启动失败，检查没有通过，报错

2018-05-18T17:44:59,658][INFO ][o.e.b.BootstrapChecks    ] [gFOuNlS] bound or publishing to a non-loopback address, enforcing bootstrap checks
ERROR: [2] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]

编辑 /etc/security/limits.conf，追加以下内容；

soft nofile 65536
hard nofile 65536
soft nproc 4096
hard nproc 4096

此文件修改后需要重新登录用户，才会生效

[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

[1]: max number of threads [1024] for user [esuser] is too low, increase to at least [2048]

cat /etc/security/limits.d/90-nproc.conf 

soft    nproc     4096

sed -i 's/1024/4096/' /etc/security/limits.d/90-nproc.conf

编辑 /etc/sysctl.conf，追加以下内容： vm.max_map_count=655360 保存后，执行： sysctl -p

重新启动，成功。

bin/elasticsearch &