How to solve “max virtual memory error” in Elasticsearch

1. problem

after starting Elasticsearch, an error has occured.

error : max virtual memory areas vm.max_map_count [4096] is too low, increse to at least [65530]

2. solution

add into limits.conf

$ sudo vim /etc/security/limits.conf

'USER_NAME' hard nofile 262144
'USER_NAME' soft nofile 262144
'USER_NAME' hard nproc 262144
'USER_NAME' soft nproc 262144
'USER_NAME' hard memlock unlimited
'USER_NAME' soft memlock unlimited

add into sysctl.conf

$ sudo vim /etc/sysctl.conf

vm.max_map_count=262144

after rebooting, done!!