沒錯,從零開始的elasticsearch搭建教程開始了!h'h ** 原文:https://www.cnblogs.com/heermayou/p/12670662.html 那麼首先假設 你已經裝好了一個CentOS系統 ,我的是centos6.7的 1.到官網下載Elasticsearch 地 ...
沒錯,從零開始的elasticsearch搭建教程開始了!h'h **
原文:https://www.cnblogs.com/heermayou/p/12670662.html
那麼首先假設 你已經裝好了一個CentOS系統 ,我的是centos6.7的
1.到官網下載Elasticsearch
地址: https://www.elastic.co/cn/downloads/past-releases#elasticsearch
我下的是7.5.2
2.上傳壓縮包到Linux伺服器(略)
3.安裝
3.1 解壓上傳好的安裝包
tar -zxvf elasticsearch-7.5.2-linux-x86_64.tar.gz
3.2 嘗試啟動
linux中 elasticsearch不能以root用戶啟動
所以先建一個普通用戶
adduser username
更改文件夾所屬權
chown -R username ./elasticsearch-7.5.2
進入已經解壓好的elasticsearch 的目錄中
cd elasticsearch-7.5.2/
切換用戶:
su username
啟動elasticsearch
./bin/elasticsearch
這裡來說一般都會成功,如果本的配置了JAVA_HOME的環境路徑,
而且java的版本比較低的話啟動就會失敗,elasticsearch中有jdk的版本最好使用該版本的jdk
vi bin/elasticsearch
在開始的位置加入:
export JAVA_HOME=/opt/program/elasticsarch/elasticsearch-7.5.2/jdk #(此處es的jdk所在目錄)
export PATH=$JAVA_HOME/bin:$PATH
:wq 保存並退出
然後再次啟動,完美成功!
ctrl + c 關閉運行
3.3 開放遠程連接
修改 config下的 elasticsearch.ymlvi config/elasticsearch.yml 修改下麵配置: network.host: 0.0.0.0 #改為0.0.0.0對外開放,如對特定ip開放則改為指定ip http.port: 9200 #可更改埠不為9200 啟動可能會報錯: 1virtual65530is262144vi /etc/sysctl.conf 加入: vm.max_map_count=655360
然後載入參數
sysctl -p 繼續啟動可能報的錯誤: [1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535] [2]: max number of threads [1024] for user [elastic] is too low, increase to at least [4096] [3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144] [4]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk [5]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured .打開/etc/security/limits.conf,在裡面添加如下內容* soft nofile 65536
* hard nofile 65536
此處不行還要修改 /etc/security/limits.d/90-nproc.conf * soft nproc 1024 將上面修改為: * soft nproc 2048 其中*表示所有用戶 nofile表示最大文件句柄數,表示能夠打開的最大文件數目再次啟動出現下列錯誤時: ERROR: [2] bootstrap checks failed [1]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk [2]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] mu
修改elastic search.yml文件加入:
bootstrap.memory_lock: false bootstrap.system_call_filter: false
再次出現以下錯誤時: ERROR: [1] bootstrap checks failed [1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured 修改elasticsearch.yml文件加入: cluster.initial_master_nodes: ["node-1"] 再次啟動應該就ok了。。。
3.4 elasticsearch 後臺啟動
./bin/elasticsearch -d