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How We Made Percona XtraDB Cluster Scale

In this blog post, we’ll look at the actions and efforts Percona experts took to scale Percona XtraDB Cluster.

Introduction

When we first started analyzing Percona XtraDB Cluster performance, it was pretty bad. We would see contention even with 16 threads. Performance was even worse with sync binlog=1, although the same pattern was observed even with the binary log disabled. The effect was not only limited to OLTP workloads, as even other workloads (like update-key/non-key) were also affected in a wider sense than OLTP.

That’s when we started analyzing the contention issues and found multiple problems. We will discuss all these problems and the solutions we adapted. But …

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