1、安装JDK

  1. $ yum install -y java-1.8.0-openjdk.x86_64
  3. $java -version
  4. openjdk version "1.8.0_292"
  5. OpenJDK Runtime Environment (build 1.8.0_292-b10)
  6. OpenJDK 64-Bit Server VM (build 25.292-b10, mixed mode)

2、下载安装ES软件

  1. $ cd /usr/local && wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.6.0.rpm
  3. $ rpm -ivh elasticsearch-6.6.0.rpm
  5. 警告：elasticsearch-6.6.0.rpm: 头V4 RSA/SHA512 Signature, 密钥 ID d88e42b4: NOKEY
  6. 准备中...                          ################################# [100%]
  7. Creating elasticsearch group... OK
  8. Creating elasticsearch user... OK
  9. 正在升级/安装...
  10.    1:elasticsearch-0:6.6.0-1          ################################# [100%]
  11. ### NOT starting on installation, please execute the following statements to configure elasticsearch service to start automatically using systemd
  12.  sudo systemctl daemon-reload
  13.  sudo systemctl enable elasticsearch.service
  14. ### You can start elasticsearch service by executing
  15.  sudo systemctl start elasticsearch.service
  16. Created elasticsearch keystore in /etc/elasticsearch

3、修改配置文件

  1. a、$ rpm -ql elasticsearch   #查看elasticsearch软件安装了哪些目录
  2. /etc/elasticsearch/elasticsearch.yml
  3. /etc/elasticsearch/jvm.options
  4. /etc/elasticsearch/log4j2.properties
  5. /etc/elasticsearch/role_mapping.yml
  6. /etc/elasticsearch/roles.yml
  7. /etc/elasticsearch/users
  8. /etc/elasticsearch/users_roles
  9. /etc/init.d/elasticsearch
  10. /etc/sysconfig/elasticsearch
  11. ......
  12. b、rpm -qc elasticsearch    #查看elasticsearch所有的配置文件
  13. /etc/elasticsearch/elasticsearch.yml
  14. /etc/elasticsearch/jvm.options
  15. /etc/elasticsearch/log4j2.properties
  16. /etc/elasticsearch/role_mapping.yml
  17. /etc/elasticsearch/roles.yml
  18. /etc/elasticsearch/users
  19. /etc/elasticsearch/users_roles
  20. /etc/init.d/elasticsearch
  21. /etc/sysconfig/elasticsearch
  22. /usr/lib/sysctl.d/elasticsearch.conf
  23. /usr/lib/systemd/system/elasticsearch.service
  25. c、修改配置文件
  26. $ grep "^[a-z]" /etc/elasticsearch/elasticsearch.yml
  27. path.data: /var/lib/elasticsearch
  28. path.logs: /var/log/elasticsearch
  30. 更改配置：
  31. ##节点名node.name: node-1
  32. ##数据目录   
  33. path.data: /data/elasticsearch
  34. ##日志目录
  35. path.logs: /var/log/elasticsearch
  36. ##锁内存，提前占用内存
  37. bootstrap.memory_lock: true
  38. ##网络ip，不配置默认为127.0.0.1，这样只能自己访问
  39. network.host: 192.168.100.29
  40. ##端口，默认9200
  41. http.port: 9200
  43. d、更改使用内存
  44. $ vi /etc/elasticsearch/jvm.options
  45. -Xms1g
  46. -Xmx1g

4、创建数据目录

  1. $ mkdir /data/elasticsearch
  2. $ chown -R elasticsearch:elasticsearch /data/elasticsearch/

5、启动ES

  1. systemctl daemon-reload
  2. systemctl enable elasticsearch.service
  3. systemctl start elasticsearch.service
  4. systemctl status elasticsearch.service

