Apache Spark is a fast and general engine for large-scale data processing. It was originally developed in 2009 and is now supported by Databricks. Spark provides APIs in Java, Scala, Python and can run on Hadoop, Mesos, standalone or in the cloud. It provides high-level APIs like Spark SQL, MLlib, GraphX and Spark Streaming for structured data processing, machine learning, graph analytics and stream processing.
Let Spark Fly: Advantages and Use Cases for Spark on HadoopMapR Technologies
http://bit.ly/1BTaXZP – Apache Spark is currently one of the most active projects in the Hadoop ecosystem, and as such, there’s been plenty of hype about it in recent months, but how much of the discussion is marketing spin? And what are the facts? MapR and Databricks, the company that created and led the development of the Spark stack, will cut through the noise to uncover practical advantages for having the full set of Spark technologies at your disposal and reveal the benefits for running Spark on Hadoop
This presentation was given at a webinar hosted by Data Science Central and co-presented by MapR + Databricks.
To see the webinar, please go to: http://www.datasciencecentral.com/video/let-spark-fly-advantages-and-use-cases-for-spark-on-hadoop
Apache Hadoop started as batch: simple, powerful, efficient, scalable, and a shared platform. However, Hadoop is more than that. It's true strengths are:
Scalability – it's affordable due to it being open-source and its use of commodity hardware for reliable distribution.
Schema on read – you can afford to save everything in raw form.
Data is better than algorithms – More data and a simple algorithm can be much more meaningful than less data and a complex algorithm.
http://bit.ly/1BTaXZP – Hadoop has been a huge success in the data world. It’s disrupted decades of data management practices and technologies by introducing a massively parallel processing framework. The community and the development of all the Open Source components pushed Hadoop to where it is now.
That's why the Hadoop community is excited about Apache Spark. The Spark software stack includes a core data-processing engine, an interface for interactive querying, Sparkstreaming for streaming data analysis, and growing libraries for machine-learning and graph analysis. Spark is quickly establishing itself as a leading environment for doing fast, iterative in-memory and streaming analysis.
This talk will give an introduction the Spark stack, explain how Spark has lighting fast results, and how it complements Apache Hadoop.
Keys Botzum - Senior Principal Technologist with MapR Technologies
Keys is Senior Principal Technologist with MapR Technologies, where he wears many hats. His primary responsibility is interacting with customers in the field, but he also teaches classes, contributes to documentation, and works with engineering teams. He has over 15 years of experience in large scale distributed system design. Previously, he was a Senior Technical Staff Member with IBM, and a respected author of many articles on the WebSphere Application Server as well as a book.
This slide introduces Hadoop Spark.
Just to help you construct an idea of Spark regarding its architecture, data flow, job scheduling, and programming.
Not all technical details are included.
In this one day workshop, we will introduce Spark at a high level context. Spark is fundamentally different than writing MapReduce jobs so no prior Hadoop experience is needed. You will learn how to interact with Spark on the command line and conduct rapid in-memory data analyses. We will then work on writing Spark applications to perform large cluster-based analyses including SQL-like aggregations, machine learning applications, and graph algorithms. The course will be conducted in Python using PySpark.
Let Spark Fly: Advantages and Use Cases for Spark on HadoopMapR Technologies
http://bit.ly/1BTaXZP – Apache Spark is currently one of the most active projects in the Hadoop ecosystem, and as such, there’s been plenty of hype about it in recent months, but how much of the discussion is marketing spin? And what are the facts? MapR and Databricks, the company that created and led the development of the Spark stack, will cut through the noise to uncover practical advantages for having the full set of Spark technologies at your disposal and reveal the benefits for running Spark on Hadoop
This presentation was given at a webinar hosted by Data Science Central and co-presented by MapR + Databricks.
To see the webinar, please go to: http://www.datasciencecentral.com/video/let-spark-fly-advantages-and-use-cases-for-spark-on-hadoop
Apache Hadoop started as batch: simple, powerful, efficient, scalable, and a shared platform. However, Hadoop is more than that. It's true strengths are:
Scalability – it's affordable due to it being open-source and its use of commodity hardware for reliable distribution.
