Andreas Mattes created AMQ-3961:
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Summary: Durable subscriber only receives part of the persisted
messages on re-connect
Key: AMQ-3961
URL: https://issues.apache.org/jira/browse/AMQ-3961
Project: ActiveMQ
Issue Type: Bug
Components: Connector
Affects Versions: 5.6.0
Environment: Default configuraton of ActiveMQ under Linux or Windows
Reporter: Andreas Mattes
A durable subscriber is connected to ActiveMQ using the ConnectionConsumer
protocol, transacted sessions, and at most 1 message per session. While the
subscriber is disconnected, the publisher publishes e.g. 10 messages. When the
subscriber re-connects, it only receives 2 messages of those. If it repeatedly
disconnects and re-connects, it receives 2 messages each time until all
messages are received.
Further investigation reveals that the problem lies in class
org.apache.activemq.broker.region.PrefetchSubscription which does not re-check
for further pending messages to be dispatched when committed message are
removed from the list of dispatched but not yet acknowledged messages.
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