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Introduction to Windows Azure HDInsight Jon Tupitza Principal, Solution Architect

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Presentation on theme: "Introduction to Windows Azure HDInsight Jon Tupitza Principal, Solution Architect"— Presentation transcript:

1 Introduction to Windows Azure HDInsight Jon Tupitza Principal, Solution Architect

2 2 © 2014 JT IT Consulting, LLC Agenda What is Big Data? …and how does it effect our business? What is Hadoop? …and how does it work? What is Windows Azure HDInsight? …and how does it fit into the Microsoft BI Ecosystem? What tools are used to work with Hadoop & HDInsight? How do I get started using HDInsight?

3 3 © 2014 JT IT Consulting, LLC What is Big Data? Explosion in social media, mobile apps, digital sensors, RFID, GPS, and more have caused exponential data growth. Volume (Size) Traditionally BI has sourced structured data, but now insight must be extracted from unstructured data like large text blobs, digital media, sensor data, etc. Variety (Structure) Sources like Social Networking and Sensor signals create data at a tremendous rate; making it a challenge to capture, store, and analyze that data in a timely or economical manner. Velocity (Speed) Datasets that, due to their size and complexity, are difficult to store, query, and manage using existing data management tools or data processing applications.

4 4 © 2014 JT IT Consulting, LLC Key Trends Causing Data Explosion Device Explosion Ubiquitous Connection Social Networks Sensor Networks Cheap Storage Inexpensive Computing 5.5 Billion + devices with over 70% of the global population using them. Web traffic to generate over 1.6 Zettabytes of data by 2015 Over 2 Billion users worldwide Over 10 Billion networked sensors In MB cost $1.00 Today 1MB costs.01 cent 1980: 10 MIPS/Sec 2005: 10M MIPS/Sec

5 5 © 2014 JT IT Consulting, LLC Big Data is Creating Big Opportunities! Big Data technologies are a top priority for most institutions: both corporate and government Currently, 49% of CEO’s and CIO’s claim they are undertaking Big Data projects Software estimated to experience 34% YOY compound growth rate: 4.6B by 2015 Services estimate to experience 39% YOY compound growth rate: 6.5B by 2015

6 6 © 2014 JT IT Consulting, LLC Uses for Big Data technologies Data Warehousing: Operational Data: New User Registrations, Purchasing, New Product offering Data Exhaust: by- products like log files have low density of useful data but the data they do contain is very valuable if we can extract it at a low cost and in a timely manner. Devices and the Internet of things: Trillions of Internet- connected devices GPS data Cell phone data Automotive engine performance data Collective Intelligence Social Analytics: What is the social sentiment for my product(s)? Live Data Feed/Search: How do I optimize my services based on weather or traffic patterns? How do I build a recommendations engine (Mahout)? Advanced Analytics: How do I better predict future outcomes?

7 7 © 2014 JT IT Consulting, LLC What is Hadoop and How does it Work? Hadoop Distributed Architecture: Storage Layer (HDFS) Programming Layer (Map/Reduce) Schema on Read vs. Schema on Write Traditionally we have always brought the data to the schema and code Hadoop sends the schema and the code to the data We don’t have to pay the cost or live with the limitations of moving the data: IOPs, Network traffic. Task Tracker Name Node Data Node Map/Reduce Layer HDFS Layer Implements a Divide and Conquer Algorithm to Achieve Greater Parallelism

8 8 © 2014 JT IT Consulting, LLC HDFS (Hadoop Distributed Files System) Fault Tolerant: Data is distributed across each Data Node in the cluster (like RAID 5). 3 copies of the data is stored in case of storage failures. Data faults can be quickly detected and repaired due to data redundancy. High Throughput Favors batch over interactive operations to support streaming large datasets. Data files are written once and then closed; never to be updated. Supports data locality. HDFS facilitates moving the application code (query) to the data rather than moving the data to the application (schema on read).

9 9 © 2014 JT IT Consulting, LLC Map/Reduce Like the “Assembly” language of Hadoop / Big Data: very low level Users can interface with Hadoop using higher-level languages like Hive an Pig Schema on Read; not Schema on Write Moving the Code to the Data: First, Store the data Second, (Map function) move the programming to the data; load the code on each machine where the data already resides. Third, (Reduce function) collects statistics back from each of the machines.