Schema on read – you can afford to save everything in raw form.
Data is better than algorithms – More data and a simple algorithm can be much more meaningful than less data and a complex algorithm.
http://bit.ly/1BTaXZP – Hadoop has been a huge success in the data world. It’s disrupted decades of data management practices and technologies by introducing a massively parallel processing framework. The community and the development of all the Open Source components pushed Hadoop to where it is now.
That's why the Hadoop community is excited about Apache Spark. The Spark software stack includes a core data-processing engine, an interface for interactive querying, Sparkstreaming for streaming data analysis, and growing libraries for machine-learning and graph analysis. Spark is quickly establishing itself as a leading environment for doing fast, iterative in-memory and streaming analysis.
This talk will give an introduction the Spark stack, explain how Spark has lighting fast results, and how it complements Apache Hadoop.
Keys Botzum - Senior Principal Technologist with MapR Technologies
Keys is Senior Principal Technologist with MapR Technologies, where he wears many hats. His primary responsibility is interacting with customers in the field, but he also teaches classes, contributes to documentation, and works with engineering teams. He has over 15 years of experience in large scale distributed system design. Previously, he was a Senior Technical Staff Member with IBM, and a respected author of many articles on the WebSphere Application Server as well as a book.
This slide introduces Hadoop Spark.
Just to help you construct an idea of Spark regarding its architecture, data flow, job scheduling, and programming.
Not all technical details are included.
In this one day workshop, we will introduce Spark at a high level context. Spark is fundamentally different than writing MapReduce jobs so no prior Hadoop experience is needed. You will learn how to interact with Spark on the command line and conduct rapid in-memory data analyses. We will then work on writing Spark applications to perform large cluster-based analyses including SQL-like aggregations, machine learning applications, and graph algorithms. The course will be conducted in Python using PySpark.
Introduction to the Hadoop Ecosystem (FrOSCon Edition)Uwe Printz
Talk held at the FrOSCon 2013 on 24.08.2013 in Sankt Augustin, Germany
Agenda:
- What is Big Data & Hadoop?
- Core Hadoop
- The Hadoop Ecosystem
- Use Cases
- What‘s next? Hadoop 2.0!
Hadoop became the most common systm to store big data.
With Hadoop, many supporting systems emerged to complete the aspects that are missing in Hadoop itself.
Together they form a big ecosystem.
This presentation covers some of those systems.
While not capable to cover too many in one presentation, I tried to focus on the most famous/popular ones and on the most interesting ones.
Apache Spark: The Next Gen toolset for Big Data Processingprajods
The Spark project from Apache(spark.apache.org), is the next generation of Big Data processing systems. It uses a new architecture and in-memory processing for orders of magnitude improvement in performance. Some would call it the successor to the Hadoop set of tools. Hadoop is a batch mode Big Data processor and depends on disk based files. Spark improves on this and supports real time and interactive processing, in addition to batch processing.
Table of contents:
1. The Big Data triangle
2. Hadoop stack and its limitations
3. Spark: An Overview
3.a. Spark Streaming
3.b. GraphX: Graph processing
3.c. MLib: Machine Learning
4. Performance characteristics of Spark
Introduction to the Hadoop Ecosystem (IT-Stammtisch Darmstadt Edition)Uwe Printz
Talk held at the IT-Stammtisch Darmstadt on 08.11.2013
Agenda:
- What is Big Data & Hadoop?
- Core Hadoop
- The Hadoop Ecosystem
- Use Cases
- What‘s next? Hadoop 2.0!
These slides provide highlights of my book HDInsight Essentials. Book link is here: http://www.packtpub.com/establish-a-big-data-solution-using-hdinsight/book
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Rapid Prototyping in PySpark Streaming: The Thermodynamics of Docker Containe...Richard Seymour
A tour of pyspark streaming in Apache Spark with an example calculating CPU usage using the Docker stats API. Two buzzwordy technologies for the price of one.
The Future of Hadoop: A deeper look at Apache SparkCloudera, Inc.
Jai Ranganathan, Senior Director of Product Management, discusses why Spark has experienced such wide adoption and provide a technical deep dive into the architecture. Additionally, he presents some use cases in production today. Finally, he shares our vision for the Hadoop ecosystem and why we believe Spark is the successor to MapReduce for Hadoop data processing.
