With Hadoop-3.0.0-alpha2 being released in January 2017, it's time to have a closer look at the features and fixes of Hadoop 3.0.
We will have a look at Core Hadoop, HDFS and YARN, and answer the emerging question whether Hadoop 3.0 will be an architectural revolution like Hadoop 2 was with YARN & Co. or will it be more of an evolution adapting to new use cases like IoT, Machine Learning and Deep Learning (TensorFlow)?
Hadoop meets Agile! - An Agile Big Data ModelUwe Printz
Big Data projects are a struggle, not only on the technical side but also on the organizational side. In this talk the author shares his experience and opinions from almost 5 years of Big Data projects and develops an Agile Big Data Model which reflects his ideas on how Big Data projects can be successful, even in large companies.
Talk held at the crossover meetup of the "Agile Stammtisch Rhein-Main" and the "Hadoop & Spark User Group Rhein-Main" at codecentric AG on 31.01.2017.
This talk takes you on a rollercoaster ride through Hadoop 2 and explains the most significant changes and components.
The talk has been held on the JavaLand conference in Brühl, Germany on 25.03.2014.
Agenda:
- Welcome Office
- YARN Land
- HDFS 2 Land
- YARN App Land
- Enterprise Land
Hadoop Operations - Best practices from the fieldUwe Printz
Talk about Hadoop Operations and Best Practices for building and maintaining Hadoop cluster.
Talk was held at the data2day conference in Karlsruhe, Germany on 27.11.2014
With Hadoop-3.0.0-alpha2 being released in January 2017, it's time to have a closer look at the features and fixes of Hadoop 3.0.
We will have a look at Core Hadoop, HDFS and YARN, and answer the emerging question whether Hadoop 3.0 will be an architectural revolution like Hadoop 2 was with YARN & Co. or will it be more of an evolution adapting to new use cases like IoT, Machine Learning and Deep Learning (TensorFlow)?
Hadoop meets Agile! - An Agile Big Data ModelUwe Printz
Big Data projects are a struggle, not only on the technical side but also on the organizational side. In this talk the author shares his experience and opinions from almost 5 years of Big Data projects and develops an Agile Big Data Model which reflects his ideas on how Big Data projects can be successful, even in large companies.
Talk held at the crossover meetup of the "Agile Stammtisch Rhein-Main" and the "Hadoop & Spark User Group Rhein-Main" at codecentric AG on 31.01.2017.
This talk takes you on a rollercoaster ride through Hadoop 2 and explains the most significant changes and components.
The talk has been held on the JavaLand conference in Brühl, Germany on 25.03.2014.
Agenda:
- Welcome Office
- YARN Land
- HDFS 2 Land
- YARN App Land
- Enterprise Land
Hadoop Operations - Best practices from the fieldUwe Printz
Talk about Hadoop Operations and Best Practices for building and maintaining Hadoop cluster.
Talk was held at the data2day conference in Karlsruhe, Germany on 27.11.2014
Supporting Financial Services with a More Flexible Approach to Big DataWANdisco Plc
In this webinar, WANdisco and Hortonworks look at three examples of using 'Big Data' to get a more comprehensive view of customer behavior and activity in the banking and insurance industries. Then we'll pull out the common threads from these examples, and see how a flexible next-generation Hadoop architecture lets you get a step up on improving your business performance. Join us to learn:
- How to leverage data from across an entire global enterprise
- How to analyze a wide variety of structured and unstructured data to get quick, meaningful answers to critical questions
- What industry leaders have put in place
AWS Summit Sydney 2014 | Secure Hadoop as a Service - Session Sponsored by IntelAmazon Web Services
Intel is contributing to a common security framework for Apache Hadoop, in the form of Project Rhino, which enables Hadoop to run workloads without compromising performance or security. Join this session to learn how your enterprise can take advantage of the security capabilities in the Intel Data Platform running on AWS to analyze data while ensuring technical safeguards that help you remain in compliance.
