GitHub user potiuk added a comment to the discussion: Unable to see logs in the 
web UI when the job is running

Yeah, I think I knw what it is.  it looks like your processes have too low 
ulimit set. The error usually happens when there are not enough sockets. This 
is an "os" level error and often caused by `ulimit` constraints on the kernel 
level. Simply it looks like whatever underlying kernel configuration you have, 
it opened too many sockets already. This might also happen when you have many, 
many many processes/pods sharing the same kernel on the machine you run it - 
each of them will open sockets for all kind of communication and at some point 
of time you simply run out of those.

So you have to look at the configuration of your Kubernetes and Kernel to see 
how you can increase the numbers. 

Converting it into a discussion in case more is needeed.

GitHub link: 
https://github.com/apache/airflow/discussions/45624#discussioncomment-11823676

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