Are you a Java developer interested in big data processing and never had the chance to work with Apache Spark ? My presentation aims to help you get familiar with Spark concepts and start developing your own distributed processing application.
Big Data Day LA 2015 - Spark after Dark by Chris Fregly of DatabricksData Con LA
Spark and the Berkeley Data Analytics Stack (BDAS) represent a unified, distributed, and parallel high-performance big data processing and analytics platform. Written in Scala, Spark supports multiple languages including Python, Java, Scala, and even R. Commonly seen as the successor to Hadoop, Spark is fully compatible with Hadoop including UDFs, SerDe’s, file formats, and compression algorithms. The high-level Spark libraries include stream processing, machine learning, graph processing, approximating, sampling - and every combination therein. The most active big data open source project in existence, Spark boasts ~500 of contributors and 10,000 commits to date. Spark recently broke the Daytona GraySort 100 TB record with almost 3 times the throughput, 1/3rd less time, and 1/10th of the resources!
Introduction to the Hadoop Ecosystem (FrOSCon Edition)Uwe Printz
Talk held at the FrOSCon 2013 on 24.08.2013 in Sankt Augustin, Germany
Agenda:
- What is Big Data & Hadoop?
- Core Hadoop
- The Hadoop Ecosystem
- Use Cases
- What‘s next? Hadoop 2.0!
Hadoop became the most common systm to store big data.
With Hadoop, many supporting systems emerged to complete the aspects that are missing in Hadoop itself.
Together they form a big ecosystem.
This presentation covers some of those systems.
While not capable to cover too many in one presentation, I tried to focus on the most famous/popular ones and on the most interesting ones.
Apache Spark: The Next Gen toolset for Big Data Processingprajods
The Spark project from Apache(spark.apache.org), is the next generation of Big Data processing systems. It uses a new architecture and in-memory processing for orders of magnitude improvement in performance. Some would call it the successor to the Hadoop set of tools. Hadoop is a batch mode Big Data processor and depends on disk based files. Spark improves on this and supports real time and interactive processing, in addition to batch processing.
Table of contents:
1. The Big Data triangle
2. Hadoop stack and its limitations
3. Spark: An Overview
3.a. Spark Streaming
3.b. GraphX: Graph processing
3.c. MLib: Machine Learning
4. Performance characteristics of Spark
Introduction to the Hadoop Ecosystem (IT-Stammtisch Darmstadt Edition)Uwe Printz
Talk held at the IT-Stammtisch Darmstadt on 08.11.2013
Agenda:
- What is Big Data & Hadoop?
- Core Hadoop
- The Hadoop Ecosystem
- Use Cases
- What‘s next? Hadoop 2.0!
These slides provide highlights of my book HDInsight Essentials. Book link is here: http://www.packtpub.com/establish-a-big-data-solution-using-hdinsight/book
r packagesdata analytics study material;
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python for data analysis course;
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study data analytics;
how to learn data analytics;
data analysis course free;
statistical methods and data analysis;
big data analytics;
data analysis companies;
python data analysis course;
tools that can be used to analyse data;
data analysis consulting;
basic data analytics;
data analysis programs;
examples of data analysis tools;
big data analysis tools;
data analytics tools and techniques;
statistics for data analytics;
data analytics tools;
data analytics and big data;
data analytics big data;
data analysis software;
data analytics with excel;
website data analysis;
data analytics companies;
data analysis qualifications;
tools for data analytics;
data analysis tools;
qualitative data analysis software;
free data analytics;
data analysis website;
tools for analyzing data;
data analytics software;
free data analysis software;
tools for analysing data;
data mining book;
learn data analysis;
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it data analytics;
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unstructured data analytics;
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dissertation data analysis;
sample of data analysis;
data analysis online;
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tools of data analysis;
analytical tools for data analysis;
statistical tools to analyse data;
data analysis help;
data analysis education;
statistical technique for data analysis;
tools for data analysis;
how to learn data analysis;
data analytics tutorial;
excel data analytics;
data mining course;
data analysis software free;
big data and data analytics;
statistical analysis software;
tools to analyse data;
online data analysis;
data mining software;
data analytics statistics;
how to do data analytics;
statistical data analysis tools;
data analyst tools;
business data analysis;
tools and techniques of data analysis;
education data analysis;
advanced data analytics;
study data analysis;
spreadsheet data analysis;
learn data analysis in excel;
software for data analysis;
shared data warehouse;
what are data analysis tools;
data analytics and statistics;
data analyse;
analysis courses;
data analysis tools for research;
research data analysis tools;
big data analysis;
data mining programs;
applications of data analytics;
data analysis tools and techniques;
Rapid Prototyping in PySpark Streaming: The Thermodynamics of Docker Containe...Richard Seymour
A tour of pyspark streaming in Apache Spark with an example calculating CPU usage using the Docker stats API. Two buzzwordy technologies for the price of one.
