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https://issues.apache.org/jira/browse/AMQ-9595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Baptiste Onofré updated AMQ-9595:
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Fix Version/s: 5.18.7
> Durable subscriber receives acknowledge messages if they are farther than the
> maxBatchSize
> ------------------------------------------------------------------------------------------
>
> Key: AMQ-9595
> URL: https://issues.apache.org/jira/browse/AMQ-9595
> Project: ActiveMQ Classic
> Issue Type: Bug
> Components: KahaDB
> Affects Versions: 6.1.3, 5.18.6
> Reporter: Nikita Shupletsov
> Assignee: Jean-Baptiste Onofré
> Priority: Major
> Fix For: 6.2.0, 6.1.4, 5.19.0, 5.18.7
>
> Attachments: DurableSubscriptionPartialAckTest_test.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Let's say we have a topic with 2 durable subscribers:
> * we send 10000 messages to the topic.
> * First subscriber receives all messages, and acknowledges every second of
> them(0th, 2nd, 4th and so on)
> * Second subscriber doesn't acknowledge anything
> * we restart the broker
> * first subscriber connects to the broker and starts receiving messages
> * at first it receives correct messages(1st, 3rd, 5th and so on), but at
> some point it starts receiving all messages(400th, 401st, 402nd and so on).
> See a test in the attachment
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