轉 ElasticSearch啟動報錯，bootstrap checks failed
修改elasticsearch.yml配置檔案，允許外網訪問。
vim config/elasticsearch.yml
# 增加
network.host: 0.0.0.0
啟動失敗，檢查沒有通過，報錯
[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]
編輯 /etc/security/limits.conf，追加以下內容；* soft nofile 65536
* hard nofile 65536
此檔案修改後需要重新登入使用者，才會生效
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
編輯 /etc/sysctl.conf，追加以下內容：vm.max_map_count=655360
儲存後，執行：
sysctl -p
重新啟動，成功。
bin/elasticsearch &
修改elasticsearch.yml配置檔案，允許外網訪問。
vim config/elasticsearch.yml
# 增加
network.host: 0.0.0.0
啟動失敗，檢查沒有通過，報錯
[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]
編輯 /etc/security/limits.conf，追加以下內容；* soft nofile 65536
* hard nofile 65536
此檔案修改後需要重新登入使用者，才會生效
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
編輯 /etc/sysctl.conf，追加以下內容：vm.max_map_count=655360
儲存後，執行：
sysctl -p
重新啟動，成功。
bin/elasticsearch &