Github user vivekmittal commented on a diff in the pull request: https://github.com/apache/storm/pull/2104#discussion_r115406299 --- Diff: external/storm-kafka-client/src/main/java/org/apache/storm/kafka/spout/internal/OffsetManager.java --- @@ -49,10 +51,14 @@ public OffsetManager(TopicPartition tp, long initialFetchOffset) { LOG.debug("Instantiated {}", this); } - public void add(KafkaSpoutMessageId msgId) { // O(Log N) + public void ack(KafkaSpoutMessageId msgId) { // O(Log N) --- End diff -- The OffsetManager now maintains acked as well as emitted set. As @srdo pointed **add** will be a little ambiguous. I can make them more verbose if needed. Something like **addAck** and **addEmit**
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