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Quest for Better Replication in MySQL: Galera vs. Group Replication

 | February 24, 2017 |  Posted In: Group Replication, High-availability, Insight for DBAs, Insight for Developers, MySQL, Percona XtraDB Cluster, Replication

Group Replication

UPDATE: Some of the language in the original post was considered overly-critical of Oracle by some community members. This was not my intent, and I’ve modified the language to be less so. I’ve also changed term “synchronous” (which the use of is inaccurate and misleading) to “virtually synchronous.” This term is more accurate and already used by both […]

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WAN Synchronous Clusters: Dealing with Latency Using Concurrency

 | February 1, 2017 |  Posted In: Group Replication, Insight for DBAs, Insight for Developers, MySQL, Percona XtraDB Cluster, Replication

WAN Latency

In this blog, we’ll discuss how to use concurrency to help with WAN latency when using synchronous clusters. WAN Latency Problem Our customers often ask us for help or advice with WAN clustering problems. Historically, the usual solution for MySQL WAN deployments is having the primary site in one data center, and stand-by backup site in […]

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