The Future of Hadoop: A deeper look at Apache SparkCloudera, Inc.
Jai Ranganathan, Senior Director of Product Management, discusses why Spark has experienced such wide adoption and provide a technical deep dive into the architecture. Additionally, he presents some use cases in production today. Finally, he shares our vision for the Hadoop ecosystem and why we believe Spark is the successor to MapReduce for Hadoop data processing.
Are you a Java developer interested in big data processing and never had the chance to work with Apache Spark ? My presentation aims to help you get familiar with Spark concepts and start developing your own distributed processing application.
Big Data Day LA 2015 - Spark after Dark by Chris Fregly of DatabricksData Con LA
Spark and the Berkeley Data Analytics Stack (BDAS) represent a unified, distributed, and parallel high-performance big data processing and analytics platform. Written in Scala, Spark supports multiple languages including Python, Java, Scala, and even R. Commonly seen as the successor to Hadoop, Spark is fully compatible with Hadoop including UDFs, SerDe’s, file formats, and compression algorithms. The high-level Spark libraries include stream processing, machine learning, graph processing, approximating, sampling - and every combination therein. The most active big data open source project in existence, Spark boasts ~500 of contributors and 10,000 commits to date. Spark recently broke the Daytona GraySort 100 TB record with almost 3 times the throughput, 1/3rd less time, and 1/10th of the resources!
This presentation is an introduction to Apache Spark. It covers the basic API, some advanced features and describes how Spark physically executes its jobs.
Spark After Dark: Real time Advanced Analytics and Machine Learning with SparkChris Fregly
Generating high quality dating recommendations using advanced analytics, streaming data pipelines, machine learning, graph analytics, and text processing.
Use the latest Spark libraries including Spark SQL, Data Frames, BlinkDB, Spark Streaming, MLlib, and GraphX as well as Twitter's Algebird for sketch algorithms, probabilistic data structures, and approximations.
Jump Start with Apache Spark 2.0 on DatabricksAnyscale
Apache Spark 2.x has laid the foundation for many new features and functionality. Its main three themes—easier, faster, and smarter—are pervasive in its unified and simplified high-level APIs for Structured data.
In this introductory part lecture and part hands-on workshop you’ll learn how to apply some of these new APIs using Databricks Community Edition. In particular, we will cover the following areas:
Apache Spark Fundamentals & Concepts
What’s new in Spark 2.x
SparkSessions vs SparkContexts
Datasets/Dataframes and Spark SQL
Introduction to Structured Streaming concepts and APIs
(Berkeley CS186 guest lecture) Big Data Analytics Systems: What Goes Around C...Reynold Xin
(Berkeley CS186 guest lecture)
Big Data Analytics Systems: What Goes Around Comes Around
Introduction to MapReduce, GFS, HDFS, Spark, and differences between "Big Data" and database systems.
DataFrame: Spark's new abstraction for data science by Reynold Xin of DatabricksData Con LA
Abstract:
This talk will provide a technical overview of Spark’s DataFrame API in the context of data science, from exploratory data analysis to ETL to machine learning. We will review the API with a demo using a real-world dataset, covering data input/output, summary statistics, missing data handling, and statistical functions. We will then dive into the internals of DataFrame implementations, followed by how we view DataFrame in the long-term Spark roadmap and ecosystem.
