ll share some camera samples and answer a few questions I know many of you have about this impressive device. Let’s go!

Alcatel Idol 4S with Windows 10 Mobile

CPU Snapdragon 820 | Quad Core CPU @2.15 GHz
Display 5.5-inch FHD AMOLED
Dragontrail 2.5D Glass
180-degree viewing
Memory 64GB ROM
4GB RAM
microSD
Camera 21 MP Rear
8 MP FF
Dedicated camera button
Dual-tone rear flash
LED front flash
Video 4K @ 30FPS
1080P @ 60 FPS
Battery 3,000 mAh
Quick Charge 2.0
420Hrs Standby
15Hrs Talk
Continuum Yes
VR Yes
Windows Hello Yes (Fingerprint)
Audio Dual speakers with Hi-Fi surround sound
Dimensions 153.9 x 75.4 x 6.99 mm
Data 4G LTE
T-Mobile Extended Range LTE
3G/4G Band I, II, IV, V
LTE Bands 1, 2, 3, 4, 5, 7, 12, 20
HD Voice Yes
VoLTE Yes
Wi-Fi 802.11 a/b/g/n/ac
Wi-Fi Calling 1.0
Bluetooth BT 4.1
A2DP, OPP, HFP, AVRCP, PBAP

In the box

  • Alcatel Idol 4S
  • VR headset/case
  • Quick Charge 2.0 charger + USB Type-C cable

Impressions

The Alcatel Idol 4S has surprised me in a good way. I have become accustomed to being underwhelmed by non-Lumia phones in the past, but so far the HP Elite x3 and Idol 4S are bucking those trends.

Here are my quick observations:

  • Performance is outstanding likely due to the Full HD display (fewer pixels), and it does feel slightly faster than the Elite x3 because of that
  • The display is excellent. While the Elite x3 is still better due to the higher resolution and slightly richer AMOLED I cannot complain about the Idol 4S either
  • Button placement is different, but not bad
  • The fingerprint reader is very fast, but the small ridges around it make using it while not looking a little harder than the Elite x3
  • The camera feels very much like the Elite x3 despite having a slight edge on megapixel count. Again, it’s not a terrible camera for daylight/standard shots, but it will struggle in low light or fast-moving objects. On the plus side, that camera button is nifty!
  • The phone has no stability or crashing issues like the Elite x3 had during its early release stage (now fixed). It’s very reliable with no obvious bugs or flaws either in hardware design or software execution
  • Being glass and metal it will pick up fingerprint quickly; I would consider a case if you a prone to dropping phones
  • The VR experience is OK. I’m not a huge VR fan, and the lower resolution display is noticeable when using the headset compared to the Galaxy S7. I consider the VR experience a bonus add-on, not the core reason to buy this phone so whatever. At the end of the day, phone VR is still just phone VR.
  • You cannot remove the T-Mobile app for whatever reason
  • The dual front firing speakers are tremendous. While the Elite x3 also has the same setup those are tuned high for speaker phone and lack bass. The Idol 4S are much better for media and music and sound fantastic

One day in with the Idol 4S and I’m liking it a lot with little to no complaints. If you are on T-Mobile and are looking for something high end with Windows 10 Mobile, this is a good bet.

 

 

[Source:- Windowscentral]