When a Small Change Writes Too Much – How A Linux Kernel Improvement Can Strike You in PXC/Galera Workloads

We’ve recently been dealing with an interesting customer case where a PXC version upgrade from 5.7 to 8.0 seemed to trigger a completely unexpected problem. Even though the workload and MySQL settings did not change, all PXC members began exhibiting sparse but regular bursts of massive disk writes. Yet the MySQL side workload statistics that we... Weiterlesen: When a Small Change Writes Too Much – How A Linux Kernel Improvement …