stale read
an operation begins after another ends but appears to execute before the prior operation
stale read in a sentence
“The replica returned a stale read — it had not yet received the leader's latest committed update.”
Related Words
amnesia
a node forgets information; total amnesia means forgetting everything, partial amnesia occurs after crashes
bit rot
gradual storage corruption from cosmic rays, thermal stress, or media degradation over time
byzantine fault
a node takes arbitrary actions including malicious ones; requires more than two-thirds loyal nodes for consensus
crash
a node stops executing code until it is restarted
crash-stop
a failure model where a node stops executing and never recovers
crash-recover
a failure model where a node stops executing code and later restarts from durable state