Hadoop and WANdisco: The Future of Big DataWANdisco Plc
View the webinar recording here... http://youtu.be/O1pgMMyoJg0
Who: WANdisco CEO, David Richards, and core creaters of Apache Hadoop, Dr. Konstantin Shvachko and Jagane Sundare.
What: WANdisco recently acquired AltoStor, a pioneering firm with deep expertise in the multi-billion dollar Big Data market.
New to the WANdisco team are the Hadoop core creaters, Dr. Konstantin Shvachko and Jagane Sundare. They will cover the the acquisition and reveal how WANdisco's active-active replication technology will change the game of Big Data for the enterprise in 2013.
Hadoop, a proven open source Big Data technolgoy, is the backbone of Yahoo, Facebook, Netflix, Amazon, Ebay and many of the world's largest databases.
When: Tuesday, December 11th at 10am PST (1pm EST).
Why: In this 30-minute webinar you’ll learn:
The staggering, cross-industry growth of Hadoop in the enterprise
How Hadoop's limitations, including HDFS's single-point of failure, are impacting the productivity of the enterprise
How WANdisco's active-active replication technology will alleviate these issues by adding high-availability to Hadoop, taking a fundamentally different approach to Big Data
View the webinar Q&A on the WANdisco blog here...http://blogs.wandisco.com/2012/12/14/answers-to-questions-from-the-webinar-of-dec-11-2012/
The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using a simple programming model. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Rather than rely on hardware to deliver high-avaiability, the library itself is designed to detect and handle failures at the application layer, so delivering a highly-availabile service on top of a cluster of computers, each of which may be prone to failures.
Keynote: Getting Serious about MySQL and Hadoop at ContinuentContinuent
Lean, mean MySQL and hulking Hadoop clusters may seem like an odd couple, but tying them together is now priority #1 for many MySQL users. This keynote talk on 1st day of this year's Percona Live MySQL Conference & Expo 2014 explores the data management trends spurring integration, how the MySQL community is stepping up, and where the integration may go in the future. Robert Hodges, CEO at Continuent, outlines how work at Continuent fits into this picture and how we are contributing to the MySQL community response to Hadoop.
This talk gives an introduction into Hadoop 2 and YARN. Then the changes for MapReduce 2 are explained. Finally Tez and Spark are explained and compared in detail.
The talk has been held on the Parallel 2014 conference in Karlsruhe, Germany on 06.05.2014.
Agenda:
- Introduction to Hadoop 2
- MapReduce 2
- Tez, Hive & Stinger Initiative
- Spark
In this webinar, we'll:
-Examine the key drivers and use cases for High Availability, performance and scalability for Apache Hadoop.
-Walk through an overview of reference architecture for a Non-Stop Hadoop implementation.
-Show how you can get started with Non-Stop Hadoop with the Hortonworks Data Platform.
Big Data Meets HPC - Exploiting HPC Technologies for Accelerating Big Data Pr...inside-BigData.com
In this deck from the Stanford HPC Conference, DK Panda from Ohio State University presents: Big Data Meets HPC - Exploiting HPC Technologies for Accelerating Big Data Processing.
"This talk will provide an overview of challenges in accelerating Hadoop, Spark and Memcached on modern HPC clusters. An overview of RDMA-based designs for Hadoop (HDFS, MapReduce, RPC and HBase), Spark, Memcached, Swift, and Kafka using native RDMA support for InfiniBand and RoCE will be presented. Enhanced designs for these components to exploit NVM-based in-memory technology and parallel file systems (such as Lustre) will also be presented. Benefits of these designs on various cluster configurations using the publicly available RDMA-enabled packages from the OSU HiBD project (http://hibd.cse.ohio-state.edu) will be shown."
Watch the video: https://youtu.be/iLTYkTandEA
Learn more: http://web.cse.ohio-state.edu/~panda.2/
and
http://hpcadvisorycouncil.com
Sign up for our insideHPC Newsletter: http://insidehpc.com/newsletter
The slides are created for the "Hadoop User Group Vienna", a Meetup that gathers Hadoop users in Vienna on September 6, 2017. The content of the slides correspond to the first talk, which discussed the concepts, terminology and disaster recovery capabilities in the Hadoop ecosystem.
