介绍

蝉鸣CRM 是一个全新的软件开发框架。

说明

• Debain12默认仓库不包含Elasticsearch

更新APT源Elasticsearch 官方APT 仓库

• 更新源

sudo apt update -y

• 安装 HTTPS 支持

sudo apt-get install apt-transport-https

• 导入 Elasticsearch GPG 密钥

wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo gpg --dearmor -o /usr/share/keyrings/elasticsearch-keyring.gpg

• 添加 Elasticsearch APT 源

echo "deb [signed-by=/usr/share/keyrings/elasticsearch-keyring.gpg] https://artifacts.elastic.co/packages/9.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-9.x.list

• 更新软件包列表

sudo apt update -y

安装Elasticsearch

• 安装elasticsearch

sudo apt install elasticsearch

• 验证安装

curl --cacert /etc/elasticsearch/certs/http_ca.crt -u elastic https://localhost:9200

• 启动失败错误日志

sudo journalctl -u elasticsearch --no-pager -n 50

• 查看密码

sudo grep "Password" /var/log/elasticsearch/elasticsearch.log

• 重置密码

sudo /usr/share/elasticsearch/bin/elasticsearch-reset-password -u elastic

• 安装分词器

sudo /usr/share/elasticsearch/bin/elasticsearch-plugin install analysis-icu

• 验证插件安装

sudo ls /usr/share/elasticsearch/plugins

• 编辑配置文件

vim /etc/elasticsearch/elasticsearch.yml

# elasticsearch 启动默认增加一下配置
#----------------------- BEGIN SECURITY AUTO CONFIGURATION -----------------------
#
# The following settings, TLS certificates, and keys have been automatically
# generated to configure Elasticsearch security features on 21-04-2025 03:18:56
#
# --------------------------------------------------------------------------------

# Enable security features
xpack.security.enabled: true

xpack.security.enrollment.enabled: true

# Enable encryption for HTTP API client connections, such as Kibana, Logstash, and Agents
xpack.security.http.ssl:
  enabled: true
  keystore.path: certs/http.p12

# Enable encryption and mutual authentication between cluster nodes
xpack.security.transport.ssl:
  enabled: true
  verification_mode: certificate
  keystore.path: certs/transport.p12
  truststore.path: certs/transport.p12
# Create a new cluster with the current node only
# Additional nodes can still join the cluster later
cluster.initial_master_nodes: ["DESKTOP-6551FGP"]

#----------------------- END SECURITY AUTO CONFIGURATION -------------------------

#默认开启安全校验，如需关闭修改一下配置
# 禁用安全功能（关闭密码和 TLS）
xpack.security.enabled: false

# 如果需要关闭 HTTPS（可选）
xpack.security.http.ssl:
  enabled: false

vim /etc/elasticsearch/jvm.options

# elasticsearch 启动默认占用服务器一半内存，需要根据需要调整
-Xms2g
-Xmx2g

卸载Elasticsearch

• 停止Elasticsearch服务

sudo systemctl stop elasticsearch

• 卸载Elasticsearch相关包

sudo apt purge -y elasticsearch
sudo apt autoremove -y

• 删除残留数据和配置文件

sudo rm -rf /var/lib/elasticsearch/
sudo rm -rf /etc/elasticsearch/

• 清理APT仓库

sudo rm /etc/apt/sources.list.d/elastic-9.x.list
sudo apt update

常用命令

#启动 Elasticsearch
sudo systemctl start elasticsearch
#停止 Elasticsearch
sudo systemctl stop elasticsearch
#重启 Elasticsearch
sudo systemctl restart elasticsearch
#查看 Elasticsearch 状态
sudo systemctl status elasticsearch
#开机 Elasticsearch 自启
sudo systemctl enable elasticsearch
#验证 Elasticsearch
curl -X GET "localhost:9200"