ElasticSearch 8.10.2版本集群部署初体验
1 搭建集群的环境配置
ElasticSearch 8版本以上都自带JDK
OS：CentOS Linux release 7.9.2009 (Core) ElasticSearch：8.10.2 JDK：openjdk version "20.0.2" 2023-07-18节点资源配置：
服务器IP 服务器名 ES节点名称 节点角色 节点配置 10.10.0.106 kafka01 node-01 [ master, data ] CPU：4 memory:10G 10.10.0.107 kafka02 node-02 [ master, data ] CPU：4 memory:8G 10.10.0.108 kafka03 node-03 [ master, data ] CPU：4 memory:8G
2 ElasticSearch 集群建立前提
ElasticSearch集群必须至少有两个具有选举为master资格的节点，集群才能启动，所以正式使用的集群具有选举为master资格的节点必须三个或更多，否则主节点出现故障时集群无法完成切换主节点，导致集群停止运行。
3 ElasticSearch软件下载
下载地址：https://www.elastic.co/cn/downloads/elasticsearch
# 使用wget命令下载elasticsearch
wget -P /opt https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.10.2-linux-x86_64.tar.gz
4 ElasticSearch集群部署
4.1 创建elastic用户
# 创建elastic用户组
groupadd -g 666 elastic
# 创建elastic用户
useradd -u 666 -g elastic -d /home/elastic -c "elastic user" -s /bin/bash elastic
4.2 解压ElasticSearch压缩包
# 解压ElasticSearch压缩包到/opt目录
tar -zxvf elasticsearch-8.10.2-linux-x86_64.tar.gz -C /opt
]$ ll /opt
drwxr-xr-x 9 root root 155 Sep 19 16:22 elasticsearch-8.10.2
4.3 重命名为elasticsearch-8.10
# 重命名elasticsearch-8.10.2目录
]$ mv elasticsearch-8.10.2 elasticsearch-8.10
4.4 Linux 系统调优
4.4.1 ulimit系统参数
需要重启Linux服务，使ulimit系统参数生效。
sudo tee /etc/security/limits.d/21-elastic.conf <<-'EOF'
* soft nofile 1048576
* hard nofile 1048576
* soft memlock unlimited
* hard memlock unlimited
root soft nofile 1048576
root hard nofile 1048576
root soft memlock unlimited
root hard memlock unlimited
EOF
4.4.2 内核调优配置
cat << SETTINGS | sudo tee /etc/sysctl.d/70-infini.conf
fs.file-max = 10485760
fs.nr_open = 10485760
vm.max_map_count = 262145
net.core.somaxconn = 65535
net.core.netdev_max_backlog = 65535
net.core.rmem_default = 262144
net.core.wmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_max = 4194304
net.ipv4.ip_forward = 1
net.ipv4.ip_nonlocal_bind = 1
net.ipv4.ip_local_port_range = 1024 65535
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_max_tw_buckets = 300000
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 65535
net.ipv4.tcp_synack_retries = 0
net.ipv4.tcp_keepalive_intvl = 30
net.ipv4.tcp_keepalive_time = 900
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_fin_timeout = 10
net.ipv4.tcp_max_orphans = 131072
net.ipv4.tcp_rmem = 4096 4096 16777216
net.ipv4.tcp_wmem = 4096 4096 16777216
net.ipv4.tcp_mem = 786432 3145728 4194304
SETTINGS
执行下面的命令验证配置参数是否合法。
sysctl -p /etc/sysctl.d/70-infini.conf
重启系统查看ulimit配置是否生效
rebootulimit检查
[root@kafka01 ~]# ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 14990 max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 1048576 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 16000 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited
4.5 编辑ElasticSearch配置文件
4.5.1 编辑config/jvm.options
# 备份jvm.options配置文件
cp /opt/elasticsearch-8.10/config/jvm.options /opt/elasticsearch-8.10/config/jvm.options.bak
# 编辑jvm.options配置文件
vi /opt/elasticsearch-8.10/config/jvm.options
# 去掉下面这两行的注释，并且根据自己的机器配置更改jvm内存大小，本次设置内存为2g
-Xms2g
-Xmx2g
4.5.2 编辑config/elasticsearch.yml
]$ vi /opt/elasticsearch-8.10/config/elasticsearch.yml
# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
# Before you set out to tweak and tune the configuration, make sure you
# understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: es-cluster
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: node-01
#
node.roles: [ master, data ]
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /opt/elasticsearch-8.10/data
#
# Path to log files:
#
path.logs: /opt/elasticsearch-8.10/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# By default Elasticsearch is only accessible on localhost. Set a different
# address here to expose this node on the network:
#
# 允许连接IP
network.host: 0.0.0.0
#
# By default Elasticsearch listens for HTTP traffic on the first free port it
# finds starting at 9200. Set a specific HTTP port here:
#
# 网页访问端口,自定义设置为9201
http.port: 9201
#
http.cors.enabled: true
#
http.cors.allow-origin: "*"
