Regarding Qos 0 memory exceeded alert

1

Hi,
I recently came across a notification in my Hivemq control center dashboard stating Qos 0 memory exceeded. Does this occur when a memory limit has been set previously has been exceeded? Also i read that new messages would get dropped. If that is the case how can i prevent the memory exceeded error and how can i prevent messages getting dropped?

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Any answers are appreciated.
Thanks!

2

Hi Shaku,

You previously asked about a different observed error, “Qos 0 channel not writable”:
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https://community.hivemq.com/t/qos-0-channel-not-writable/1499
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For “Qos 0 memory exceeded” errors, everything @michael_w advised should still apply - it’s usually an issue of topic client subscriber consumption being a bottleneck. What was the outcome after reviewing his advice? Did you consider moving to a later version?

This is the Control Center analytics documentation for our current release if it could also be helpful:

https://www.hivemq.com/docs/hivemq/4.11/control-center/analytic.html#dropped-messages

Thanks,
Seth - HiveMQ Support