Package org.apache.pulsar.broker.service.persistent
package org.apache.pulsar.broker.service.persistent
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ClassDescriptionClass that contains all the logic to control and perform the deduplication on the broker side.The MessageRedeliveryController is a non-thread-safe container for maintaining the redelivery messages.given a timestamp find the first message (position) (published) at or before the timestamp.Encapsulate all the logic of replicated subscriptions tracking for a given topic.Store the last N snapshots that were scanned by a particular subscription.Replicate messages to shadow topic.