Jun Rao created KAFKA-4546: ------------------------------ Summary: a consumer could miss tombstone when leader changes during the reads Key: KAFKA-4546 URL: https://issues.apache.org/jira/browse/KAFKA-4546 Project: Kafka Issue Type: Bug Affects Versions: 0.8.2.1 Reporter: Jun Rao
Currently, in a compacted topic, we delay the removal of a tombstone by delete.retention.ms to avoid the case that a consumer reads a non-tombstone before the tombstone, then tombstone is removed and the consumer misses the tombstone. However, tombstones are removed independently in different replicas. Supposed that a tombstone is already removed in the follower, but not in the leader. A consumer could read a non-tombstone message on the leader, then the leader changes, and the consumer will miss the tombstone on the new leader since it's already deleted. -- This message was sent by Atlassian JIRA (v6.3.4#6332)