Guys! please help!!!! I want to go home, it's past the workday here already... but the damn server is not working :((
I even found finally /etc/sysconfig/elasticsearch but changing the MAX_OPEN_FILES=131070 had also no effect...
I'm getting really desperate here 
When I launch it from command line with -Des.max-open-files=true it has 131070 but the damn service is not taking it.