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Displaying posts with tag: semi-sync (reset)

Comparing Percona XtraDB Cluster with Semi-Sync replication Cross-WAN
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I have a customer who is considering Percona XtraDB Cluster (PXC) in a two colo WAN environment.  They wanted me to do a test comparing PXC against semi-synchronous replication to see how they stack up against each other.

Test Environment

The test environment included AWS EC2 nodes in US-East and US-West (Oregon).  The ping RTT latency between these nodes was right around 100ms.

All environments used Percona Server or Percona XtraDB Cluster server 5.5.24.  Innodb durability was disabled for all tests (innodb_flush_log_at_trx_commit=2).  All other settings were the same kept the same unless otherwise noted.

I tested against the following

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