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Posted to issues@activemq.apache.org by "Odyldzhon Toshbekov (JIRA)" <ji...@apache.org> on 2017/05/19 12:37:04 UTC

[jira] [Created] (ARTEMIS-1175) Memory Leak Mqtt

Odyldzhon Toshbekov created ARTEMIS-1175:
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             Summary: Memory Leak Mqtt
                 Key: ARTEMIS-1175
                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1175
             Project: ActiveMQ Artemis
          Issue Type: Bug
          Components: MQTT
    Affects Versions: 2.1.0, 1.5.3
            Reporter: Odyldzhon Toshbekov


Artemis periodically crashed because of OOM. 
I don't have ability to get heap dump from the server where OOM is happens but I reproduce memory leak on my machine (7 clients send 1message every 100 ms to the 1 subscriber)
Heap dump and flight_recording added to this ticket.

Looks like memory leak occurs in the class MQTTSessionState.OutboundStore because every time when Artemis publish message to subscriber he put to map "artemisToMqttMessageMap" key = (serverId + ":"+consumerId) and value = (mqttId) where serverId is id of message generated on Artemis side.

This map is never are cleaned expect subscriber will be reconnected.




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