[broker] add distributed lock when clear seesion state in connect and disconnect

longkerdandy / mithqtt

MQTT Message Broker with Scalability written in Java

https://mithqtt.readme.io/

Apache License 2.0

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Closed longkerdandy closed 8 years ago

longkerdandy commented 8 years ago

There are potential race conditions in connect/disconnect handling from different broker nodes. We need a distributed lock to prevent that.