On previous posts about Group Replication consistency we:
In blog 3. we presented the consistency levels: EVENTUAL, BEFORE, AFTER and BEFORE_AND_AFTER; their scopes: SESSION, GLOBAL; and their context: whether they only impact the ongoing transaction or all concurrent transactions.…
As we showed on the introduction post, in MySQL 8.0.14 Group Replication was once again improved. Now the developer can specify which is the consistency level of all group transactions or even of a single transaction.
Note that this is about consistency in terms of the global synchronization of transactions in the group.…
The MySQL Group Replication (GR) feature is a multi-primary update anywhere or single-primary replication plugin for MySQL with built-in conflict detection and resolution, automatic distributed recovery, and group membership.
Its goal it is to make high-availability (HA) simple with off-the-shelf hardware, not only to new applications but also existing ones – that was one of the motivations of the single-primary mode.…
Version 8.0.12 added many great new features to MySQL. One of the new features included is the memory instrumentation of the XCom cache, which allows users to view and monitor the memory utilization of the cache by querying Performance Schema (PS).…
In order to improve observability and manageability of MySQL Group Replication (GR), we enhanced its instrumentation in MySQL 8.0.4. With these goals in mind, we have extended the usage of Performance Schema (P_S) from this plugin to the included Group Communication System (GCS) module as well as its submodule eXtended Communications (XCom) which are responsible for all communication involved in the dissemination of transactions to other MySQL instances.…
Great news: Group Replication is now officially released with MySQL 5.7.17, congratulations to everybody that worked so hard for it!
In this post I plan to share more details about the performance of Group Replication while addressing one of our frequently asked questions, which is how it performs compared to Galera.…
Extremely exciting news! A big day today. In case you have missed it, MySQL Group Replication has made it into the MySQL 5.7.17 release. Thus, it is now GA.
The MySQL Group Replication feature is a multi-master update anywhere replication plugin for MySQL with built-in conflict detection and resolution, automatic distributed recovery, and group membership.…
We are very excited about the next release of MySQL Group Replication 0.9.0 in MySQL 5.7.15 and the great work that has been done to improve its stability. Release after release, MySQL Group Replication becomes more stable and more user-friendly and has reached a maturity level that made us declare 0.9.0 a release candidate.…
In this blog post we will present a first look at the performance of Group Replication (GR), now that the RC is out. The goal is to provide some insight on the throughput, latency and scalability one can expect in a modern computing infrastructure, using GR in single- and multi-master configurations, but mostly focused on single-master.…
Hi all, it is time again to do another preview release of MySQL Group Replication, the plugin that brings multi-master update everywhere support to MySQL, like we described in the Hello World post.
We are very proud to present the eighth preview release of MySQL Group Replication plugin, based on MySQL Server 5.7.15.…