Deep learning has become widespread as frameworks such as TensorFlow and PyTorch have made it easy to onboard machine learning applications. However, while it is easy to start developing with these frameworks on your local developer machine, scaling up a model to run on a cluster and train on huge datasets is still challenging. Code and dependencies have to be copied to every machine and defining the cluster configurations is tedious and error-prone. In addition, troubleshooting errors and aggregating logs is difficult. Ad-hoc solutions also lack resource guarantees, isolation from other jobs, and fault tolerance.
To solve these problems and make scaling deep learning easy, we have made several enhancements to Hadoop and built an open-source deep learning platform called TonY. In this talk, Anthony and Keqiu will discuss new Hadoop features useful for deep learning, such as GPU resource support, and deep dive into TonY, which lets you run deep learning programs natively on Hadoop. We will discuss TonY's architecture and how it allows users to manage their deep learning jobs, acting as a portal from which to launch notebooks, monitor jobs, and visualize training results.
From: DataWorks Summit Munich 2017 - 20170406
While you could be tempted assuming data is already safe in a single Hadoop cluster, in practice you have to plan for more. Questions like: "What happens if the entire datacenter fails?, or "How do I recover into a consistent state of data, so that applications can continue to run?" are not a all trivial to answer for Hadoop. Did you know that HDFS snapshots are handling open files not as immutable? Or that HBase snapshots are executed asynchronously across servers and therefore cannot guarantee atomicity for cross region updates (which includes tables)? There is no unified and coherent data backup strategy, nor is there tooling available for many of the included components to build such a strategy. The Hadoop distributions largely avoid this topic as most customers are still in the "single use-case" or PoC phase, where data governance as far as backup and disaster recovery (BDR) is concerned are not (yet) important. This talk first is introducing you to the overarching issue and difficulties of backup and data safety, looking at each of the many components in Hadoop, including HDFS, HBase, YARN, Oozie, the management components and so on, to finally show you a viable approach using built-in tools. You will also learn not to take this topic lightheartedly and what is needed to implement and guarantee a continuous operation of Hadoop cluster based solutions.
Apache Hadoop software library is essentially a framework that
allows for the distributed processing of large data-sets across
clusters of computers using a simple programming model.
Supporting Financial Services with a More Flexible Approach to Big DataWANdisco Plc
In this webinar, WANdisco and Hortonworks look at three examples of using 'Big Data' to get a more comprehensive view of customer behavior and activity in the banking and insurance industries. Then we'll pull out the common threads from these examples, and see how a flexible next-generation Hadoop architecture lets you get a step up on improving your business performance. Join us to learn:
- How to leverage data from across an entire global enterprise
- How to analyze a wide variety of structured and unstructured data to get quick, meaningful answers to critical questions
- What industry leaders have put in place
AWS Summit Sydney 2014 | Secure Hadoop as a Service - Session Sponsored by IntelAmazon Web Services
Intel is contributing to a common security framework for Apache Hadoop, in the form of Project Rhino, which enables Hadoop to run workloads without compromising performance or security. Join this session to learn how your enterprise can take advantage of the security capabilities in the Intel Data Platform running on AWS to analyze data while ensuring technical safeguards that help you remain in compliance.
Hadoop and WANdisco: The Future of Big DataWANdisco Plc
View the webinar recording here... http://youtu.be/O1pgMMyoJg0
Who: WANdisco CEO, David Richards, and core creaters of Apache Hadoop, Dr. Konstantin Shvachko and Jagane Sundare.
What: WANdisco recently acquired AltoStor, a pioneering firm with deep expertise in the multi-billion dollar Big Data market.
New to the WANdisco team are the Hadoop core creaters, Dr. Konstantin Shvachko and Jagane Sundare. They will cover the the acquisition and reveal how WANdisco's active-active replication technology will change the game of Big Data for the enterprise in 2013.
