Introduction
This blog is a follow up to my original blog in https://blog.mariadb.org/performance-evaluation-of-mariadb-10-1-and-mysql-5-7-4-labs-tplc/ . First of all I would like to thank for all the comments I received. Based on the comments there was a concern if the differences seen on performance was due to different configuration setup. Furthermore, I did not know that there was a configuration variable to get similar multi-threaded flush mechanism on MySQL as there is on MariaDB. To find out if the different configuration variables or different defaults were the reason for different performance, I ran several rounds of new tests. …
Continue reading “Update on Performance measurement on MariaDB 10.1 and MySQL 5.7.4-labs-tplc”
Download MariaDB Galera Cluster 10.0.13
Release Notes Changelog What is MariaDB Galera Cluster?
MariaDB APT and YUM Repository Configuration Generator
The MariaDB project is pleased to announce the immediate availability of MariaDB Galera Cluster 10.0.13. This is a Stable (GA) release.
See the Release Notes and Changelog for detailed information on this release and the What is MariaDB Galera Cluster? page in the MariaDB Knowledge Base for general information about the MariaDB Galera Cluster series.
Thanks, and enjoy MariaDB! …
Continue reading “MariaDB Galera Cluster 10.0.13 now available”
Download MariaDB Galera Cluster 5.5.39
Release Notes Changelog What is MariaDB Galera Cluster?
MariaDB APT and YUM Repository Configuration Generator
The MariaDB project is pleased to announce the immediate availability of MariaDB Galera Cluster 5.5.39. This is a Stable (GA) release.
See the Release Notes and Changelog for detailed information on this release and the What is MariaDB Galera Cluster? page in the MariaDB Knowledge Base for general information about the MariaDB Galera Cluster series.
Thanks, and enjoy MariaDB! …
Continue reading “MariaDB Galera Cluster 5.5.39 now available”
Release Notes Changelog What is MariaDB 10.0?
MariaDB APT and YUM Repository Configuration Generator
The MariaDB project is pleased to announce the immediate availability of MariaDB 10.0.13. This is a Stable (GA) release.
See the Release Notes and Changelog for detailed information on this release and the What is MariaDB 10.0? page in the MariaDB Knowledge Base for general information about the MariaDB 10.0 series.
Thanks, and enjoy MariaDB! …
Introduction
Evaluating the performance of database systems is a very demanding task. There are a lot of hard choices to be made, e.g.:
- What operating system and operating system version is to be used
- What configuration setup is to be used
- What benchmarks are to be used and how long are the warm-up and measure times
- What test setups are to be used
- What version of the database management system is used
- What storage engine is used
While performance evaluation is mostly machine time, there is still a lot of hard work for the human monitoring the tests. …
Continue reading “Performance evaluation of MariaDB 10.1 and MySQL 5.7.4-labs-tplc”
The MariaDB project is pleased to announce the immediate availability of MariaDB 5.5.39. This is a Stable (GA) release.
See the Release Notes and Changelog for detailed information on this release and the What is MariaDB 5.5? page in the MariaDB Knowledge Base for general information about the MariaDB 5.5 series.
Release Notes Changelog What is MariaDB 5.5?
MariaDB APT and YUM Repository Configuration Generator
Thanks, and enjoy MariaDB! …
A much awaited release from the MariaDB project is now stable (GA) – MariaDB Galera Cluster 10.0.12. This is a complete merge of MariaDB 10.0.12 and Galera Cluster, with additional features and bug fixes. This gives you the entire power of Galera Cluster as well as the benefits of all the MariaDB 10 features.
This is the fourth release in the 10.0 Galera Cluster series, and for more changes, please review the changelog and release notes. What are you waiting for, download it now!
…
Continue reading “MariaDB Galera Cluster 10 is now stable (GA)”
Introduction
Eventual consistency [1] is a consistency model, which is used in many large distributed databases. Such databases require that all changes to a replicated piece of data eventually reach all affected replicas. Furthermore, the conflict resolution is not handled in these databases, and the responsibility is pushed up to the application authors in the event of conflicting updates. Eventual consistency is a specific form of weak consistency: the storage system guarantees that if no new updates are made to the object, eventually all accesses will return the last updated value [1]. If no failures occur, the maximum size of the inconsistency window can be determined based on the factors such as communication delays, the load on the system, and the number of replicas involved in the replication scheme. …
Continue reading “Eventually Consistent Databases: State of the Art”