razvan tanasescu created ARTEMIS-1203:
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Summary: possible loss of messages in cluster
Key: ARTEMIS-1203
URL: https://issues.apache.org/jira/browse/ARTEMIS-1203
Project: ActiveMQ Artemis
Issue Type: Bug
Reporter: razvan tanasescu
Not entirely sure if the following behavior is as expected or is a bug.
steps
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start 2 servers similar to cluster-static-discovery example
but with <message-load-balancing>ON_DEMAND</message-load-balancing>
producer_1 sending messages to server1 on a queue
consumer_1 start on server 1
consumer_2 start on server 2 -> messages begin being balanced
kill consumer_2 -> for a while, consumer_1 receives even messages as if
messages are being still balanced then consumer_1 consecutive messages.
restart after a long time consumer_2 -> consumer_2 receives messages balanced
on server_2
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not sure if it's a valid usecase, but in case i never start again the
consumer_2 those messages will not be consumed.
i've noticed that if i have only one server and multiple consumers, if i kill
one of the consumers, after a while, the messages that were supposed to reach
that killed consumer are eventually consumed by the other active consumers so i
was expecting the same behavior in a cluster configuration with ON_DEMAND
message balancing.
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