I would like to activate logs of elasticsearch .
When I run elasticsearch binaries, I realize that I have problems with logging : the configuration cannot be loaded !
In my case I was trying to start elasticsearch from the tar download so that I can run multiple separate instances easily without service definitions.
What worked for me was to go up a directory and launch elasticsearch using bin/elasticsearch
instead of just elasticsearch
while being in the bin directory.
Now it started up no problem without any symlinks, service files, or other changes.