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Here’s All You Need to Know about Apache Spark 2.4

Posted on January 28, 2019January 28, 2019 by Dexlab

Here’s All You Need to Know about Apache Spark 2.4

Apache Spark 2.4 has joined the data bandwagon recently – and it is incredible. It brings experimental support for Scala 2.12. Join us as we dig into the features of the latest Spark version – what else it has to offer to our big data developers – apart from a brand new barrier execution mode supporting Databricks Runtime5.0!

Of late, as we were all busy tapping IoT revolution and latest discoveries in the domain of AI, Apache Spark rolled out a new array of exciting goodies in terms tech features to enhance the data experience for data scientists and developers. The power package is Apache Spark 2.4 – it boasts of a dozen improved features and upgrades that tackle large-scale data processing in a jiffy. Known to all, Apache Spark is a powerful analytics engine that is designed to deal with humongous volumes of data with speed and efficiency. Under the Apache Software umbrella, Spark is one of the most successful projects and the most active open source big data programs.

The latest Spark version is a combination of its erstwhile goals, such as ease of use, efficiency and speed, along with stability and refinement. On a positive note, Project Hydrogen is finally panning out as expected. Designed to ensure better coordination between big data and AI, deep learning frameworks work well. The barrier mode bolsters up better integration with distributed deep learning architecture. The present architecture of Spark is a bit intricate because elaborate communication patterns result in frequent snags and blockages.

However, thanks to the latest barrier execution mode, Spark can seamlessly initiate training tasks like MPI tasks and promptly restart everything when task failures occur. Also, this Spark has introduced a new process of fault tolerance for barrier tasks – whenever barrier task breaks down, Spark mindfully aborts all tasks and initiates the stage.

In addition, Spark 2.4 also comes with built-in advanced functions such as map and array. The latest high-in-order functions permit developers to tackle challenging types directly. Also, these much-improved functions have the ability to manipulate highly advanced values with an anonymous lambda function.

The new Spark offers experimental support for Scala 2.12- owing to this, the developers can now write entire Spark applications with Scala 2.12 just focusing on the 2.12 reliability. It is also equipped with improved interoperability with Java 8 resulting in better serialization of lambda functions.

This latest Spark variant also features built-in support for Apache Avro, the widely recognized data serialization format. As a result, today, the developers can write and read their Avro data within Spark itself. It first started off as a Databricks Project and today it boasts of a host of new functions and superb logical support.

Moreover, Apache Spark 2.4 highlights refined Kubernetes integration in 3 particular ways, and they are as follows:

Aids running containerized PySpark and SparkR on Kubernetes,
Client Mode is on offer,
A higher number of mounting options is made available for increasing Kubernetes volumes.

Besides, other improvements to be noted are:

Pandas UDF upgrades,
Prompt ascertainment of DataFrames in notebooks,
Elimination of 2GB-block size limitation.

Additionally, the new release supports Databricks Runtime 5.0.

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The blog has been sourced from ― jaxenter.com/apache-spark-2-4-overview-151623.html

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The Soaring Importance of Apache Spark in Machine Learning: Explained Here

Posted on January 22, 2019May 23, 2020 by Dexlab

The Soaring Importance of Apache Spark in Machine Learning: Explained Here

Apache Spark has become an essential part of operations of big technology firms, like Yahoo, Facebook, Amazon and eBay. This is mainly owing to the lightning speed offered by Apache Spark – it is the speediest engine for big data activities. The reason behind this speed: Rather than a disk, it operates on memory (RAM). Hence, data processing in Spark is even faster than in Hadoop.

The main purpose of Apache Spark is offering an integrated platform for big data processes. It also offers robust APIs in Python, Java, R and Scala. Additionally, integration with Hadoop ecosystem is very convenient.

Why Apache Spark for ML applications?

Many machine learning processes involve heavy computation. Distributing such processes through Apache Spark is the fastest, simplest and most efficient approach. For the needs of industrial applications, a powerful engine capable of processing data in real time, performing in batch mode and in-memory processing is vital. With Apache Spark, real-time streaming, graph processing, interactive processing and batch processing are possible through a speedy and simple interface. This is why Spark is so popular in ML applications.

Apache Spark Use Cases:

Below are some noteworthy applications of Apache Spark engine across different fields:

Entertainment: In the gaming industry, Apache Spark is used to discover patterns from the firehose of real-time gaming information and come up with swift responses in no time. Jobs like targeted advertising, player retention and auto-adjustment of complexity levels can be deployed to Spark engine.

E-commerce: In the ecommerce sector, providing recommendations in tandem with fresh trends and demands is crucial. This can be achieved because real-time data is relayed to streaming clustering algorithms such as k-means, the results from which are further merged with various unstructured data sources, like customer feedback. ML algorithms with the aid of Apache Spark process the immeasurable chunk of interactions happening between users and an e-com platform, which are expressed via complex graphs.

Finance: In finance, Apache Spark is very helpful in detecting fraud or intrusion and for authentication. When used with ML, it can study business expenses of individuals and frame suggestions the bank must give to expose customers to new products and avenues. Moreover, financial problems are indentified fast and accurately. PayPal incorporates ML techniques like neural networks to spot unethical or fraud transactions.