Bio:
Reynold Xin is a cofounder of Databricks and a committer on Apache Spark, driving the design of Spark's next-gen API and execution engine. He holds the current world record in 100TB sorting (Daytona GraySort), beating the previous record by a factor of 3. On leave from his PhD at the UC Berkeley AMPLab, he also wrote the highest cited papers in SIGMOD 2011 and SIGMOD 2013.
Apache Spark presentation at HasGeek FifthElelephant
https://fifthelephant.talkfunnel.com/2015/15-processing-large-data-with-apache-spark
Covering Big Data Overview, Spark Overview, Spark Internals and its supported libraries
Apache Spark is a In Memory Data Processing Solution that can work with existing data source like HDFS and can make use of your existing computation infrastructure like YARN/Mesos etc. This talk will cover a basic introduction of Apache Spark with its various components like MLib, Shark, GrpahX and with few examples.
Author: Stefan Papp, Data Architect at “The unbelievable Machine Company“. An overview of Big Data Processing engines with a focus on Apache Spark and Apache Flink, given at a Vienna Data Science Group meeting on 26 January 2017. Following questions are addressed:
• What are big data processing paradigms and how do Spark 1.x/Spark 2.x and Apache Flink solve them?
• When to use batch and when stream processing?
• What is a Lambda-Architecture and a Kappa Architecture?
• What are the best practices for your project?
Presentation detailed about capabilities of In memory Analytic using Apache Spark. Apache Spark overview with programming mode, cluster mode with Mosos, supported operations and comparison with Hadoop Map Reduce. Elaborating Apache Spark Stack expansion like Shark, Streaming, MLib, GraphX
Abstract –
Spark 2 is here, while Spark has been the leading cluster computation framework for severl years, its second version takes Spark to new heights. In this seminar, we will go over Spark internals and learn the new concepts of Spark 2 to create better scalable big data applications.
Target Audience
Architects, Java/Scala developers, Big Data engineers, team leaders
Prerequisites
Java/Scala knowledge and SQL knowledge
Contents:
- Spark internals
- Architecture
- RDD
- Shuffle explained
- Dataset API
- Spark SQL
- Spark Streaming
http://bit.ly/1BTaXZP – As organizations look for even faster ways to derive value from big data, they are turning to Apache Spark is an in-memory processing framework that offers lightning-fast big data analytics, providing speed, developer productivity, and real-time processing advantages. The Spark software stack includes a core data-processing engine, an interface for interactive querying, Spark Streaming for streaming data analysis, and growing libraries for machine-learning and graph analysis. Spark is quickly establishing itself as a leading environment for doing fast, iterative in-memory and streaming analysis. This talk will give an introduction the Spark stack, explain how Spark has lighting fast results, and how it complements Apache Hadoop. By the end of the session, you’ll come away with a deeper understanding of how you can unlock deeper insights from your data, faster, with Spark.
An Engine to process big data in faster(than MR), easy and extremely scalable way. An Open Source, parallel, in-memory processing, cluster computing framework. Solution for loading, processing and end to end analyzing large scale data. Iterative and Interactive : Scala, Java, Python, R and with Command line interface.
Video to talk: https://www.youtube.com/watch?v=gd4Jqtyo7mM
Apache Spark is a next generation engine for large scale data processing built with Scala. This talk will first show how Spark takes advantage of Scala's function idioms to produce an expressive and intuitive API. You will learn about the design of Spark RDDs and the abstraction enables the Spark execution engine to be extended to support a wide variety of use cases(Spark SQL, Spark Streaming, MLib and GraphX). The Spark source will be be referenced to illustrate how these concepts are implemented with Scala.
http://www.meetup.com/Scala-Bay/events/209740892/
Spark real world use cases and optimizationsGal Marder
Using Spark for BigData became the standard in the industry. The internet is
full with "hello world" examples, but when your Spark job meets production all hell breaks loose. We will cover real world use cases, how they were designed, why they didn't work and how we made them run fast
Let's start GraphQL: structure, behavior, and architectureAndrii Gakhov
In this talk, I describe the path to start with GraphQL in a company that has experience with Python stack and REST API. We go from the definition of GraphQL, via behavioral aspects and data management, to the most common architectural questions.
