Elasticsearch 7.2.1 安装

vi /etc/security/limits.conf
----------------------------------------------
# 修改内容
*    soft    nproc    65535
*    hard    nproc    65535
*    soft    nofile    65535
*    hard    nofile    65535

　　vi /etc/security/limits.d/20-nproc.conf
　　----------------------------------------------------------
　　# 修改内容
　　* soft nproc 65565
　　----------------------------------------------------------
　　ulimit -Sn # 查看打开文件数软限制
　　ulimit -Hn # 查看打开文件数硬限制
　　ulimit -Su # 查看打开线程软限制
　　ulimit -Hu # 查看打开线程硬限制

vi /etc/sysctl.conf
-------------------------------------------------
# 添加内容
vm.max_map_count=262144
-------------------------------------------------
sysctl -p    # 验证

cd /opt
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.2.1-linux-x86_64.tar.gz
tar -zxvf elasticsearch-7.2.1-linux-x86_64.tar.gz
mv elasticsearch-7.2.1-linux-x86_64 elasticsearch

vi config/elasticsearch.yml
-----------------------------------------------------
cluster.name: es-test
node.name: node-1
path.data: /opt/elasticsearch/data
path.logs: /opt/elasticsearch/logs
network.host: 192.168.1.11
http.port: 9200
cluster.initial_master_nodes: ["node-1"]
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true

bin/elasticsearch -d

# 参数interactive：给用户一一设置密码，auto：自动生成密码
bin/elasticsearch-setup-passwords interactive

# 查看集群健康状态
curl -XGET -u elastic:password "http://192.168.100.11:9200/_cluster/health?pretty"

cd /opt
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.2.1-linux-x86_64.tar.gz
tar -zxvf elasticsearch-7.2.1-linux-x86_64.tar.gz
mv elasticsearch-7.2.1-linux-x86_64 elasticsearch

# 如下操作在其中一个node节点执行即可，生成完证书传到集群其他节点目录/opt/elasticsearch/config
# 两条命令均一路回车即可，不需要给秘钥再添加密码。
cd /opt/elasticsearch/config
../bin/elasticsearch-certutil ca
../bin/elasticsearch-certutil cert --ca elastic-stack-ca.p12

cluster.name: es-test
node.name: node-1
path.data: /opt/elasticsearch/data
path.logs: /opt/elasticsearch/logs
network.host: 192.168.100.11
http.port: 9200
discovery.seed_hosts: ["192.168.100.11", "192.168.100.12", "192.168.100.13"]
cluster.initial_master_nodes: ["node-1","node-2","node-3"]
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.keystore.path: elastic-certificates.p12
xpack.security.transport.ssl.truststore.path: elastic-certificates.p12

bin/elasticsearch -d

# 参数interactive：给用户一一设置密码，auto：自动生成密码
bin/elasticsearch-setup-passwords interactive

# 查看集群健康状态
curl -XGET -u elastic:password "http://192.168.100.11:9200/_cluster/health?pretty"