Hadoop, a proven open source Big Data technolgoy, is the backbone of Yahoo, Facebook, Netflix, Amazon, Ebay and many of the world's largest databases.
When: Tuesday, December 11th at 10am PST (1pm EST).
Why: In this 30-minute webinar you’ll learn:
The staggering, cross-industry growth of Hadoop in the enterprise
How Hadoop's limitations, including HDFS's single-point of failure, are impacting the productivity of the enterprise
How WANdisco's active-active replication technology will alleviate these issues by adding high-availability to Hadoop, taking a fundamentally different approach to Big Data
View the webinar Q&A on the WANdisco blog here...http://blogs.wandisco.com/2012/12/14/answers-to-questions-from-the-webinar-of-dec-11-2012/
The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using a simple programming model. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Rather than rely on hardware to deliver high-avaiability, the library itself is designed to detect and handle failures at the application layer, so delivering a highly-availabile service on top of a cluster of computers, each of which may be prone to failures.
Keynote: Getting Serious about MySQL and Hadoop at ContinuentContinuent
Lean, mean MySQL and hulking Hadoop clusters may seem like an odd couple, but tying them together is now priority #1 for many MySQL users. This keynote talk on 1st day of this year's Percona Live MySQL Conference & Expo 2014 explores the data management trends spurring integration, how the MySQL community is stepping up, and where the integration may go in the future. Robert Hodges, CEO at Continuent, outlines how work at Continuent fits into this picture and how we are contributing to the MySQL community response to Hadoop.
This talk gives an introduction into Hadoop 2 and YARN. Then the changes for MapReduce 2 are explained. Finally Tez and Spark are explained and compared in detail.
The talk has been held on the Parallel 2014 conference in Karlsruhe, Germany on 06.05.2014.
Agenda:
- Introduction to Hadoop 2
- MapReduce 2
- Tez, Hive & Stinger Initiative
- Spark
In this webinar, we'll:
-Examine the key drivers and use cases for High Availability, performance and scalability for Apache Hadoop.
-Walk through an overview of reference architecture for a Non-Stop Hadoop implementation.
-Show how you can get started with Non-Stop Hadoop with the Hortonworks Data Platform.
Big Data Meets HPC - Exploiting HPC Technologies for Accelerating Big Data Pr...inside-BigData.com
In this deck from the Stanford HPC Conference, DK Panda from Ohio State University presents: Big Data Meets HPC - Exploiting HPC Technologies for Accelerating Big Data Processing.
"This talk will provide an overview of challenges in accelerating Hadoop, Spark and Memcached on modern HPC clusters. An overview of RDMA-based designs for Hadoop (HDFS, MapReduce, RPC and HBase), Spark, Memcached, Swift, and Kafka using native RDMA support for InfiniBand and RoCE will be presented. Enhanced designs for these components to exploit NVM-based in-memory technology and parallel file systems (such as Lustre) will also be presented. Benefits of these designs on various cluster configurations using the publicly available RDMA-enabled packages from the OSU HiBD project (http://hibd.cse.ohio-state.edu) will be shown."
Watch the video: https://youtu.be/iLTYkTandEA
Learn more: http://web.cse.ohio-state.edu/~panda.2/
and
http://hpcadvisorycouncil.com
Sign up for our insideHPC Newsletter: http://insidehpc.com/newsletter
The slides are created for the "Hadoop User Group Vienna", a Meetup that gathers Hadoop users in Vienna on September 6, 2017. The content of the slides correspond to the first talk, which discussed the concepts, terminology and disaster recovery capabilities in the Hadoop ecosystem.
Deep learning has become widespread as frameworks such as TensorFlow and PyTorch have made it easy to onboard machine learning applications. However, while it is easy to start developing with these frameworks on your local developer machine, scaling up a model to run on a cluster and train on huge datasets is still challenging. Code and dependencies have to be copied to every machine and defining the cluster configurations is tedious and error-prone. In addition, troubleshooting errors and aggregating logs is difficult. Ad-hoc solutions also lack resource guarantees, isolation from other jobs, and fault tolerance.
