Not yet, when I add a Java NIO nonblocking socket server, the throughput drops to 240k per second with 6 transaction generator threads and 6 server threads. Ad

Not yet, when I add a Java NIO nonblocking socket server, the throughput drops to 240k per second with 6 transaction generator threads and 6 server threads. Adding persistence would drastically slow things down. Assuming there is no powercut to multiple availability zones, you could keep data in memory on one machine in a circular buffer and then persist every second on the other availability zone. Depends how long it takes to restore power.