MQTT Memory exhausted Issues

[oraclesod]

II have been trying to build some code using M5Stack rather than C++ in Arduino on my M5 Basic unit and have been running into issues with the mqtt stack.

Initially I thought it was my code, using the UIFlow2 gui and reviewing the python, the build has a lot of variables and mqtt items published (16). So i went through and optimized the code myself, however no matter what I do, eventually i start seeing "mqtt_client: Error create mqtt task" messages and they appear every 15 seconds until i get a "esp_mqtt_set_config(415): Memory exhausted" message and the system panics. Thing is my code (after startup and the initial mqtt publish, only calls the update to the mqtt items ever 60 seconds, not every 15, i have no idea whats happening or whats using up memory, when i check gc.mem_free() there is lots of free memory so maybe there is fragmentation happening, however im not doing anything during those messages in my code

I created a forum post but im not too sure what to do next https://community.m5stack.com/topic/7712/mqtt-apply-for-messaging-is-causing-out-of-memory/2

[lbuque]

If you use umqtt, it will not have any memory leaks. The exception that occurs in "mqtt_client" comes from the connection between the device and the server.

[oraclesod]

I am using umqtt simple, my understanding is this is whats available in the M5stack by default anyway, but thats the library im importing too.

Sure but is it the connection between my server and the device or is it between the device and the M5stack server (that also has an open mqtt connection, which i can see on my firewall while the device is online).

When the error starts, it appears every 15 seconds, however my keep alive is set to 60 seconds and my code that publishes runs every 60 seconds too and completes within about 5 seconds. So what is happening every 15 seconds to cause the error