Tag: event

Feed: Planet MySQL; Author: MySQL High Availability; Data nodes are the distributed, sharded storage core of MySQL NDB Cluster. Its data is usually accessed by MySQL Servers (also called SQL nodes in NDB parlance). The MySQL servers each have their own transactional Data Dictionary (DD) where all the metadata describing tables, databases, tablespaces, logfile groups, foreign keys, and other objects are stored for use by MySQL server. The MySQL server DD, introduced in version 8.0, has enabled improvements such as atomic and crash-safe DDL and the INFORMATION_SCHEMA implementation among other things. At the storage engine level, NDB has its own ... Read More

Feed: Redis Labs. Author: Jane Paek. A little snow couldn’t stop the Redis community from coming out in force to our first Redis Day of the year in Seattle. Held on January 13–14 at the Hyatt Regency, Redis Day Seattle brought together some 300 developers, engineers, software architects, programmers, and business professionals for intensive training, thought leadership, and networking. On day one, Redis users from beginners to experts packed the conference room for a full schedule of hands-on training covering everything from Redis basics to Redis Streaming Architectures, Probabilistic Data Structures, and RediSearch. The following day, attendees heard from representatives of ... Read More

Feed: Planet MySQL; Author: Yves Trudeau; As the second part of the earlier post Give Love to Your SSDs – Reduce innodb_io_capacity_max! we wanted to put together some concepts on how InnoDB flushing works in recent Percona Server for MySQL versions (8.0.x prior to 8.0.19, or 5.7.x). It is important to understand this aspect of InnoDB in order to tune it correctly. This post is a bit long and complex as it goes very deep into some InnoDB internals.InnoDB internally handles flush operations in the background to remove dirty pages from the buffer pool. A dirty page is a page ... Read More

Feed: Planet MySQL; Author: MySQL High Availability; In part 1, we took a brief, high-level look at the various protocols and mechanisms used to keep the Data Dictionary (DD) of MySQL servers connected to a MySQL Cluster in synchronization with each other and with the NDB Dictionary. More specifically, we explored the problems with the implementation of user-triggered synchronization in the NDB Cluster 7.x versions. These concerns are addressed in NDB Cluster 8.0 through a new feature: Automatic Schema Synchronization (or auto schema sync for short). A new component called Metadata Change Monitor has been introduced to detect any NDB ... Read More

Feed: Planet PostgreSQL. It’s been exactly half a year since the last major release of the pgwatch2 Open Source PostgreSQL monitoring tool, and I’m glad to announce that another huge set of useful features and improvements have found their way into the pgwatch2 code repository! The new version is incremented to v1.7 and, continuing the naming tradition, I’m also calling it “Feature Pack 6” as it’s mostly about new features mixed with some bugfixes, although it’s been surprisingly error-free for the last year. Note that listed below are only the most significant changes since last major version, v1.6, so please ... Read More

Feed: AWS Architecture Blog. AWS re:Invent 2019 was a whirlwind of activity, especially in the Expo Hall, where the AWS team spent four days filming 12 live This is My Architecture videos for Twitch. Watch one a day for the next two weeks…or eat them all in one sitting. Whichever you do, you’re guaranteed to learn something new.Accolade Discover security and operational excellence in healthcare with Accolade. AWS Solution Builders Get multi-region Availability with Amazon DynamoDB, Amazon S3, and Amazon Cognito. EcoFit EcoFit offers responsive, AWS Lambda-based microservices at scale. Splunk Splunk explains data at scale by decoupling compute and ... Read More

Feed: Puppet.com Blog RSS Feed. Author: ; *Editor's note: We invite you to join us at Puppetize PDX this 9-10 October 2019. It's a beginner-friendly event, complete with training opportunities.*So you’re ready to get started with Puppet and you don’t know where to begin. That’s alright, because this blog post is meant to point you in the right direction. My most common recommendation for complete newbies is to check out learn.puppet.com and run through a few of the self-paced learning videos that explain what Puppet is and how it works. Once you’ve gotten the hang of that, the Learning VM ... Read More

Feed: Planet PostgreSQL. One of the great things about PostgreSQL is its reliability: it is very stable and typically “just works.” However, there are certain things that can happen in the environment that PostgreSQL is deployed in that can affect its uptime, such as:The database storage disk fails or some other hardware failure occurs The network on which the database resides becomes unreachable The host operating system becomes unstable and crashes A key database file becomes corrupted A data center is lost There may also be downtime events that are due to the normal case of operations, such as performing ... Read More

Feed: The Connector by Workato. Author: Katharine Marais; Novel fintech like cryptocurrency and blockchain have disrupted and fundamentally reimagined such previously eminent and staid realities such as the government monopoly on currency-creation. As fintech has risen to prominence, an unlikely mascot has emerged to represent the convenience enabled by novel financial technologies; mobile banking ads have portrayed ballerinas paying for goods while performing- logging into Visa or Chase apps from the wings, or hilariously, paying for goods while doing a “grand jete between two grand pianos,” in one tongue-in-cheek commercial by Chase. They portray a shared sentiment: that we are ... Read More

Feed: Liquid Web. Author: Jay Patrick; If your design agency works online in any capacity, then there is a good chance that you have had at least a few clients come to you with questions about web hosting options. After all, now that you have designed something for them, they need a place to host it, right? There is an equally high chance that, when they approached you, you were uncertain what to tell them. So why become a hosting reseller? Becoming a hosting reseller helps provide you with a source of recurring revenue, and will also enhance your reputation ... Read More