Basically subj. In a case of ChronicleMap: if process was killed or failed with OOM error or something else, is there a probability that actual stored data was corrupted and map became not usable any more?
Entries altered by queries which are in-flight when the process is interrupted, might be corrupted, however, Chronicle Map 3 release will have an option to exclude this possibility, i. e. the entries will either have the new value or the old value, but not some corrupted bytes as the value.
The entries not updated right when crash occurs, are safe.