I am using the Node-RED running in a Docker container on Ubuntu. When Node-Red starts it consumes about 2.6GB of memory, then in less than 24 hours it is up to 5.95GB (which is near the maximum available). I think there is a memory leak, how can I troubleshoot the issue?
Hi and welcome 
Can we try and simplify the problem
Does it happen with a completely empty flow or with a set of them
Can you (temporary if needed) do a standard (non-docker) install - does it behave the same or not
If you can - post your flow here and maybe someone can test if out on their machine using Docker
Just a shot in the dark, but I had similar issue when I first started using node-red.
Turned out, Ii you use an rbe node on binary data its pretty much inevitable.
Here is the followup thread to the original where I stumbled onto the solution:
https://discourse.nodered.org/t/memory-leak-what-am-i-doing-wrong/627/23
My non-docker install of node-red on Ubuntu says it is using 96MiB.
70MiB on my Windows 10 test setup which includes quite a number of uibuilder, moment, fs and other test flows.
I tried a non-Docker install and it only uses 1.53GB and it stays the same.
So, I think that I will continue with the non-Docker install.
That is still ten or twenty times what is usual. You need to understand why. Are you handling big video files or something?
Maybe they don't 
Maybe they are quite happy that it works
Unless there is a good and understood reason for it using so much space then there is a strong possibility that the fact that it is apparently working correctly is just an illusion.
