「Elasticsearch」- 安装(CentOS) @20210401
Elasticsearch 7.6.2 on CentOS 7.4
Elasticsearch Reference [7.6] » Install Elasticsearch with RPM
Elasticsearch Reference [7.6] » Set up Elasticsearch » Bootstrap Checks
第一步、安装 Elasticsearch、Kibana 服务
#!/bin/sh rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch cat > /etc/yum.repos.d/elasticsearch.repo <<EOF [elasticsearch] name=Elasticsearch repository for 7.x packages baseurl=https://artifacts.elastic.co/packages/7.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=0 autorefresh=1 type=rpm-md EOF yum install --enablerepo=elasticsearch elasticsearch yum install --enablerepo=elasticsearch kibana
第二步、修改 Elasticserach、Kibana 配置
Elasticsearch:
network.host: 0.0.0.0 discovery.type: single-node
Kibana:
elasticsearch.hosts: ["http://localhost:9200"]
第三步、添加 Nginx 反向代理
server { server_name es-foo.example.com; location / { proxy_pass http://127.0.0.1:5601; } }
补充说明(对于 7.6.2 版本)
通过非回环地址:如果无法与其他主机组成集群,则视为开发模式;如果能够与其他主机组成集群,则视为生产模式;
Elasticsearch 6.8.6 on CentOS 7.4
Install Elasticsearch with RPM
Set up Elasticsearch/Java (JVM) Version
第一步、配置仓库
#!/bin/sh rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch cat > /etc/yum.repos.d/elasticsearch.repo <<EOF [elasticsearch-6.x] name=Elasticsearch repository for 6.x packages baseurl=https://artifacts.elastic.co/packages/6.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md EOF
第二步、安装服务
#!/bin/sh yum install -y elasticsearch-6.8.6
第三步、配置服务
可能需要修改/etc/elasticsearch/elasticsearch.yml文件:
# 由于默认只允许localhost访问,所以需要修改配置 network.host: "your-ip-address"
第四步、启动服务
#!/bin/sh systemctl enable elasticsearch.service systemctl start elasticsearch.service
第五步、访问验证
执行curl http://localhost:9200来查看服务是否正常。如果产生类似如下的输入,则表示正常:
{ "name" : "esclus-02", "cluster_name" : "elasticsearch-cluster", "cluster_uuid" : "Mq7wyMd9Rw2nMQHhrPB-PA", "version" : { "number" : "6.8.6", "build_flavor" : "default", "build_type" : "rpm", "build_hash" : "3d9f765", "build_date" : "2019-12-13T17:11:52.013738Z", "build_snapshot" : false, "lucene_version" : "7.7.2", "minimum_wire_compatibility_version" : "5.6.0", "minimum_index_compatibility_version" : "5.0.0" }, "tagline" : "You Know, for Search" }
(执行systemctl start elasticsearch.service后,Elasticsearch会立即启动,但不会马上监听9200端口,需要等待片刻再执行该命令)
附加说明
不需要安装JDK包,根据官方文档的描述,在Elasticsearch包中捆绑JDK包,所以不需要安装。
如果你从源中安装,你将在/usr/share/elasticsearch/jdk/看到捆绑的JDK包。
Elasticsearch 6.5.3 on CentOS 6.5
Install Elasticsearch with RPM
第一步、导入证书
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch
第二步、配置仓库
# cat /etc/yum.repos.d/elasticsearch.repo [elasticsearch-6.x] name=Elasticsearch repository for 6.x packages baseurl=https://artifacts.elastic.co/packages/6.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md
第三步、安装服务
安装 Elasticsearch 服务:
yum install -y elasticsearch
安装 Kibana 服务(可选):由于 Elasticsearch 没有前端界面,只提供 REST API 接口,但是可以安装 Kibana 进行调试管理
yum install -y kibana
第四步、修改配置
在Elasticsearch中,默认监听 127.0.0.1 地址,因此外部无法访问。要解决这个问题,需要修改 /etc/elasticsearch/elasticsearch.yml 文件,使其监听所有的网口:
http.host: 0.0.0.0
如果无须 Kibana 则可以跳过该步骤。需要配置 Kibana 访问 Elasticsearch 服务。修改 /etc/kibana/kibana.yml 文件,指定 Elasticsearch 地址,以及 Kibana 监听地址:
elasticsearch.url: "http://127.0.0.1:9200" server.host: "0.0.0.0"
第五步、服务的启动与停止
启动 Elasticsearch 服务:
chkconfig --add elasticsearch # 设置服务开机启动 service elasticsearch start # 启动服务 # service elasticsearch stop # 停止服务
启动 Kibana 服务:
# 如果不需要Kibana则可以跳过该步骤 chkconfig --add kibana # 设置服务开机启动 service kibana start # 启动服务 service kibana stop # 停止服务
第六步、验证服务已经启动
验证Elasticsearch是否正常。执行命令curl http://127.0.0.1:9200,或者在浏览器中访问http://127.0.0.1:9200,输入类似如下信息表示服务正常:
{ "name" : "1b_jdUi", "cluster_name" : "elasticsearch", "cluster_uuid" : "MJCWPxjzSdmH70aYQIjhOA", "version" : { "number" : "6.5.3", "build_flavor" : "default", "build_type" : "rpm", "build_hash" : "159a78a", "build_date" : "2018-12-06T20:11:28.826501Z", "build_snapshot" : false, "lucene_version" : "7.5.0", "minimum_wire_compatibility_version" : "5.6.0", "minimum_index_compatibility_version" : "5.0.0 }, "tagline" : "You Know, for Search" }
如果不需要 Kibana 则可以跳过该步骤。浏览器访问 http://127.0.0.1:5601 检查Kibana是否正常。
常见错误汇总
#1
在修改 network.host: 0.0.0.0 参数后,产生如下错误:
[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
问题原因:
由于修改参数后,集群觉得自己在生产模式下,要求设置 discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes 参数之一。
解决办法:
设置 discovery.type: single-node 参数,使其运行在 单节点 模式。