To solve these problems and make scaling deep learning easy, we have made several enhancements to Hadoop and built an open-source deep learning platform called TonY. In this talk, Anthony and Keqiu will discuss new Hadoop features useful for deep learning, such as GPU resource support, and deep dive into TonY, which lets you run deep learning programs natively on Hadoop. We will discuss TonY's architecture and how it allows users to manage their deep learning jobs, acting as a portal from which to launch notebooks, monitor jobs, and visualize training results.
From: DataWorks Summit Munich 2017 - 20170406
While you could be tempted assuming data is already safe in a single Hadoop cluster, in practice you have to plan for more. Questions like: "What happens if the entire datacenter fails?, or "How do I recover into a consistent state of data, so that applications can continue to run?" are not a all trivial to answer for Hadoop. Did you know that HDFS snapshots are handling open files not as immutable? Or that HBase snapshots are executed asynchronously across servers and therefore cannot guarantee atomicity for cross region updates (which includes tables)? There is no unified and coherent data backup strategy, nor is there tooling available for many of the included components to build such a strategy. The Hadoop distributions largely avoid this topic as most customers are still in the "single use-case" or PoC phase, where data governance as far as backup and disaster recovery (BDR) is concerned are not (yet) important. This talk first is introducing you to the overarching issue and difficulties of backup and data safety, looking at each of the many components in Hadoop, including HDFS, HBase, YARN, Oozie, the management components and so on, to finally show you a viable approach using built-in tools. You will also learn not to take this topic lightheartedly and what is needed to implement and guarantee a continuous operation of Hadoop cluster based solutions.
Apache Hadoop software library is essentially a framework that
allows for the distributed processing of large data-sets across
clusters of computers using a simple programming model.
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The current major release, Hadoop 2.0 offers several significant HDFS improvements including new append-pipeline, federation, wire compatibility, NameNode HA, Snapshots, and performance improvements. We describe how to take advantages of these new features and their benefits. We cover some architectural improvements in detail such as HA, Federation and Snapshots. The second half of the talk describes the current features that are under development for the next HDFS release. This includes much needed data management features such as backup and Disaster Recovery. We add support for different classes of storage devices such as SSDs and open interfaces such as NFS; together these extend HDFS as a more general storage system. Hadoop has recently been extended to run first-class on Windows which expands its enterprise reach and allows integration with the rich tool-set available on Windows. As with every release we will continue improvements to performance, diagnosability and manageability of HDFS. To conclude, we discuss the reliability, the state of HDFS adoption, and some of the misconceptions and myths about HDFS.
Tcloud Computing Hadoop Family and Ecosystem Service 2013.Q2tcloudcomputing-tw
The presentation is designed for those interested in Hadoop technology, and can enhance your knowledge in Hadoop, such as community history, current development status, features of services, distributed computing framework and scenario of big data development in Enterprise.
Fundamentals of Big Data, Hadoop project design and case study or Use case
General planning consideration and most necessaries in Hadoop ecosystem and Hadoop projects
This will provide the basis for choosing the right Hadoop implementation, Hadoop technologies integration, adoption and creating an infrastructure.
Building applications using Apache Hadoop with a use-case of WI-FI log analysis has real life example.
Similar to Apache hadoop: POSH Meetup Palo Alto, CA April 2014 (20)
Techniques to optimize the pagerank algorithm usually fall in two categories. One is to try reducing the work per iteration, and the other is to try reducing the number of iterations. These goals are often at odds with one another. Skipping computation on vertices which have already converged has the potential to save iteration time. Skipping in-identical vertices, with the same in-links, helps reduce duplicate computations and thus could help reduce iteration time. Road networks often have chains which can be short-circuited before pagerank computation to improve performance. Final ranks of chain nodes can be easily calculated. This could reduce both the iteration time, and the number of iterations. If a graph has no dangling nodes, pagerank of each strongly connected component can be computed in topological order. This could help reduce the iteration time, no. of iterations, and also enable multi-iteration concurrency in pagerank computation. The combination of all of the above methods is the STICD algorithm. [sticd] For dynamic graphs, unchanged components whose ranks are unaffected can be skipped altogether.
