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https://issues.apache.org/jira/browse/ARTEMIS-5499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17956141#comment-17956141
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ASF subversion and git services commented on ARTEMIS-5499:
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Commit 0f6c5fbbddb8ca73f0b00a2b623782f4dbdef13a in activemq-artemis's branch
refs/heads/main from Clebert Suconic
[ https://gitbox.apache.org/repos/asf?p=activemq-artemis.git;h=0f6c5fbbdd ]
ARTEMIS-5499 Fixing logic on auto create and fixing broken tests
> Refactor MQTT subscription persistence
> --------------------------------------
>
> Key: ARTEMIS-5499
> URL: https://issues.apache.org/jira/browse/ARTEMIS-5499
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Reporter: Justin Bertram
> Assignee: Justin Bertram
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.42.0
>
> Time Spent: 5h 40m
> Remaining Estimate: 0h
>
> The current way the broker persists MQTT subscription data has the potential
> to starve the broker of threads. It also leads to timeouts like this under
> load:
> {noformat}
> java.lang.IllegalStateException: AMQ850000: Unable to store MQTT state
> within given timeout: 5000ms
> at
> org.apache.activemq.artemis.core.protocol.mqtt.MQTTStateManager.storeSessionState(MQTTStateManager.java:192)
> at
> org.apache.activemq.artemis.core.protocol.mqtt.MQTTSubscriptionManager.addSubscriptions(MQTTSubscriptionManager.java:334){noformat}
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