Tag: constraints

Feed: Cloudera Engineering Blog » Hadoop. Author: Jon Zuanich. This is a guest post provided by Booz Allen Hamilton data analysis consultant, Aaron Cordova.  Aaron specializes in large-scale distributed data processing systems. Working within the U.S. federal government arena provides plenty of opportunities to encounter large-scale data analysis. Projects ranging from massive health studies to high-velocity network security events to new sources of imagery and video represent a huge increase in the amount of data that must be not only stored but processed quickly and efficiently. These challenges are at once a daunting and exciting chance to turn data into ... Read More

Feed: Big Data Made Simple - One source. Many perspectives.. Author: Baiju NT. Chatbots have already left a mark for the way they have upturned our perceptions on mobile technology. In fact, chatbots are instant messaging apps that allow interaction with third-party services from within the messaging interface. They are one of the many platforms of conversational technology which also include smart speakers and wearables to name a few. Conversational technology has the strong potential to transform sectors like ecommerce, banking, healthcare, etc. This wonder technology has created such a furore that most companies look forward to incorporate it by ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Christophe Bisciglia. There’s been a lot of buzz about Apache Hadoop lately. Just the other day, some of our friends at Yahoo! reclaimed the terasort record from Google using Hadoop, and the folks at Facebook let on that they ingest 15 terabytes a day into their 2.5 petabyte Hadoop-powered data warehouse. But many people still find themselves wondering just how all this works, and what it means to them. We get a lot of common questions while working with customers, speaking at conferences, and teaching new users about Hadoop. If you, or folks ... Read More

Feed: Percona Database Performance Blog. Author: Kenny Gryp. Kenny Gryp and Ramesh Sivaraman  | June 23, 2017 |  Posted In: Group Replication, High-availability, InnoDB, Percona XtraDB Cluster PREVIOUS POST Thank you for attending the Wednesday, June 21, 2017 high availability webinar titled Percona XtraDB Cluster, Galera Cluster, MySQL Group Replication. In this blog, I will provide answers to the Q & A for that webinar. You can find the slides and a recording of the webinar here. Is there a minimum MySQL server version for Group Replication? MySQL Group Replication is GA since MySQL Community 5.7.17. This is the lowest version that you ... Read More

Feed: Neo4j Graph Database. Author: Rachel Howard. By Dippy Aggarwal, PhD Candidate, University of Cincinnati | June 22, 2017  Editor’s Note: This presentation was given by Dippy Aggarwal at GraphConnect San Francisco in October 2016.Presentation SummaryContainer orchestration for multiple containers across a fleet of machines has the potential to solve issues across the range of scaling, replication, fault tolerance and container communication.In this GraphConnect presentation, Dippy Aggarwal walks you through the basics of Docker containerization and why Docker alone isn’t enough to handle today’s challenges of scale and multi-cluster deployments. The three most popular container orchestration tools she examines include ... Read More

Feed: Planet MySQL. Author: MariaDB. The 2.1.3 GA release of MariaDB MaxScale, introduces the following key features for the secure setup of MaxScale Binlog Server: The MaxScale binlog server can optionally encrypt the events received from the master server: the setup requires a MariaDB (from 10.1.7) master server with encryption active and the mariadb10-compatibility=On option set in maxscale.cnf. This way both master and MaxScale will have encrypted events stored in the binlog files. How does the Binary log encryption work in MariaDB Server and in MaxScale? Let’s look at MariaDB Server 10.1 or 10.2 implementation first. The encryption is related to ... Read More

Feed: Microsoft Azure Blog. Author: Lior Kamrat. These days, I try to be involved in any Containers, DevOps, Automation, etc. related discussion. Part of my role is to consult my customers around how to architect their containers platform and orchestration tools in Azure. But what happens when you have a chance to do something cool like architecting a solution which involves Mesosphere DC/OS, Azure Container Service, Azure Container Registry, Docker, and VMware vSphere?! Let’s find out… In this first multiple-part blog post series I will describe the motivation behind it, the requirements and constraints, architecture, and of course the “how ... Read More

Feed: Cloudera Engineering Blog » CDH. Author: Justin Kestelyn. Big Industries, Cloudera systems integration and reseller partner for Belgium and Luxembourg, has developed an integration of Apache Mesos and CDH that can be deployed and managed through Cloudera Manager. In this post, Big Industries’ Rob Gibbon explains the benefits of deploying Mesos on your cluster and walks you through the process of setting it up. [Editor’s Note: Mesos integration is not currently supported by Cloudera, thus the setup described below is not recommended for production use.] Apache Mesos is a distributed, generic grid workload manager. Similar to YARN in Apache ... Read More

Feed: Planet PostgreSQL. Business logic is supposed to be the part of the application where you deal with customer or user facing decisions and computations. It is often argued that this part should be well separated from the rest of the technical infrastructure of your code. Of course, SQL and relational database design is meant to support your business cases (or user stories), so then we can ask ourselves if SQL should be part of your business logic implementation. Or actually, how much of your business logic should be SQL? As the database model is meant to support your business ... Read More

Feed: Cloudera Engineering Blog » CDH. Author: Justin Kestelyn. This overview will cover the basic tarball setup for your Mac. If you’re an engineer building applications on CDH and becoming familiar with all the rich features for designing the next big solution, it becomes essential to have a native Mac OSX install. Sure, you may argue that your MBP with its four-core, hyper-threaded i7, SSD, 16GB of DDR3 memory are sufficient for spinning up a VM, and in most instances — such as using a VM for a quick demo — you’re right.  However, when experimenting with a slightly heavier ... Read More