Healthcare: Apache Spark is used to analyze medical history of patients and determine who is prone to which ailment in future. Moreover, to bring down processing time, Spark is applied in genomic data sequencing too.

Media: Several websites use Apache Spark together with MongoDB for better video recommendations to users, which is generated from their historical data.

ML and Apache Spark:

Many enterprises have been working with Apache Spark and ML algorithms for improved results. Yahoo, for example, uses Apache Spark along with ML algorithms to collect innovative topics than can enhance user interest. If only ML is used for this purpose, over 20, 000 lines of code in C or C++ will be needed, but with Apache Spark, the programming code is snipped at 150 lines! Another example is Netflix where Apache Spark is used for real-time streaming, providing better video recommendations to users. Streaming technology is dependent on event data, and Apache Spark ML facilities greatly improve the efficiency of video recommendations.

Spark has a separate library labelled MLib for machine learning, which includes algorithms for classification, collaborative filtering, clustering, dimensionality reduction, etc. Classification is basically sorting things into relevant categories. For example in mails, classification is done on the basis of inbox, draft, sent and so on. Many websites suggest products to users depending on their past purchases – this is collaborative filtering. Other applications offered by Apache Spark Mlib are sentiment analysis and customer segmentation.

Conclusion:

Apache Spark is a highly powerful API for machine learning applications. Its aim is wide-scale popularity of big data processing and making machine learning practical and approachable. Challenging tasks like processing massive volumes of data, both real-time and archived, are simplified through Apache Spark. Any kind of streaming and predictive analytics solution benefits hugely from its use.

If this article has piqued your interest in Apache Spark, take the next step right away and join Apache Spark training in Delhi. DexLab Analytics offers one the best Apache Spark certification in Gurgaon – experienced industry professionals train you dedicatedly, so you master this leading technology and make remarkable progress in your line of work.

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Apache Spark 101: Understanding the Fundamentals

Posted on December 28, 2018December 28, 2018 by Dexlab

Apache Spark 101: Understanding the Fundamentals

Apache Spark is designed to make data science easier. Obviously, the breed of data scientists leverages machine learning – through a set of tools, techniques and algorithms that helps learn from data. Often, these algorithms are iterative, Spark speeds up iterative data processing boosting implementation and analysis.

Introducing Apache Spark

Equipped with a sophisticated and expressive development API, Apache Spark is cutting edge open-source distributed general-purpose cluster computing framework. It lets data specialists to effectively execute machine learning, streaming or SQL workloads. It comes with in-memory data processing engine combined with an advanced APIs for top-notch programming languages, including R, Scala, SQL, Python and Java.

It can also be defined as a distributed, data processing engine ideal for streaming and batch modes exhibiting graph processing, SQL queries and machine learning.

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History

To better understand what Spark offers, it is important to take a look back at the history of Spark. MapReduce used to dominate the sphere before Spark came into existence. It was a robust distributed processing framework that empowered Google to index humongous volume of content on the web, across huge clusters of myriad commodity servers.

A year after a white paper on MapReduce framework was published by Google, Apache Hadoop came into being – the latter was launched in the year 2009 as a project within the AMPLab at the University of California, Berkeley. However, it came into limelight in 2013 – when Apache Software Foundation acquired it as their incubated project and since then Spark has become the most influential project initiated by the Foundation. The community surrounding the project has been flourishing since then – and it includes notable individual contributors and corporate bigwigs, such as IBM, Huawei and Databricks.

Why Did Spark Replace MapReduce?

Interestingly, Spark was developed to keep the advantages of MapReduce intact, while making it easier to implement and more productive.

Benefits of Spark over MapReduce:

Execution in Spark is pretty faster; it caches data in memory from various parallel operations, while MapReduce focuses more on writing and reading from disk.
Across JVM processes, Spark executes multi-threaded tasks, seamlessly, whereas MapReduce feels heavier amidst JVM processes.
Undeniably, Spark supports quick startup, better parallelism and improved CPU utilization.
For an enriching functional programming experience, Spark is preferable.
Notably, Spark is better for using parallel processing of distributed data in association with iterative algorithms.

Who Uses Spark?

Digital natives, like Huawei and IBM, have already invested hugely on Spark adoption, integrating it with their own products. Also, an increasing number of startups have started building businesses around Spark. Prominent Hadoop vendors are – MapR, Cloudera, Databricks and Hortonworks – they have all shifted their focus to support YARN-based Apache Spark.

Web-based organizations, like Chinese search engine giant Baidu, an e-commerce setup Taobao and a social networking company Tencent – all have embraced Apache Spark and generates tremendous amounts of data per day on countless clusters of compute nodes.

Are you looking for the best Apache Spark training center in Gurgaon? You are at the right place! Hope we can help you.

The blog has been sourced from ― mapr.com/blog/spark-101-what-it-what-it-does-and-why-it-matters

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Databricks Supports Apache Spark 2.4 and Adds ML Runtime

Posted on December 18, 2018December 18, 2018 by Dexlab

Databricks Supports Apache Spark 2.4 and Adds ML Runtime

Databricks recently embraced the Apache Spark 2.4, a latest version. They are integrating it into their platform of analytics. Also, the company is on its way to unveil another runtime feature that would simplify the intricacies of deep learning.