Exceeding Classical: Probabilistic Data Structures in Data Intensive Applicat...Andrii Gakhov
We interact with an increasing amount of data but classical data structures and algorithms can't fit our requirements anymore. This talk is to present the probabilistic algorithms and data structures and describe the main areas of their applications.
Too Much Data? - Just Sample, Just Hash, ...Andrii Gakhov
Code & Supply | Pittsburgh Meetup | May 31, 2019
Probabilistic Data Structures and Algorithms (PDSA) is a common name of data structures based on different hashing techniques. They have been incorporated into Spark SQL. They are also used by Amazon Redshift and Google BigQuery, Redis and Elasticsearch, and many others. Consequently, PDSA is not just some interesting academic topic.
Book "Probabilistic Data Structures and Algorithms for Big Data Applications" (ISBN: 978-3748190486 ) https://pdsa.gakhov.com
Implementing a Fileserver with Nginx and LuaAndrii Gakhov
Using the power of Nginx it is easy to implement quite complex logic of file upload with metadata and authorization support, and without need of any heavy application server. In this article you can find the basic implementation of such Fileserver using Nginx and Lua only.
Have you heard about Salad Olivje, Vereniki, Pirogi and Bliny, but you are unsure what it is all about? This easy Pecha Kucha presentation can help you to become an expert :)
Probabilistic data structures. Part 4. SimilarityAndrii Gakhov
The book "Probabilistic Data Structures and Algorithms in Big Data Applications" is now available at Amazon and from local bookstores. More details at https://pdsa.gakhov.com
In this presentation, I described popular algorithms that employed Locality Sensitive Hashing (LSH) to solve similarity-related problems. I started with LSH in general and then switched to such algorithms as MinHash (LSH for Jaccard similarity) and SimHash (LSH for cosine similarity). Each approach came with some math that was behind it and simple examples to clarify the theory statements.
Probabilistic data structures. Part 3. FrequencyAndrii Gakhov
The book "Probabilistic Data Structures and Algorithms in Big Data Applications" is now available at Amazon and from local bookstores. More details at https://pdsa.gakhov.com
In the presentation, I described popular and very simple data structures and algorithms to estimate the frequency of elements or find most occurred values in a data stream, such as Count-Min Sketch, Majority Algorithm, and Misra-Gries Algorithm. Each approach comes with some math that is behind it and simple examples to clarify the theory statements.
Probabilistic data structures. Part 2. CardinalityAndrii Gakhov
The book "Probabilistic Data Structures and Algorithms in Big Data Applications" is now available at Amazon and from local bookstores. More details at https://pdsa.gakhov.com
In the presentation, I described common data structures and algorithms to estimate the number of distinct elements in a set (cardinality), such as Linear Counting, HyperLogLog, and HyperLogLog++. Each approach comes with some math that is behind it and simple examples to clarify the theory statements.
Some highlights and impression from the API Days Berlin + API Strat Europe // April 24-25, 2015
* microservices
* hypermedia API
* swagger
* 3scale API Gateway
Exploring Innovations in Data Repository Solutions - Insights from the U.S. G...Globus
The U.S. Geological Survey (USGS) has made substantial investments in meeting evolving scientific, technical, and policy driven demands on storing, managing, and delivering data. As these demands continue to grow in complexity and scale, the USGS must continue to explore innovative solutions to improve its management, curation, sharing, delivering, and preservation approaches for large-scale research data. Supporting these needs, the USGS has partnered with the University of Chicago-Globus to research and develop advanced repository components and workflows leveraging its current investment in Globus. The primary outcome of this partnership includes the development of a prototype enterprise repository, driven by USGS Data Release requirements, through exploration and implementation of the entire suite of the Globus platform offerings, including Globus Flow, Globus Auth, Globus Transfer, and Globus Search. This presentation will provide insights into this research partnership, introduce the unique requirements and challenges being addressed and provide relevant project progress.