10 10 © 2014 JT IT Consulting, LLC Map/Reduce: Logical Process KeyValue AX=2, Y=3 BX=1, Z=2 CX=3 AY=1, Z=4 KeyValue EY=3 AX=1, Z=2 AZ=5 DY=2, Z=1 KeyValue AX=2, Y=3 AY=1, Z=4 KeyValue AX=1, Z=2 AZ=5 KeyValue AX=3, Y=4, Z=11 Map Reduce Map 1. SELECT WHERE Key=A 2. SUM Values of Each Property The MAP function runs on each data node, extracting data that matches the query. The REDUCE function runs on one node, combining the results from all the MAP components into the final results set.

11 11 © 2014 JT IT Consulting, LLC Yet Another Resource Manager (YARN) Second generation Hadoop Extends capabilities beyond Map/Reduce; beyond batch processing Makes good on the promise of (near) real-time Big Data processing Node Manager Resource Manager App Master Container Node Manager App Master Container Node Manager Container Client

12 12 © 2014 JT IT Consulting, LLC Data Movement and Query Processing RDBMS require a schema to be applied when the data is written: The data is transformed to accommodate the schema Some information hidden in the data may be lost at write-time Hadoop/HDInsight applies a schema only when the data is read: The schema doesn’t change the structure of the underlying data The data is stored in its original (raw) format so that all hidden information is retained RDBMS perform query processing in a central location: Data is moved from storage to a central location for processing More central processing capacity is required to move data and execute the query Hadoop performs query processing at each storage node: Data doesn’t need to be moved across the network for processing Only a fraction of the central processing capacity is required to execute the query

13 13 © 2014 JT IT Consulting, LLC Major Differences: RDBMS vs. Big Data FeatureRelational DatabaseHadoop / HDInsight Data Types and FormatsStructuredSemi-Structured or Unstructured Data IntegrityHigh: Transactional UpdatesLow: Eventually Consistent SchemaStatic: Required on WriteDynamic: Optional on Read & Write Read and Write PatternFully Repeatable Read/WriteWrite Once; Repeatable Read Storage VolumeGigabytes to TerabytesTerabytes, Petabytes and Beyond ScalabilityScale Up with More Powerful HWScale Out with Additional Servers Data Processing DistributionLimited or NoneDistributed Across Cluster EconomicsExpensive Hardware & SoftwareCommodity Hardware & Open Source Software

14 14 © 2014 JT IT Consulting, LLC Solution Architecture: Big Data or RDBMS? Perhaps you already have the data that contains the information you need, but you can’t analyze it with your existing tools. Or is there a source of data you think will be useful, but you don’t yet know how to collect it, store it, and analyze it? Where will the source data come from? Is it highly structured, in which case you may be able to load it into your existing database or data warehouse and process it there? Or is it semi-structured or unstructured, in which case a Big Data solution that is optimized for textual discovery, categorization, and predictive analysis will be more suitable? What is the format of the data? Is there a huge volume? Does it arrive as a stream or in batches? Is it of high quality or will you need to perform some type of data cleansing and validation of the content? What are the delivery and quality characteristics of the data? If so, do you know where this data will come from, how much it will cost if you have to purchase it, and how reliable this data is? Do you want to combine the results with data from other sources? Will you need to load the data into an existing database or data warehouse, or will you just analyze it and visualize the results separately? Do you want to integrate with an existing BI system?

15 15 © 2014 JT IT Consulting, LLC What is Windows Azure HDInsight? Windows Azure: Microsoft’s online storage and compute services HDInsight: Microsoft’s implementation of Apache Hadoop (Hortonworks Data Platform) as an online service Makes Apache Hadoop readily available to the Windows community Enables Windows Azure subscribers to quickly and easily provision an HDInsight cluster across Windows Azure’s pool of storage and compute resources. Also enables them to quickly de-provision those clusters when they’re not needed. Allows subscribers to continuously store their data for later use. Exposes Apache Hadoop services to the Microsoft programming ecosystem SQL Server: Analysis Services PowerShell and the Cross-platform Command-line tools Visual Studio: CLR (C#, F#, etc.) JavaScript ODBC / JDBC / REST API Excel Self-Service BI (SSBI): PowerQuery, PowerPivot, PowerView and PowerMap

