Tag: cluster

Feed: Planet MySQL; Author: Bernd Ocklin; The MySQL NDB Cluster team works on fundamental redesigns of core parts of NDB architecture. One of these changes is the partial checkpoint algorithm. You can now take full advantage of it when building much larger clusters: NDB 8.0 can use 16 TB data memory per data node for in-memory tables. 3-replica 5 PB clusters can be build with disk data. The new partial checkpoint algorithm executes restarts up to 4x faster, reduces checkpoint times by a factor of 6x in typical set-ups and minimizes cluster’s disk space consumption. In addition the new checkpoints ... Read More

Feed: Puppet.com Blog RSS Feed. Author: ; Kubernetes is gathering a lot of steam in the container ecosystem. Since the project was donated to the CNCF there has been massive adoption from the likes of Microsoft, Oracle and VMware. At Puppet, we’re committed to helping our customers adopt whatever’s next. To that end, we announced Project Blueshift last year and we’re continuing to expand on that promise with our latest set of releases. We have developed a new set of tools to make your adoption of Kubernetes as efficient as possible, covering your full workflow cycle from development to production ... 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: Planet MySQL; Author: Severalnines; With MySQL 8.0 Oracle adopted a new approach to development. Instead of pushing features with major versions, almost every minor MySQL 8.0 version comes with new features or improvements. One of these new features is what we would like to focus on in this blog post.  Historically MySQL did not come with good tools for provisioning. Sure, you had mysqldump, but it is just a logical backup tool, not really suitable for larger environments. MySQL enterprise users could benefit from MySQL Enterprise Backup while community users could use xtrabackup. Neither of those came with a ... Read More

Feed: Puppet.com Blog RSS Feed. Author: ; With Puppetconf 2017 coming to San Francisco in less than a month we thought it might be interesting to take a look at some of the talks we have lined up. In this post we’re focusing on the Moving to the Cloud and Containers track.Moving to the cloudWe have several talks focused on using Puppet with public and private cloud environments.R Tyler Croy from CloudBees will be explaining all about Shipping the Jenkins Project to Azure with Puppet and Kubernetes. This session will tell a fascinating story about embracing modern tooling and migrating ... Read More

Feed: R-bloggers. Author: R on OSM. [This article was first published on R on OSM, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. In our last post on the SKEW index we looked at how good the index was in pricing two standard deviation (2SD) down moves. The answer: not very. But, we conjectured that this poor performance may be due to the fact that it is more accurate at pricing larger moves, ... Read More

Feed: Planet MySQL; Author: MySQL Performance Blog; Percona Server for MySQL 8.0.18 ships all functionality to run Group Replication and InnoDB Cluster setups, so I decided to evaluate how it works and how it compares with Percona XtraDB Cluster in some situations.For this I planned to use three bare metal nodes, SSD drives, and a 10Gb network available for in-between nodes communication, but later I also added tests on three bare metal nodes with NVMe drives and 2x10Gb network cards.To simplify deployment, I created simple ansible scripts.Load DataThe first initial logical step is to load data into an empty cluster, ... Read More

Feed: Planet PostgreSQL. Python 2 has officially completed its life as of Jan 1st, 2020 and the Python 2.x branch will not be maintained anymore. You might be seeing repeated notices of deprecation in log files and terminals like: DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date.DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date.Python 2 had a wonderful life, coming from a ... Read More

Feed: Planet MySQL; Author: MySQL Server Dev Team; As on every release MySQL Shell 8.0.19 includes several bug fixes as well as new features. However, this release includes some significant changes: Fixes for bugs in the schema definition:  Cascading keys in multi-primary mode. Introduction of InnoDB ReplicaSet. These changes required updates to the metadata schema definition, some of which incompatible with previous versions. InnoDB Cluster and ReplicaSet deployments that are created using MySQL Shell 8.0.19 will automatically use the new version of the metadata schema. However, to use InnoDB Cluster deployments created in older Shell versions (8.0.18 or earlier) with ... Read More

Feed: AWS Partner Network (APN) Blog. Author: AWS Admin. By Matt Yellen, Principal Engineer at CloudZeroAnalyzing large datasets can be challenging, especially if you aren’t thinking about certain characteristics of the data and what you’re ultimately looking to achieve. There are a number of factors organizations need to consider in order to build systems that are flexible, affordable, and fast, while at the same time meeting the needs of their end users. For example, you need to understand where your data is coming from, how often it changes, and how the data will be queried. In some cases, a fixed ... Read More