Cyaniclab : Software Development Agency Portfolio.pdfCyanic lab
CyanicLab, an offshore custom software development company based in Sweden,India, Finland, is your go-to partner for startup development and innovative web design solutions. Our expert team specializes in crafting cutting-edge software tailored to meet the unique needs of startups and established enterprises alike. From conceptualization to execution, we offer comprehensive services including web and mobile app development, UI/UX design, and ongoing software maintenance. Ready to elevate your business? Contact CyanicLab today and let us propel your vision to success with our top-notch IT solutions.
May Marketo Masterclass, London MUG May 22 2024.pdfAdele Miller
Can't make Adobe Summit in Vegas? No sweat because the EMEA Marketo Engage Champions are coming to London to share their Summit sessions, insights and more!
This is a MUG with a twist you don't want to miss.
Enhancing Project Management Efficiency_ Leveraging AI Tools like ChatGPT.pdfJay Das
With the advent of artificial intelligence or AI tools, project management processes are undergoing a transformative shift. By using tools like ChatGPT, and Bard organizations can empower their leaders and managers to plan, execute, and monitor projects more effectively.
Developing Distributed High-performance Computing Capabilities of an Open Sci...Globus
COVID-19 had an unprecedented impact on scientific collaboration. The pandemic and its broad response from the scientific community has forged new relationships among public health practitioners, mathematical modelers, and scientific computing specialists, while revealing critical gaps in exploiting advanced computing systems to support urgent decision making. Informed by our team’s work in applying high-performance computing in support of public health decision makers during the COVID-19 pandemic, we present how Globus technologies are enabling the development of an open science platform for robust epidemic analysis, with the goal of collaborative, secure, distributed, on-demand, and fast time-to-solution analyses to support public health.
We describe the deployment and use of Globus Compute for remote computation. This content is aimed at researchers who wish to compute on remote resources using a unified programming interface, as well as system administrators who will deploy and operate Globus Compute services on their research computing infrastructure.
Prosigns: Transforming Business with Tailored Technology SolutionsProsigns
Unlocking Business Potential: Tailored Technology Solutions by Prosigns
Discover how Prosigns, a leading technology solutions provider, partners with businesses to drive innovation and success. Our presentation showcases our comprehensive range of services, including custom software development, web and mobile app development, AI & ML solutions, blockchain integration, DevOps services, and Microsoft Dynamics 365 support.
Custom Software Development: Prosigns specializes in creating bespoke software solutions that cater to your unique business needs. Our team of experts works closely with you to understand your requirements and deliver tailor-made software that enhances efficiency and drives growth.
Web and Mobile App Development: From responsive websites to intuitive mobile applications, Prosigns develops cutting-edge solutions that engage users and deliver seamless experiences across devices.
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2. • Apache Spark™ is a fast and general engine for
large-scale data processing.
• Lastest release: Spark 1.1.1 (Nov 26, 2014)
• spark.apache.org
• Originally developed in 2009 in UC Berkeley’s
AMPLab, and open sourced in 2010. Now Spark is
supported by Databricks.
4. RDD
• Spark’s primary conception is a Resilient
Distributed Dataset (RDD) - abstraction of an
immutable, distributed dataset.
textFile = sc.textFile(“api.log")
anotherFile = sc.textFile(“hdfs://var/log/api.log”)
• Collections of objects that can be stored in memory
or disk across the cluster
• Parallel functional transformations (map, filter, …)
• Automatically rebuild of failure
5. RDD
• RDDs have actions, which retur n values, and
transformations, which return pointers to new RDDs.
• Actions:
• reduce collect count countByKey take saveAsTextFile
takeSample …
• Transformations:
• map filter flatMap distinct sample join union intersection
reduceByKey groupByKey sortByKey …
errors = logFile.filter(lambda line: line.startswith(“ERROR”))
print errors.count()
6. PERSISTANCE
• You can control persistence of RDD across operations
(MEMORY_ONLY, MEMORY_AND_DISK …)
• When you persist an RDD in memory, each node stores
any partitions of it that it computes in memory and
reuses them in other actions on that dataset (or datasets
derived from it)
• This allows future actions to be much faster (often by
more than 10x).
errors.cache()
endpoint_errors = errors.filter(
lambda line: “/test/endpoint” in line)
endpoint_errors.count()
8. INTERACTIVE DEMO
STRATA+HADOOP WORD EXAMPLE
http://www.datacrucis.com/research/twitter-analysis-for-strata-barcelona-2014-with-apache-spark-and-d3.html
10. SCHEMA RDD
• Spark SQL allows relational queries expressed in SQL,
HiveQL, or Scala to be executed using Spark.
