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Group Replication VS Percona XtraDB Cluster: The True Cost of Consistency

tusacentral.net · published 12 June 2026

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https://github.com/Tusamarco/blogs/blob/master/testmachine/chaos_test_machine.txt

github.com

https://github.com/Tusamarco/sysbench-tpcc

github.com

https://github.com/Tusamarco/blogs/blob/master/testmachine/ps_vs_pxc_configuration.md

github.com

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/CHAOS_tpcc_PXC_VS_PS_eventual_run_tpcc_ReadCommitted.jpg

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/CHAOS_tpcc_PXC_VS_PS_eventual_run_tpcc_RepeatableRead.jpg

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/CHAOS_tpcc_PXC_VS_PS_after_run_tpcc_ReadCommitted.jpg

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/CHAOS_tpcc_PXC_VS_PS_after_run_tpcc_RepeatableRead.jpg

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/CHAOS_tpcc_PXC_VS_PS_partial_run_tpcc_ReadCommitted.jpg

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/CHAOS_tpcc_PXC_VS_PS_partial_run_tpcc_RepeatableRead.jpg

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/pxc_vs_gr_disk_util.png

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/pxc_vs_gr_memory_used.png

tusacentral.net

https://tusacentral.net/joomla/images/stories/pxc_vs_gr_stale_reads/pxc_vs_gr_cpu.png

tusacentral.net

The Failover Brownout: Rethinking High Availability in MySQL Group Replication Read at the source ↗

tusacentral.net

https://mariadb.com/docs/galera-cluster/galera-architecture/certification-based-replication

mariadb.com

https://docs.percona.com/percona-xtradb-cluster/5.7/wsrep-system-index.html

docs.percona.com