Data Centers - Striving Within A Narrow Range - Research Report - MCG - May 2...pchutichetpong
M Capital Group (“MCG”) expects to see demand and the changing evolution of supply, facilitated through institutional investment rotation out of offices and into work from home (“WFH”), while the ever-expanding need for data storage as global internet usage expands, with experts predicting 5.3 billion users by 2023. These market factors will be underpinned by technological changes, such as progressing cloud services and edge sites, allowing the industry to see strong expected annual growth of 13% over the next 4 years.
Whilst competitive headwinds remain, represented through the recent second bankruptcy filing of Sungard, which blames “COVID-19 and other macroeconomic trends including delayed customer spending decisions, insourcing and reductions in IT spending, energy inflation and reduction in demand for certain services”, the industry has seen key adjustments, where MCG believes that engineering cost management and technological innovation will be paramount to success.
MCG reports that the more favorable market conditions expected over the next few years, helped by the winding down of pandemic restrictions and a hybrid working environment will be driving market momentum forward. The continuous injection of capital by alternative investment firms, as well as the growing infrastructural investment from cloud service providers and social media companies, whose revenues are expected to grow over 3.6x larger by value in 2026, will likely help propel center provision and innovation. These factors paint a promising picture for the industry players that offset rising input costs and adapt to new technologies.
According to M Capital Group: “Specifically, the long-term cost-saving opportunities available from the rise of remote managing will likely aid value growth for the industry. Through margin optimization and further availability of capital for reinvestment, strong players will maintain their competitive foothold, while weaker players exit the market to balance supply and demand.”
19. Hadoop Distributed File System
Data Model:
• Data is organized into files and directories
• Files are divided into uniformly-sized blocks and
distributed across cluster nodes
• Blocks are replicated to handle hardware failure
• Filesystem keeps checksums of data for corruption
detection and recovery
• Read requests are always served from closest replica
• Not strictly POSIX-compliant
32. • Programming model processing list of key/value pairs
• Map function: processes input key/value pairs and produces set of
intermediate key/value pairs.
• Reduce function: merges all intermediate values associated with the same
intermediate key and produces output key/value pairs.
Map-Reduce Programming Model
Input
(k1, v1)
Output
K2, List(V3)
Intermediate
Output
List (K2, V2)
Reduce
Sort or Group by K2
(K2, List(V2))
Map
33. Application Writer Specifies:
• Map and Reduce classes
• Input data on HDFS
• Input/Output format classes (optional)
Workflow:
• Input phase generates a number of logical FileSplits from input files
• One Map task is created per logical file split
• Each Map task loads Map class and executes map function to transform
input kv-pairs into a new set of kv-pairs
• Record reader class supplied part of InputFormat reads a input record
as k-v pair
• Map output keys are stored on local disk in sorted partitions, one per
task
• One invocation of map function per k-v pair from an associated input
split
• Each Reduce task fetches map output (from its associated partition) as
soon as map task finishes its processing
• Map outputs are merged
• One invocation of reduce function per distinct key and its associated
list of values
• Output k-v pairs are stored on HDFS, one file per reduce task
• Framework handles task scheduling and recovery.
Km+1…N
Output
Part-0
Output
Part-1
Input
Split 0
Input HDFS File
K1..m K1..mK1..m Km+1…N Km+1…N
Sorted Partitions
Map 0 Map 1 Map 2
Sorted Partitions Sorted Partitions
Reduce 0 Reduce 1
Shuffle
Input
Split 2
Input
Split 1
Merge & Sort Merge & Sort
Parallel Execution Model for Map-Reduce
Km+1…N