Author - Tibor Korocz

How Can ScaleFlux Handle MySQL Workload?

ScaleFlux Handle MySQL

Recently I had the opportunity to test a storage device from ScaleFlux called CSD 2000. In this blog post, I will share the results of using it to run MySQL in comparison with an Intel device that had a similar capacity.
First of all, why do we need another storage device? Why is ScaleFlux any […]

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Galera 4 Streaming Replication in Percona XtraDB Cluster 8.0

Galera 4 Streaming Replication in Percona XtraDB Cluster

I was testing the latest Percona XtraDB Cluster 8.0 (PXC) release which has the Galera 4 plugin, and I would like to share my experiences and thoughts on the Streaming Replication feature so far.
What Is Streaming Replication, in One Sentence?
In Galera 4, the large transaction could split into smaller fragments, and even before it […]

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Group Replication and Percona XtraDB Cluster: Overview of Common Operations

group replication percona xtradb cluster

In this blog post I would like to give an overview of the most common failover scenarios and operations when using MySQL Group Replication 8.0.19 (aka GR) and Percona XtraDB Cluster 8 (PXC) (which is based on Galera), and explain how each technology handles each situation. I have created a three-node cluster with Group […]

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MySQL Group Replication – Partial Network Failure Performance Impact

mysql group replication

In this two-part blog series, I wanted to cover some failover scenarios with Group Replication. In part one, I will discuss an interesting behavior and performance degradation I discovered while writing these posts. In part two, I will show several failover scenarios and demonstrate how Group Replication handles each situation.
The test environment is very […]

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Introducing Metabase, a Simple and Powerful Analytics Tool


Recently I was looking for some simple way to analyze and create graphs from data stored in MySQL tables. I know Grafana can also plot graphs from MySQL tables, but somehow it felt like overkill and you are not using the traditional SQL syntax there. So I was searching for another solution, and it […]

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