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mobizt / Firebase-ESP32

[DEPRECATED]🔥 Firebase RTDB Arduino Library for ESP32. The complete, fast, secured and reliable Firebase Arduino client library that supports CRUD (create, read, update, delete) and Stream operations.
MIT License
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HELP MultiPathStreamCallback not working if database grows #137

Closed Rakado93 closed 3 years ago

Rakado93 commented 3 years ago

I am setting a multipathstream call back which works fine for a small database. However when the database grows (outside the targeted node) the ESP32 doesn't responds to changes in the targeted node any more and stops receiving stream data. Thank you for any help to understand the problem.

mobizt commented 3 years ago

You may need to set stack size https://github.com/mobizt/Firebase-ESP32/tree/master/src#set-the-multiple-paths-stream-callback-functions

And set the response size https://github.com/mobizt/Firebase-ESP32/tree/master/src#set-the-http-response-size-limit

Please read this issue for limitation and recommendation. https://github.com/mobizt/Firebase-ESP32/issues/89

mobizt commented 3 years ago

Normally the large payload of data under the stream path is unsuitable for the limited memory device.

Any changes in the parent node i.e. its child node changes, the stream event data of that changes will be pushed to the device regardless of whether that the node path was included in the child path array assigned with the function beginMultiPathStream or not.

Set the response size of my above comment can help but you may need to redesign your database based on the memory perspective.

Stream data should be kept as small as possible due to it designed for realtime data. The large log or history data should not included in the stream path.