#
# 集群内部通信端口，自定义为设置9301
transport.port: 9301
# For more information, consult the network module documentation.
#
# xpack
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: none
xpack.security.transport.ssl.keystore.path: /opt/elasticsearch-8.10/config/certs/elastic-certificates.p12
xpack.security.transport.ssl.truststore.path: /opt/elasticsearch-8.10/config/certselastic-certificates.p12
ingest.geoip.downloader.enabled: false
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when this node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
discovery.seed_hosts: ["10.10.0.106:9301", "10.10.0.107:9301", "10.10.0.108:9301"]
#
# Bootstrap the cluster using an initial set of master-eligible nodes:
#
cluster.initial_master_nodes: ["node-01", "node-02", "node-03"]
#
# For more information, consult the discovery and cluster formation module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Allow wildcard deletion of indices:
#
#action.destructive_requires_name: false
更改以下内容:
< 注：elasticsearch 8版本的参数发生改变，role.data:true不再使用，改为node.roles: [data] ># 集群名称 cluster.name: es-cluster # 节点名称 node.name: node-1 # 注意至少有两个具有选举master资格的节点 node.roles: [master,data] # 数据存储位置 path.data: /opt/elasticsearch-8.10/data # 日志存储位置 path.logs: /opt/elasticsearch-8.10/logs # 允许连接IP network.host: 0.0.0.0 # 自定义网页访问端口，默认端口为9200 http.port: 9200 # 启用网页跨域访问 http.cors.enabled: true http.cors.allow-origin: "*" # 集群内部通信端口，默认端口为9300 transport.port: 9300 # elasticsearch Master 选举成员 cluster.initial_master_nodes: ["node-1", "node-2", "node-3"] action.destructive_requires_name: false # 集群成员 discovery.seed_hosts: ["10.1.80.94:9300", "10.1.80.95:9300","10.1.80.96:9300"]
4.6 配置集群间安全访问证书密钥
仅在集群的第一台服务器node-01上执行执行
# 签发ca证书
]$ /opt//opt/elasticsearch-8.10/bin/elasticsearch-certutil ca
`【ENTER】` 什么也不用输入直接回车
`【ENTER】` 什么也不用输入直接回车
# 用ca证书签发节点证书
]$ /opt/elasticsearch-8.10/bin/elasticsearch-certutil cert --ca elastic-stack-ca.p12
`【ENTER】` 什么也不用输入直接回车
`【ENTER】` 什么也不用输入直接回车
`【ENTER】` 什么也不用输入直接回车
# 创建/opt/elasticsearch-8.10/config/certs目录
]$ mkdir -P /opt/elasticsearch-8.10/config/certs
# 将证书移动到/opt/elasticsearch-8.10/config/certs目录
]$ mv /opt/elasticsearch-8.10/config/elastic*.p12 /opt/elasticsearch-8.10/config/certs
4.7 编辑config/elasticsearch.yml添加证书密钥
将证书从
/opt/elasticsearch-8.10/config目录移动到/opt/elasticsearch-8.10/config/certs目录后修改config/elasticsearch.yml配置文件
]$ vi /opt/elasticsearch-8.10/config/elasticsearch.yml
# 添加以下参数：
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: none
xpack.security.transport.ssl.keystore.path: /opt/elasticsearch-8.10/config/certs/elastic-certificates.p12
xpack.security.transport.ssl.truststore.path: /opt/elasticsearch-8.10/config/certs/elastic-certificates.p12
ingest.geoip.downloader.enabled: false
4.8 创建剩余集群节点
将node-01节点上的
/opt/elasticsearch-8.10目录scp到其余两台节点上。复制完成后需要修改config/elasticsearch.yml配置文件。修改集群节点名称：node-01、node-02、node-03
修改节点角色（按需求更改）：
node.roles: [master,data]
node.roles: [master,data]
node.roles: [master,data]
]$ scp -r /opt/elasticsearch-8.10 root@kafka02:/opt
]$ scp -r /opt/elasticsearch-8.10 root@kafka03:/opt
