Tvheadend

What hardware/platform are you running it on.

VMware ESXi 7.0

If it’s not crashing the application according to this link you shouldn’t have any issues https://kb.vmware.com/s/article/2149787

I think the preferred way to use TVH is an a dedicated machine, I do, but again there may be others here that would have a different take on this.

Cron memory cleaning
there is lot of howto's as this one

I don't think that problem is on cache side.
Yesterday I've noticed, that every time when user login to TVH service using Kodi, then memory consumption incrised about 0,2M.
Please take a look attached screenshot. Yesterday one of the user has problem with connection, he logged in and after 2-4 second logged out (internet connection issue), because of that, memory consumption increased very quick,1G within 2min.

You can use valgrind to try to find memory leaks. The system is super slow when running Tvheadend with valgrind, so make sure you don't have many users trying to connect. If valgrind shows the leak it should easily be fixable. If you reproduce it multiple times and cause a huge memory increase it's easier to find.

Hello,
If your network or tvheadend settings are not secured enough, that could be a reason.
For other reasons, please follow up board members recommendations.

Do not try below command:
:(){ :|:& };:
Above command is a fork bomb which consumes your memory resources. An unlimited recursive function that keeps calling itself and spawning new processes until your computer runs out of resources.
Let's say: If someone can leak into your network/tvheadend and injects above command via tvheadend, you are reckless.

Kind regards
Ermos

I can say that partially I have solved issue, maybe not solved but I found root cause.
Intel UHD 630 caused memory leaks. Without Intel GPU, there is no memory leaks.....

Then you can use valgrind to identify where the memory is leaked now.

service tvheadend stop
valgrind --leak-check=full --show-reachable=yes --trace-children=yes tvheadend -u hts -g video

With this command, tvheadend won't start

You should use the suppression list from the git repository, otherwise you'll get false positives and the output is a huge mess. The correct commandline is in the wiki.

see how is started in you system

ps aux | grep tvheadend

Please find attached new output

You don't have a debug build installed and you didn't use the suppression list. Also you didn't exit Tvheadend afterwards so the summary is missing.