For a long time I've been using remote Kernels in Mathematica 10 & 11. But since some time ago I cannot connect to my remote machines on 11.3 anymore. I always get the error message
General::time: Operation LaunchKernels timed out after 10.` seconds.
I've tried different launch commands, e.g.
ssh -x -f `1` math -wstp -linkmode Connect `4` -linkname `2` -subkernel -noinit ssh -x -f `1` math -mathlink -linkmode Connect `4` -linkname `2` -subkernel -noinit
I also switched
MathKernel. I tried the answer from this post, but same result. It seems that the option
Parallel`Settings`$MathLinkTimeout = 100 does not work for me, I always get a timeout at 10s. On my remote machine I see the ssh connection in the log files, so ssh should not be the problem.
I didn't have this problem with previous versions, remote kernels always worked without problem. Was there some change introduced in version 11.2 or 11.3 that changed the behaviour of remote kernels? Can I set the timeout somehow (
$MathLinkTimeout doesn't work)?