6、测试

  1. 启动完毕，测试发现端口未能启动。
  2. $ curl 127.0.0.1:9200
  3. curl: (7) Failed connect to 127.0.0.1:9200; 拒绝连接
  4. 您在 /var/spool/mail/root 中有新邮件
  5. $ netstat -lnupt|grep 9200
  6. $ systemctl status elasticsearch.service
  7. ● elasticsearch.service - Elasticsearch
  8.    Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
  9.    Active: failed (Result: exit-code) since 二 2021-06-22 15:43:11 CST; 2min 22s ago
  10.      Docs: http://www.elastic.co
  11.   Process: 67622 ExecStart=/usr/share/elasticsearch/bin/elasticsearch -p ${PID_DIR}/elasticsearch.pid --quiet (code=exited, status=78)
  12.  Main PID: 67622 (code=exited, status=78)
  14. 6月 22 15:43:04 d-prometheus systemd[1]: Started Elasticsearch.
  15. 6月 22 15:43:11 d-prometheus systemd[1]: elasticsearch.service: main process exited, code=exited, status=78/n/a
  16. 6月 22 15:43:11 d-prometheus systemd[1]: Unit elasticsearch.service entered failed state.
  17. 6月 22 15:43:11 d-prometheus systemd[1]: elasticsearch.service failed.
  18. [root@d-prometheus local]# tail -f /var/log/elasticsearch/elasticsearch.log
  19. [2021-06-22T15:43:11,516][INFO ][o.e.n.Node               ] [zQiAPFx] starting ...
  20. [2021-06-22T15:43:11,637][INFO ][o.e.t.TransportService   ] [zQiAPFx] publish_address {172.17.3.201:9300}, bound_addresses {172.17.3.201:9300}
  21. [2021-06-22T15:43:11,648][INFO ][o.e.b.BootstrapChecks    ] [zQiAPFx] bound or publishing to a non-loopback address, enforcing bootstrap checks
  22. [2021-06-22T15:43:11,650][ERROR][o.e.b.Bootstrap          ] [zQiAPFx] node validation exception
  23. [1] bootstrap checks failed
  24. [1]: memory locking requested for elasticsearch process but memory is not locked
  25. [2021-06-22T15:43:11,682][INFO ][o.e.n.Node               ] [zQiAPFx] stopping ...
  26. [2021-06-22T15:43:11,698][INFO ][o.e.n.Node               ] [zQiAPFx] stopped
  27. [2021-06-22T15:43:11,698][INFO ][o.e.n.Node               ] [zQiAPFx] closing ...
  28. [2021-06-22T15:43:11,709][INFO ][o.e.n.Node               ] [zQiAPFx] closed
  29. ......
  32. 查看日志发现"memory locking requested for elasticsearch process but memory is not locked",
  34. 解决方法：
  35. ### 修改启动配置文件或创建新配置文件
  36. 方法1: systemctl edit elasticsearch
  37. 方法2: vim /usr/lib/systemd/system/elasticsearch.service
  38. ### 增加如下参数
  39. [Service]
  40. LimitMEMLOCK=infinity
  42. ### 重新启动
  43. systemctl daemon-reload
  44. systemctl restart elasticsearch
  46. #查询端口
  47. $ netstat -lnupt|grep 9200
  48. tcp6       0      0 172.17.3.201:9200       :::*                    LISTEN      67918/java
  50. $ curl  172.17.3.201:9200
  51. {
  52.   "name" : "zQiAPFx",
  53.   "cluster_name" : "elasticsearch",
  54.   "cluster_uuid" : "KFqIy1PUSNSBGl6ThSyiww",
  55.   "version" : {
  56.     "number" : "6.6.0",
  57.     "build_flavor" : "default",
  58.     "build_type" : "rpm",
  59.     "build_hash" : "a9861f4",
  60.     "build_date" : "2019-01-24T11:27:09.439740Z",
  61.     "build_snapshot" : false,
  62.     "lucene_version" : "7.6.0",
  63.     "minimum_wire_compatibility_version" : "5.6.0",
  64.     "minimum_index_compatibility_version" : "5.0.0"
  65.   },
  66.   "tagline" : "You Know, for Search"
  67. }