• At the core of this component is a new type of RDD -
SchemaRDD.
• SchemaRDDs are composed of Row objects, along with a
schema that describes the data types of each column in the row.
• A SchemaRDD is similar to a table in a traditional relational
database.
• A SchemaRDD can be created from an existing RDD, a Parquet
file, a JSON dataset, or by running HiveQL against data stored in
Apache Hive.
11. SCHEMA RDD
• To work with SparkSQL you need SQLContext
(or HiveContext)
from spark.sql import SQLContext
sqlCtx = SQLContext(sc)
records = sc.textFile(“customers.csv”)
customers = records.map(lambda line: line.split(“,”))
.map(lambda r: Row(name=r[0], age=int(r[1])))
customersTable = sqlCtx.inferSchema(customers)
customersTable.registerAsTable(“customers”)
12. SCHEMA RDD
User
User
User
Name Age Phone
Name Age Phone
Name Age Phone
RDD SchemaRDD
• Transformations over RDD are just functional
transformation on partitioned collections of objects
• Transformation over the SchemaRDD are
declarative transformations on par titioned
collections of tuples
13. SPARK SQL
• Schema RDD could be used as regular RDD at
the same time.
seniors = sqlCtx.sql(“””
SELECT from customers WHERE age >= 70”””)
print seniors.count()
print seniors.map(lambda r: “Name: “ + r.name).take(10)
15. MACHINE LEARNING LIBRARY
• MLlib uses the linear algebra package Breeze,
which depends on netlib-java, and jblas
• MLlib in Python requires NumPy version 1.4+
• MLlib is under active development
• Many API changes every release
• Not all algorithms are fully functional
16. MACHINE LEARNING LIBRARY
• Basic statistics
• Classification and regression
• linear models (SVMs, logistic regression, linear
regression)
• decision trees
• naive Bayes
• Collaborative filtering
• alternating least squares (ALS)
• Clustering
• k-means
20. SPARK STREAMING
• Spark Streaming enables scalable, high-throughput,
fault-tolerant stream processing of live data streams
• Spark Streaming provides a high-level abstraction
called discretized stream or DStream, which
represents a continuous stream of data
• Internally, a DStream is represented as a sequence
of RDDs.
21. SPARK STREAMING
• Example of processing Twitter Stream with Spark
Streaming:
import org.apache.spark.streaming._
import org.apache.spark.streaming.twitter._
…
val ssc = new StreamingContext(sc, Seconds(1))
val tweets = TwitterUtils.createStream(ssc, auth)
val hashTags = tweets.flatMap(status=>getTags(status))
hashTags.saveAsHadoopFiles("hdfs://...")
22. SPARK STREAMING
• Any operation applied on a DStream translates to
operations on the underlying RDDs.
RDD @ time1 RDD @ time2 RDD @ time3 RDD @ time4
23. SPARK STREAMING
• Spark Streaming also provides windowed
computations, which allow you to apply
transformations over a sliding window of data
25. SPEED
• Run programs up to 100x faster than Hadoop
MapReduce in memory, or 10x faster on disk.
Logistic regression
in Hadoop and Spark
• Spark has won the Daytona GraySort contest for
2014 (sortbenchmark.org) with 4.27 TB/min
(in 2013 Hadoop was the winner with 1.42 TB/min)
26. EASE OF USE
• Supports out of the box:
• Java
• Scala
• Python
• You can use it interactively from the Scala and
Python shells
27. GENERALITY
• SQL with SparkSQL
• Machine Learning with MLlib
• Graphs computation with GraphX
• Streaming processing with Spark Streaming
28. RUNS EVERYWHERE
• Spark could be run on
• Hadoop (YARN)
• Mesos
• standalone
• in the cloud
• Spark can read from
• S3
• HDFS
• HBase
• Cassandra
• any Hadoop data source.