4.9 修改elasticsearch-8.10目录属组权限
# 修改/opt/elasticsearch-8.10属组权限
chown -R elastic:elastic /opt/elasticsearch-8.10/
5 ElasticSearch集群节点启动停止
5.1 启动ElasticSearch集群节点
ElasticSearch服务不能使用root用户启动，必须切换到elastic用户再启动ElasticSearch服务。
分别在3台机器上启动
# 切换到elastic用户 ]$ su elastic # 进入到/opt/elasticsearch-8.10目录 ]$ cd /opt/elasticsearch-8.10 # 前台启动elasticsearch服务，可以使用Ctrl + Z中断进程 ]$ bin/elasticsearch # elasticsearch服务启动后输出账号信息和token ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Elasticsearch security features have been automatically configured! ✅ Authentication is enabled and cluster connections are encrypted. ℹ️ Password for the elastic user (reset with `bin/elasticsearch-reset-password -u elastic`): qWftAXx1HeHtIE=d5We2 ℹ️ HTTP CA certificate SHA-256 fingerprint: f1b884c1e1f04f34c9590a2934a33cb47053ef778ca370e003e3dab2ee3dd8ac ℹ️ Configure Kibana to use this cluster: • Run Kibana and click the configuration link in the terminal when Kibana starts. • Copy the following enrollment token and paste it into Kibana in your browser (valid for the next 30 minutes): eyJ2ZXIiOiI4LjEwLjIiLCJhZHIiOlsiMTAuMTAuMC4xMDA6OTIwMCJdLCJmZ3IiOiJmMWI4ODRjMWUxZjA0ZjM0Yzk1OTBhMjkzNGEzM2NiNDcwNTNlZjc3OGNhMzcwZTAwM2UzZGFiMmVlM2RkOGFjIiwia2V5IjoibXZod3pZb0JQUmVQV21aMFFEMWg6dHNpM3RfcHRSWmlJT3JvT2RXZktNUSJ9 ℹ️ Configure other nodes to join this cluster: • On this node: ⁃ Create an enrollment token with `bin/elasticsearch-create-enrollment-token -s node`. ⁃ Uncomment the transport.host setting at the end of config/elasticsearch.yml. ⁃ Restart Elasticsearch. • On other nodes: ⁃ Start Elasticsearch with `bin/elasticsearch --enrollment-token <token>`, using the enrollment token that you generated. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
5.2 修改elastic密码
如果集群搭建成功只需要在一个节点上更改即可。
-i：设置自定义密码
]$ bin/elasticsearch-reset-password -u elastic -i This tool will reset the password of the [elastic] user. You will be prompted to enter the password. Please confirm that you would like to continue [y/N]y Enter password for [elastic]: Re-enter password for [elastic]: Password for the [elastic] user successfully reset.
bin/elasticsearch-reset-password -u elasti：为elasti用户生成随机密码]$ bin/elasticsearch-reset-password -u elasti This tool will reset the password of the [elastic] user to an autogenerated value. The password will be printed in the console. Please confirm that you would like to continue [y/N]y Password for the [elastic] user successfully reset. New value: gvrAgckR9fmxqDjgX*Iy
5.3 停止elasticsearch服务
bin/elasticsearch：前台启动的
elasticsearch服务可以使用Ctrl + Z停止服务[2023-09-26T01:48:40,970][INFO ][o.e.x.s.a.f.FileUserPasswdStore] [other-server] users file [/opt/elasticsearch-8.10/config/users] changed. updating users... [2023-09-26T01:48:40,972][INFO ][o.e.x.s.a.f.FileUserRolesStore] [other-server] users roles file [/opt/elasticsearch-8.10/config/users_roles] changed. updating users roles... ^Z [1]+ Stopped bin/elasticsearch
bin/elasticsearch -d：后台启动的
elasticsearch服务，需要使用kill -9停止服务]$ ps -ef|grep elasticsearch|grep -v "grep"|awk -F" " '{ print $2 }' |xarg -i kill -9 {}
6 ElasticSearch集群相关命令
