Ubuntu18.04二进制安装elasticsearch

1. 什么是Elasticsearch

Elasticsearch 是位于 Elastic Stack 核心的分布式搜索和分析引擎。Logstash 和 Beats 有助于收集、聚合和丰富您的数据并将其存储在 Elasticsearch 中。Kibana 使您能够以交互方式探索、可视化和分享对数据的见解，并管理和监控堆栈。

Elasticsearch 为所有类型的数据提供近乎实时的搜索和分析。无论您拥有结构化或非结构化文本、数字数据还是地理空间数据，Elasticsearch 都能以支持快速搜索的方式高效地存储和索引它。您可以超越简单的数据检索和聚合信息来发现数据中的趋势和模式。随着您的数据和查询量的增长，Elasticsearch 的分布式特性使您的部署能够随之无缝增长。

官方地址: https://www.elastic.co/cn/downloads/past-releases/elasticsearch-7-10-1

1. 下载安装包

root@es-61:/usr/local/src# lsb_release  -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.6 LTS
Release:	18.04
Codename:	bionic

root@es-61:~# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.10.1-amd64.deb
root@es-61:/usr/local/src# mv /root/elasticsearch-7.10.1-amd64.deb  .

2. 使用dpkg安装

root@es-61:/usr/local/src# dpkg -i elasticsearch-7.10.1-amd64.deb
Selecting previously unselected package elasticsearch.
(Reading database ... 67415 files and directories currently installed.)
Preparing to unpack elasticsearch-7.10.1-amd64.deb ...
Creating elasticsearch group... OK
Creating elasticsearch user... OK
Unpacking elasticsearch (7.10.1) ...
Setting up elasticsearch (7.10.1) ...
Created elasticsearch keystore in /etc/elasticsearch/elasticsearch.keystore
Processing triggers for ureadahead (0.100.0-21) ...
Processing triggers for systemd (237-3ubuntu10.52) ...

3. 修改主配置文件

# cat /etc/elasticsearch/elasticsearch.yml
cluster.name: skywalking-es    集群名称
node.name: node-1                节点名称
network.host: 10.0.0.61         监听地址，写本机地址
http.port: 9200                      监听端口，默认为9200
discovery.seed_hosts: ["10.0.0.61"]   如果是多个节点，可以做集群选举。单实例写本机地址即可
cluster.initial_master_nodes: ["10.0.0.61"]   哪个节点可以被初始化为master节点，填写本机
action.destructive_requires_name: true     删除索引的时候必须要填写索引的完整名称，不能*去匹配

4. 启动elasticsearch

root@es-61:/usr/local/src# systemctl start elasticsearch.service
加入开机自启动
root@es-61:/usr/local/src# systemctl enable elasticsearch.service
Synchronizing state of elasticsearch.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable elasticsearch
Created symlink /etc/systemd/system/multi-user.target.wants/elasticsearch.service → /usr/lib/systemd/system/elasticsearch.service.

5. 检查端口是正常状态。

root@es-61:/usr/local/src# ss -tnlp
State      Recv-Q      Send-Q                 Local Address:Port            Peer Address:Port
LISTEN     0           128                    127.0.0.53%lo:53                   0.0.0.0:*          users:(("systemd-resolve",pid=956,fd=13))
LISTEN     0           128                          0.0.0.0:22                   0.0.0.0:*          users:(("sshd",pid=1226,fd=3))
LISTEN     0           128               [::ffff:10.0.0.61]:9200                       *:*          users:(("java",pid=1921,fd=267))
LISTEN     0           128               [::ffff:10.0.0.61]:9300                       *:*          users:(("java",pid=1921,fd=265))
LISTEN     0           128                             [::]:22                      [::]:*          users:(("sshd",pid=1226,fd=4))

6. 验证节点信息