Across a large enough sample set, I definitely see occasional serial errors (although they're rare). For me, I detect them by checking the exit-code on each co

Across a large enough sample set, I definitely see occasional serial errors (although they're rare). For me, I detect them by checking the exit-code on each command that I run, and also by looking for expected output in response to the commands. Corrective action is usually a full-stage retry.