第一步、修改ElasticSearch根目錄下的config文件夾下的elasticsearch.yml文件，如圖

　　現在啟動服務你會發現出現3個錯誤

elasticsearch 5.1 安裝過程中遇到了一些問題做一些記錄。
 
問題一：警告提示
[2016-12-20T22:37:28,543][INFO ][o.e.b.BootstrapCheck     ] [elk-node1] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
[2016
 
-12-20T22:37:28,552][ERROR][o.e.b.Bootstrap          ] [elk-node1] node validation exception
bootstrap checks failed
max number of threads [1024] for user [elasticsearch] is too low, increase to at least [2048]
[2016-12-20T22:37:28,560][INFO ][o.e.n.Node               ] [elk-node1] stopping ...
[2016-12-20T22:37
 
:28,628][INFO ][o.e.n.Node               ] [elk-node1] stopped
[2016-12-20T22:37:28,629][INFO ][o.e.n.Node               ] [elk-node1] closing ...
[2016-12-20T22:37:28,677][INFO ][o.e.n.Node               ] [elk-node1] closed
 
報了一大串錯誤，其實只是一個警告。
 
解決：使用新的linux版本，就不會出現此類問題了。
 
問題二：ERROR: bootstrap checks failed
max file descriptors [
 
4096] for elasticsearch process likely too low, increase to at least [65536]
max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]
解決：切換到root用戶，編輯limits.conf 添加類似如下內容
vi /etc/security/limits.conf 
 
添加如下內容:
 
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096
 
問題三：max number of threads [1024] for user [lish] likely too low, increase to at least [2048]
 
解決：切換到root用戶，進入limits.d目錄下修改配置文件。
vi /etc/security/limits.d/90-nproc.conf 
修改如下內容：
 
* soft nproc 1024
#修改為
* soft nproc 2048
 
問題四：max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]
 
解決：切換到root用戶修改配置sysctl.conf
 
vi /etc/sysctl.conf 
添加下面配置：
vm.max_map_count=655360
並執行命令：
sysctl -p
然後，重新啟動elasticsearch，即可啟動成功。

然後在本機上輸入本機ip:9200測試即可

1. elasticsearch 5.1 安裝過程中遇到了一些問題做一些記錄。
3. 問題一：警告提示
4. [2016-12-20T22:37:28,543][INFO ][o.e.b.BootstrapCheck ] [elk-node1] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
5. [2016-12-20T22:37:28,552][ERROR][o.e.b.Bootstrap ] [elk-node1] node validation exception
6. bootstrap checks failed
7. max number of threads [1024] for user [elasticsearch] is too low, increase to at least [2048]
8. [2016-12-20T22:37:28,560][INFO ][o.e.n.Node ] [elk-node1] stopping ...
9. [2016-12-20T22:37:28,628][INFO ][o.e.n.Node ] [elk-node1] stopped
10. [2016-12-20T22:37:28,629][INFO ][o.e.n.Node ] [elk-node1] closing ...
11. [2016-12-20T22:37:28,677][INFO ][o.e.n.Node ] [elk-node1] closed
13. 報了一大串錯誤，其實只是一個警告。
15. 解決：使用心得linux版本，就不會出現此類問題了。
17. 問題二：ERROR: bootstrap checks failed
18. max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]
19. max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]
20. 解決：切換到root用戶，編輯limits.conf 添加類似如下內容
21. vi /etc/security/limits.conf
23. 添加如下內容:
25. * soft nofile 65536
26. * hard nofile 131072
27. * soft nproc 2048
28. * hard nproc 4096
30. 問題三：max number of threads [1024] for user [lish] likely too low, increase to at least [2048]
32. 解決：切換到root用戶，進入limits.d目錄下修改配置文件。
33. vi /etc/security/limits.d/90-nproc.conf
34. 修改如下內容：
36. * soft nproc 1024
37. #修改為
38. * soft nproc 2048
40. 問題四：max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]
42. 解決：切換到root用戶修改配置sysctl.conf
44. vi /etc/sysctl.conf
45. 添加下面配置：
46. vm.max_map_count=655360
47. 並執行命令：
48. sysctl -p
49. 然後，重新啟動elasticsearch，即可啟動成功。

ElasticSearch外網訪問9200端口