Needless to say, Databricks is one of the most powerful supporters of version 2.4 of Spark, the notable stream processing framework. The latest upgraded version features improvement in the performance of machine learning framework running on Spark as well as distributed deep learning. It also includes modifications that would instantly address dependency issues related to deep learning tasks.

Project Hydrogen is an ambitious initiative; it’s under this tag the Spark upgrades were fused and introduced as a new scheduling mode, known as ‘barrier execution’. It encourages developers to embed training in lieu of distributed deep learning posed as an Apache Spark workload.

In context to above, Reynold Xin, a staunch Spark contributor and co-founder at Databricks said, “This is the largest change to Spark’s scheduler since the inception of the project.” He further mentioned that the upgrades will actually help reduce the complexities of machine learning structures and ensure high efficacy.

The latest runtime detail categorized HorovodRunner is developed to rationalize scaling and streamlining of distributed deep learning workloads. It is performed from a single machine to huge clusters. Previously, drifting from single-node workloads to huge distributed training on GPU or CPU clusters needed a bunch of full code rewrites – it was exceedingly challenging enough. Undeniably, HorovodRunner reduces training as well as programming time cutting down them from hours to a few minutes. This was claimed by the professionals working at Databricks.

Besides Horovod, Databricks is found to be saying that its platform offers native integration with TensorFlow, Kera and several other machine learning programs coupled with MLib and GraphFrames super machine learning algorithms.

On top of all this, a few weeks back, Databricks associated itself with a versatile cloud data integrator Talend with a sole aim to integrate the cloud service with their own data analytics platform to allow data scientists leverage the cluster computing framework – it would help process large data sets at scale.

About Apache Spark:

Apache Spark is a robust, well-integrated analytics engine efficient in processing large datasets. Crafted for high speed, productivity and generic use, it is considered as one of the most popular projects in motion under Apache software umbrella. It is also one of the most volatile and active open source big data projects.

DexLab Analytics is a top-notch Apache Spark training institute in Gurgaon. It provides top of the line in-demand skill training on a plethora of new-age IT related courses, such as data science, data analytics courses, big data, risk analytics and more.

The blog was sourced from ― www.datanami.com/2018/11/19/databricks-upgrades-spark-support-adds-ml-runtime

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Latest Open Source Tools in Data Analytics Beyond Apache Spark

Posted on August 26, 2016February 12, 2019 by Dexlab

In the IT world change is always in the air, but especially in the realm of data analytics, profound change is coming up as open source tools are making a huge impact. Well you may already be familiar with most of the stars in the open source space like Hadoop and Spark. But with the growing demand for new analytical tools which will help to round up the data holistically within the analytical ecosystem. A noteworthy point about these tools is the fact that they can be customized to process streaming data.

With the emergence of the IoT (Internet of things) that is giving rise to numerous devices and sensors which will add to this stream of data production, this forms one of the key trends why we need more advanced data analytics tools. The use of streaming data analysis is used for enhanced drug discovery, and institutes like SETI and NASA are also collaborating with each other to analyze terabytes of data, that are highly complex and stream deep in space radio signals.

The Apache Hadoop Spark software has made several headlines in the realm of data analytics that allowed billions of development funds to be showered at it by IBM along with other companies. But along with the big players several small open source projects are also on the rise. Here are the latest few that grabbed our attention:

Apache Drill:

This open source analytics tool has had quite good impact on the analytics realm, so much so that companies like MapR have even included it into their Hadoop distribution systems. This project is a top-level one at Apache and is being leveraged along with the star Apache Spark in many streaming data analytics scenarios.

Like at the New York Apache Drill meeting in January this year, the engineers at MapR system showed how Apache Spark and Drill could be used in tandem in a use cases that involve packet capture and almost real-time search and query.

But Drill is not ideal for streaming data application because it is a distributed schema free SQL engine. People like IT personnel and developers can use Drill to interactively explore data in Hadoop and NoSQL databases for things such as HBase and MongoDB. There is no need to explicitly describe the schemas or maintain them because the Drill has the ability to automatically leverage the structure which is embedded in the data. It is capable of streaming the data in memory between operators and minimizes the use of disks unless you need to complete a query.

Grappa:

Both big and small organizations are constantly working on new ways to cull actionable insights from their data streaming in constantly. Most of them are working with data that are generated in clusters and are relying on commodity hardware. This puts a premium label on affordable data centric work processes. This will do wonders to enhance the functionality and performance of tools such as MapReduce and even Spark. With the open source project Grappa that helps to scale the data intensive applications on commodity clusters and will provide a new type of abstraction which will trump the existing distributed shared memory (DSM) systems.

Grappa is available for free on the GitHub under a BSD license. And to use Grappa one can refer to its quick start guide that is available readily on the README file to build and execute it on a cluster.

These were the latest open source data analytics tools of 2017. For more such interesting news on Big Data analytics and information about analytics training institute follow our daily uploads from DexLab Analytics.

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