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On error [1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144] 
you need to increase the value not on the guest, but on the host server, as the guest has no access to kernel variables. 
 Append vm.max_map_count = 262144 
in /etc/sysctl.conf 
 too many open files: 
 Increase ulimits -Hn and ulimits -Sn to more than 200000
and restart elasticearch