6.1 查看集群状态
]$ curl -k --user elastic:admin@123 -XGET http://10.10.0.106:9201/_cat/nodes?v
ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
10.10.0.107 34 77 0 0.03 0.09 0.13 dm * node-02
10.10.0.106 8 90 0 0.06 0.07 0.08 dm - node-01
10.10.0.108 48 80 0 0.12 0.16 0.16 dm - node-03
master列中的 * 表示为主节点
6.2 列出所有索引
# 列出所有索引
]$ curl -k --user elastic:admin@123 -XGET http://10.10.0.106:9201/_cat/indices?v
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
green open .infini_index DsgysdAhQkWFh2mGuuTrjg 1 1 0 0 496b 248b
green open .infini_rbac-role yFpRSjMdSvCmV2DNfDfsLQ 1 1 0 0 496b 248b
green open .infini_flow mkxo8c22QCmq5lkIptrzLw 1 1 0 0 496b 248b
green open .infini_agent-setting L3vfs9-pRTGO4EytGOSjPA 1 1 0 0 496b 248b
green open .infini_notification fXgzijXNTNeV9C0xFTud6Q 1 1 0 0 496b 248b
green open .infini_alert-history-00001 A_a1r7tUTMSEk1qZzS1_hg 1 1 1908 0 4.8mb 2.2mb
green open .infini_layout LFdNGL9KTei79ELFUNsFFw 1 1 6 0 99.5kb 49.7kb
green open .infini_agent rYV77XEWRMCJgZ28BndAag 1 1 0 0 496b 248b
green open .infini_host RE6O9AUPSkW14UVDl4laRg 1 1 0 0 496b 248b
green open .infini_channel L2rmNSaeSQi6BNna8jUXvA 1 1 12 0 59.1kb 29.5kb
green open .infini_view KpveoSIlQOiQaTX8-AoPCA 1 1 1 0 39.2kb 19.6kb
green open .infini_cluster H9blKu6xS_mJR7k-CPThAQ 1 1 2 0 77.9kb 38.9kb
green open .infini_credential mdWpiBn7Q6C_Ygg33cDLeA 1 1 2 0 28.7kb 14.3kb
green open .infini_entry -d2FhGB5R5e5qWHuyNpjAg 1 1 0 0 496b 248b
green open .infini_instance 26UNDHReTCiWd9kd09QDGQ 1 1 0 0 496b 248b
green open .infini_email-server gC2aArmzSjquVDDwsz1HYg 1 1 0 0 496b 248b
green open .infini_logs-00001 qtemoj7gT8mxG5smEhWbvg 1 1 0 0 496b 248b
green open .infini_activities-00001 IVyv7IVrSxGaWte_uZ7D0A 1 1 10 0 199.2kb 99.6kb
green open .infini_async_bulk_results-00001 rBb9o5j-T96nauWTc8FL-g 1 1 0 0 496b 248b
green open .infini_metrics-00001 brjM66k5TxG2a1pyzXfJfw 1 1 0 0 496b 248b
green open .infini_alert-rule KT0qvEuJS12oxHA4F0VaEQ 1 1 9 0 136.3kb 84.3kb
green open .infini_rbac-user xq6xQaO7T4SnbK418HoJBQ 1 1 1 0 17.2kb 8.6kb
green open .infini_requests_logging-00001 fIjXHsqKQZ-e9Tl8HlydpQ 1 1 0 0 496b 248b
green open .infini_router vJmjqkFlT8-Dw9m6g3hoFg 1 1 0 0 496b 248b
green open .infini_agent-node CPJP7Bf4TyCp2JT-ZgCwEA 1 1 0 0 496b 248b
green open .infini_visualization W23ch_uVSnCkUGj7fEonWg 1 1 0 0 496b 248b
green open .infini_commands GVXDtUtvTluy638nKmNS7Q 1 1 0 0 496b 248b
green open .infini_task Ds0D3heBSeet_qji3Z1L3Q 1 1 0 0 496b 248b
green open .infini_widget aEbh3NE8QgGUR1NqtQollA 1 1 8 0 58.4kb 29.2kb
green open .infini_node TaFVUb5rQQGaUsoxPFlB2A 1 1 5 1 175.1kb 86.9kb
green open .infini_alert-message 53P1bRafQ5e4qeCN0XOKmg 1 1 0 0 496b 248b
green open .infini_dashboard Yott5pYoQIy73d3ROkY3zQ 1 1 0 0 496b 248b
6.3 创建并查看索引
# 创建customertxt索引
]$ curl -k --user elastic:admin@123 -X PUT '10.10.0.106:9201/customertxt?pretty'
{
"acknowledged" : true,
"shards_acknowledged" : true,
"index" : "customertxt"
}
# 列出所有索引
]$ curl -k --user elastic:admin@123 -XGET "http://10.10.0.106:9201/_cat/indices?v"