16 16 © 2014 JT IT Consulting, LLC HDInsight Data Storage Azure Blob Storage System: The default storage system for HDInsight Enables you to persist your data even when you’re not running an HDInsight cluster Enables you to leverage your data using HDInsight, Azure SQL Server Database & PDW Name Node Data Node Stream Layer Partition Layer Front End Azure Storage (ASV) Azure Blob Storage Hadoop Distributed File System (HDFS) API

17 17 © 2014 JT IT Consulting, LLC Azure Storage Vault (ASV) The default file system for the HDInsight Service Provides scalable, persistent, sharable, highly-available storage Fast data access for compute nodes residing in the same data center Addressable via: Requires storage key in core-site.xml: keyvaluestring

18 18 © 2014 JT IT Consulting, LLC The Zoo: HDInsight / Hadoop Ecosystem Distributed Processing (Map/Reduce) Distributed Storage (HDFS) Scripting (Pig) Query (Hive ) Metadata (HCatalog) Active Directory (Security) Monitoring & Deployment (System Center) World’s Data (Azure Data Marketplace) Azure Storage Vault (ASV) NoSQL Database (HBase) Pipeline / Workflow (Oozie) Log file Aggregation (Flume) C#, F#.NET JavaScript Stats processing (RHadoop) Graph (Pegasus) Machine Learning (Mahout) Data Integration (ODBC / SQOOP / REST) Business Intelligence (Excel, Power View, SSAS) Relational (SQL Server) Event Driven Processing Parallel Data Warehouse (PDW) / Ploybase

19 19 © 2014 JT IT Consulting, LLC Programming HDInsight Since HDInsight is a service-based implementation, you get immediate access to the tools you need to program against HDInsight/Hadoop Hive, Pig, Sqoop, Mahout, Cascading, Scalding, Scoobi, Pegasus, etc. Existing Ecosystem C#, F# Map/Reduce, LINQ to Hive,.Net Management Clients, etc..NET JavaScript Map/Reduce, Browser-hosted Console, Node.js management clients JavaScript PowerShell, Cross-Platform CLI Tools DevOps/IT Pros:

20 20 © 2014 JT IT Consulting, LLC Microsoft’s Vision Broader Access Easy installation of Hadoop on Windows Simplified programming via integration with.Net and JavaScript. Integration with SQL Server Data Warehouses Enterprise Ready Choice of deployment on Windows Server or Windows Azure Integration with other Windows components like Active Directory and System Center Insights Integrate with the Microsoft BI Stack: SQL Server SharePoint Excel & PowerBI To provide insight to users by activating new types of data… And contribute back to the community distribution of Hadoop.

21 21 © 2014 JT IT Consulting, LLC How do I get started with HDInsight? 1. Create an Windows Azure account (subscription) 2. Create an Azure Storage account 3. Create an Azure Blob Storage node 4. Provision an HDInsight Service cluster 5. Install Windows Azure PowerShell 6. Install Windows Azure HDInsight PowerShell 7. Setup Environment

22 22 © 2014 JT IT Consulting, LLC Architectural Models Standalone Data Analysis & Visualization Experiment with data sources to discover if they provide useful information. Handle data that can’t be processed using existing systems. Data Transfer, Cleansing or ETL Extract and transform data before loading it into existing databases. Categorize, normalize, and extract summary results to remove duplication and redundancy. Data Warehouse or Data Storage Create robust data repositories that are reasonably inexpensive to maintain. Especially useful for storing and managing huge data volumes. Integrate with Existing EDW and BI Systems Integrate Big Data at different levels; EDW, OLAP, Excel PowerPivot. Also, PDW enables querying HDInsight to integrate Big Data with existing dimension & fact data.


24 24 © 2014 JT IT Consulting, LLC Resources PolyBase – David DeWitt us/sqlserver/solutions-technologies/data-warehousing/polybase.aspx us/sqlserver/solutions-technologies/data-warehousing/polybase.aspx PDW Website: technologies/data-warehousing/pdw.aspx parallel-data-warehouse-polybase-demo.aspx parallel-data-warehouse-polybase-demo.aspx

25 25 © 2014 JT IT Consulting, LLC Tools

26 26 © 2014 JT IT Consulting, LLC Place title here HDInsight clusters can be provisioned when needed and then de-provisioned without loosing the data or metadata they have processed. Azure Storage Vault allow you to maintain that state; paying only for the storage and not the cluster(s). Since stream data often arrives in massive bursts, HDInsight can provide a buffer between that data generation and existing data warehouse/BI infrastructures.

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