When we run ipfixol using 'ipfixcol -v 3' with input ipfix messages over udp and json output on kafka we get this error on console almost after 12-24 hours:

terminate called after throwing an instance of 'std::runtime_error'
what(): Requested 'partition' is unknown in the Kafka cluster.
Aborted

Though partition never changes, and spark as a consumer continues to work using same partition & topic but without data.