I am often seeing issue in which kafka consumer gets current offset and lag set to unknown
Earlier consumer was having offset and lag
GROUP, TOPIC, PARTITION, CURRENT OFFSET, LOG END OFFSET, LAG, OWNER
G.AB_KAFF, T.AB_KAFF, 0, 3, 6, 3, consumer-2
G.AB_KAFF, T.AB_KAFF, 1, 8, 11, 3, consumer-2
When I subscribed this consumer again after few days its offset and lag is set to unknown
GROUP, TOPIC, PARTITION, CURRENT OFFSET, LOG END OFFSET, LAG, OWNER
G.AB_KAFF, T.AB_KAFF, 0, unknown, 7, unknown, consumer-2
G.AB_KAFF, T.AB_KAFF, 1, unknown, 11, unknown, consumer-2
Is kafka removing previous offsets for that consumer since I am unsubscribing whole consumer group from topic ?
