[Monitoring Tool] Elastic Stack: Elasticsearch "vm.max_map_count [65530] is too low" 오류 해결 방법

오류 발생

Elasticsearch 실행 시 다음과 같은 오류가 발생했습니다.

hyper@ubuntu:/opt/gopath/src/github.com/hyperledger/elastic-stack/elasticsearch-6.7.2$ ./bin/elasticsearch
...
[2019-07-21T22:49:58,150][INFO ][o.e.n.Node               ] [l46XU1d] initialized
[2019-07-21T22:49:58,151][INFO ][o.e.n.Node               ] [l46XU1d] starting ...
[2019-07-21T22:49:58,455][INFO ][o.e.t.TransportService   ] [l46XU1d] publish_address {172.18.0.1:9300}, bound_addresses {[::]:9300}
[2019-07-21T22:49:58,538][INFO ][o.e.b.BootstrapChecks    ] [l46XU1d] bound or publishing to a non-loopback address, enforcing bootstrap checks
ERROR: [1] bootstrap checks failed
[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2019-07-21T22:49:58,604][INFO ][o.e.n.Node               ] [l46XU1d] stopping ...
[2019-07-21T22:49:58,667][INFO ][o.e.n.Node               ] [l46XU1d] stopped
[2019-07-21T22:49:58,667][INFO ][o.e.n.Node               ] [l46XU1d] closing ...
[2019-07-21T22:49:58,727][INFO ][o.e.n.Node               ] [l46XU1d] closed
[2019-07-21T22:49:58,732][INFO ][o.e.x.m.p.NativeController] [l46XU1d] Native controller process has stopped - no new native processes can be started

해결 방법

sysctl 명령으로 vm.max_map_count를 262144로 변경합니다.

# vm.max_map_count 변경
$ sudo sysctl -w vm.max_map_count=262144
vm.max_map_count = 262144

이제 다시 Elasticsearch를 실행하면 정상적으로 실행됩니다.