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ARTEMIS-5441 discrepancy b/w MQTT doc & code for session scan interval #5781

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Merged
brusdev merged 1 commit into from
Jun 19, 2025
Merged

ARTEMIS-5441 discrepancy b/w MQTT doc & code for session scan interval #5781

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2 changes: 1 addition & 1 deletion ...nt/src/main/java/org/apache/activemq/artemis/api/config/ActiveMQDefaultConfiguration.java
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Expand Up @@ -684,7 +684,7 @@ public static String getDefaultHapolicyBackupStrategy() {
private static final boolean DEFAULT_SECURITY_CACHE_METRICS = false;

// How often (in ms) to scan for expired MQTT sessions
private static long DEFAULT_MQTT_SESSION_SCAN_INTERVAL = 500;
private static long DEFAULT_MQTT_SESSION_SCAN_INTERVAL = 5000;

// How long (in ms) to wait to persist MQTT session state
private static long DEFAULT_MQTT_SESSION_STATE_PERSISTENCE_TIMEOUT = 5000;
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16 changes: 16 additions & 0 deletions docs/user-manual/versions.adoc
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Expand Up @@ -13,6 +13,22 @@ NOTE: If the upgrade spans multiple versions then the steps from *each* version

NOTE: Follow the general upgrade procedure outlined in the xref:upgrading.adoc#upgrading-the-broker[Upgrading the Broker] chapter in addition to any version-specific upgrade instructions outlined here.

== 2.42.0

https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315920&version=12355900[Full release notes]

=== Highlights

* Example highlight 1
* Example highlight 2

=== Upgrading from 2.41.0

* The broker was always meant to scan MQTT sessions every `5000` milliseconds, but due to a bug it was doing so every `500` milliseconds instead.
This has been fixed via https://issues.apache.org/jira/browse/ARTEMIS-5202[ARTEMIS-5202].
Since this is technically changing the default behavior of the broker it is being enumerated here for clarity.
Keep in mind that this is configurable via the xref:mqtt.adoc#automatic-subscription-clean-up[`mqtt-session-scan-interval`] parameter in `broker.xml`.

== 2.41.0

https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315920&version=12355793[Full release notes]
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