Monitoring
Follower clusters are a ScaleGrid feature that allows you to keep two independent database systems (of the same type) in sync. Unlike cloning or replication, this allows you to maintain an active, point-in-time copy of your production data. This extra cluster, known as a follower cluster, can be leveraged for
Python
In our previous blog posts, we discussed the capabilities and functioning of PostgreSQL Automatic Failover (PAF) by Cluster Labs and Replication Manager (repmgr) by 2ndQuadrant. In the final post of this series, we will review the last solution, Patroni by Zalando, and compare all three at the end so you
Database
Redis, short for Remote Dictionary Server, is a BSD-licensed, open-source in-memory key-value data structure store written in C language by Salvatore Sanfillipo and was first released on May 10, 2009. Depending on how it is configured, Redis can act like a database, a cache or a message broker. It’s
Oracle
PostgreSQL is an open source object-relational database system that has soared in popularity over the past 30 years from its active, loyal, and growing community. For the 2nd year in a row, PostgreSQL has kept the title of #1 fastest growing database in the world according to the DBMS of
Java
Redis Cluster is the native sharding implementation available within Redis that allows you to automatically distribute your data across multiple nodes without having to rely on external tools and utilities. At ScaleGrid, we recently added support for Redis Clusters on our platform through our fully managed Redis hosting plans. In
Clustering
Severalnines has spent the last several years writing blogs and crafting content to help make your open source database solutions highly available. We are fans of highscalability.com and wanted to post some links to our top resources to help readers learn more how to make MySQL, MongoDB, MariaDB, Percona
Database
In this post i wanted to spend sometime on the CAP theorem and clarify some of the confusion that i often see when people associate CAP with scalability without fully understanding the implications that comes with it and the alternative approaches You can read the full article here
Java
A group of top Silicon Valley engineers (ex-Yahoo, Facebook, Google) have come together to launch a new startup called Cloudera. Not yet launched, it intends to help other companies adopt a promising software platform called Hadoop. Hadoop is an open-source software project (written in Java) designed to let developers write
Java
Update:Evaluating Terracotta by Piotr Woloszyn. Nice writeup that covers resilience, failover, DB persistence, Distributed caching implementation, OS/Platform restrictions, Ease of implementation, Hardware requirements, Performance, Support package, Code stability, partitioning, Transactional, Replication and consistency. Terracotta is Network Attached Memory (NAM) for Java VMs. It provides up to a terabyte
Product
The new version of a8cjdbc finished some limitations. Now Clobs and Blobs are supported, and some fixes using binary data. The version was also fully tested with Postgres and mySQL. Since Version 1.3 there is also a free trail version for download available. Check it out and test yourself.
Product
The new version of a8cjdbc finished some limitations. Now Clobs and Blobs are supported, and some fixes using binary data. The version was also fully tested with Postgres and mySQL. Since Version 1.3 there is also a free trail version for download available. Check it out and test yourself.
Clustering
Dryad is Microsoft's answer to Google's map-reduce. What's the question: How do you process really large amounts of data? My initial impression of Dryad is it's like a giant Unix command line filter on steroids. There are lots of inputs, outputs, tees,