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Displaying posts with tag: XCom (reset)
Group Replication now interacts with the Group Communication Engine more efficiently

MySQL 8.0.14 comes with a plethora of new features. Some of the new Group Replication features have userfacing options, some impact user-facing options, and others stay completely under the hood. This post will present one of the under-the-hood changes in MySQL 8.0.14: the way the Group Replication layer interacts with the underlying …

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Extending replication instrumentation: account for memory used in XCom

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).…

Group Replication: coping with unreliable failure detection

Failure detection is a cornerstone of distributed systems as it determines which components are working properly or not, allowing it to tackle both network and host instabilities and failures. Like many other distributed systems, Group Replication (GR) requires a majority of correctly operating group members to work properly.…

“The king is dead, long live the king”: Our Paxos-based consensus

In this blog post, we will describe our Paxos-based solution, named eXtended COMmunications, or simply XCOM, which is a key component in the MySQL Group Replication.

XCOM is responsible for disseminating transactions to MySQL instances that are members in a group and for managing their membership.…

Showing entries 1 to 4