[jira] [Created] (AMQ-6667) Many instances of "duplicate message ... from cursor" redirecting to dlq

["Gary Tully (JIRA)" <ji...@apache.org>]

Gary Tully created AMQ-6667:
-------------------------------

             Summary: Many instances of "duplicate message ... from cursor" redirecting to dlq
                 Key: AMQ-6667
                 URL: https://issues.apache.org/jira/browse/AMQ-6667
             Project: ActiveMQ
          Issue Type: Bug
          Components: KahaDB
    Affects Versions: 5.14.0
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.15.0


In a high throughput scenario on a single destination there can be many warnings of this kind:

{code}
[2017-03-21 09:51:37,548] WARN ActiveMQ BrokerService[localhost] Task-5 Queue - queue://TEST, subscriptions=10, memory=102%, size=399, 
pending=0, duplicate message ActiveMQTextMessage {commandId = 72, responseRequired = true, 
messageId = ID:Mac.fritz.box-64479-1490086286066-183:1:1:1:68, originalDestination = null, originalTransactionId = null, 
producerId = ID:Mac.fritz.box-64479-1490086286066-183:1:1:1, destination = queue://TEST, transactionId = null, expiration = 0, 
timestamp = 1490086297427, arrival = 0, brokerInTime = 1490086297427, brokerOutTime = 1490086297427, correlationId = null, replyTo = null, persistent = true, 
type = null, priority = 4, groupID = null, groupSequence = 0, targetConsumerId = null, compressed = false, userID = null, 
content = org.apache.activemq.util.ByteSequence@8672edc, marshalledProperties = null, dataStructure = null, redeliveryCounter = 0, size = 50216, properties = null, 
readOnlyProperties = false, readOnlyBody = false, droppable = false, jmsXGroupFirstForConsumer = false, text = ...XXXXXXXXXXXX} 
from cursor, is cursor audit disabled or too constrained? Redirecting to dlq
{code}

The broker loads messages twice into the cursor.



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