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https://issues.apache.org/jira/browse/AMQ-6667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15994645#comment-15994645
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ASF subversion and git services commented on AMQ-6667:
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Commit a0ba0bf4c6beaf50ce5e021ef5e4d493119bb1ef in activemq's branch
refs/heads/master from [~gtully]
[ https://git-wip-us.apache.org/repos/asf?p=activemq.git;h=a0ba0bf ]
[AMQ-6667] gate cursor cache enablement on a single pending send and tidy up
setbatch to always check outstanding async future list. Fix and test
> 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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