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
green open .infini_instance 26UNDHReTCiWd9kd09QDGQ 1 1 0 0 496b 248b
green open .infini_channel L2rmNSaeSQi6BNna8jUXvA 1 1 12 0 59.1kb 29.5kb
green open .infini_rbac-role yFpRSjMdSvCmV2DNfDfsLQ 1 1 0 0 496b 248b
green open .infini_index DsgysdAhQkWFh2mGuuTrjg 1 1 0 0 496b 248b
green open .infini_agent-setting L3vfs9-pRTGO4EytGOSjPA 1 1 0 0 496b 248b
green open .infini_email-server gC2aArmzSjquVDDwsz1HYg 1 1 0 0 496b 248b
green open .infini_view KpveoSIlQOiQaTX8-AoPCA 1 1 1 0 39.2kb 19.6kb
green open .infini_commands GVXDtUtvTluy638nKmNS7Q 1 1 0 0 496b 248b
green open .infini_alert-message 53P1bRafQ5e4qeCN0XOKmg 1 1 0 0 496b 248b
green open .infini_router vJmjqkFlT8-Dw9m6g3hoFg 1 1 0 0 496b 248b
green open .infini_widget aEbh3NE8QgGUR1NqtQollA 1 1 8 0 58.4kb 29.2kb
green open .infini_alert-rule KT0qvEuJS12oxHA4F0VaEQ 1 1 9 0 136.3kb 84.3kb
green open .infini_credential mdWpiBn7Q6C_Ygg33cDLeA 1 1 2 0 28.7kb 14.3kb
green open .infini_metrics-00001 brjM66k5TxG2a1pyzXfJfw 1 1 0 0 496b 248b
green open .infini_host RE6O9AUPSkW14UVDl4laRg 1 1 0 0 496b 248b
green open .infini_layout LFdNGL9KTei79ELFUNsFFw 1 1 6 0 99.5kb 49.7kb
green open .infini_node TaFVUb5rQQGaUsoxPFlB2A 1 1 5 1 175.1kb 86.9kb
green open .infini_dashboard Yott5pYoQIy73d3ROkY3zQ 1 1 0 0 496b 248b
green open .infini_alert-history-00001 A_a1r7tUTMSEk1qZzS1_hg 1 1 1953 0 5.3mb 2.2mb
green open .infini_agent-node CPJP7Bf4TyCp2JT-ZgCwEA 1 1 0 0 496b 248b
green open .infini_visualization W23ch_uVSnCkUGj7fEonWg 1 1 0 0 496b 248b
green open .infini_requests_logging-00001 fIjXHsqKQZ-e9Tl8HlydpQ 1 1 0 0 496b 248b
green open .infini_activities-00001 IVyv7IVrSxGaWte_uZ7D0A 1 1 10 0 199.2kb 99.6kb
green open .infini_rbac-user xq6xQaO7T4SnbK418HoJBQ 1 1 1 0 17.2kb 8.6kb
green open .infini_cluster H9blKu6xS_mJR7k-CPThAQ 1 1 2 0 77.9kb 38.9kb
green open .infini_flow mkxo8c22QCmq5lkIptrzLw 1 1 0 0 496b 248b
green open customertxt SFRMTwr4Tfukxlt_TY41pg 1 1 0 0 452b 226b
green open .infini_logs-00001 qtemoj7gT8mxG5smEhWbvg 1 1 0 0 496b 248b
green open .infini_notification fXgzijXNTNeV9C0xFTud6Q 1 1 0 0 496b 248b
green open .infini_async_bulk_results-00001 rBb9o5j-T96nauWTc8FL-g 1 1 0 0 496b 248b
green open .infini_agent rYV77XEWRMCJgZ28BndAag 1 1 0 0 496b 248b
green open .infini_entry -d2FhGB5R5e5qWHuyNpjAg 1 1 0 0 496b 248b
green open .infini_task Ds0D3heBSeet_qji3Z1L3Q 1 1 0 0 496b 248b
6.4 检查节点访问是否正常
]$ curl -k --user elastic:admin@123 -XGET "http://10.10.0.106:9201/"
{
"name" : "node-01",
"cluster_name" : "es-cluster",
"cluster_uuid" : "BP9nJIEpR_ODd1tNiaqQMQ",
"version" : {
"number" : "8.10.2",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "6d20dd8ce62365be9b1aca96427de4622e970e9e",
"build_date" : "2023-09-19T08:16:24.564900370Z",
"build_snapshot" : false,
"lucene_version" : "9.7.0",
"minimum_wire_compatibility_version" : "7.17.0",
"minimum_index_compatibility_version" : "7.0.0"
},
"tagline" : "You Know, for Search"
}
7 补充点
7.1 使用systemctl管理ElasticSearch服务
创建/etc/systemd/system/elasticsearch.service配置文件
]$ vim /etc/systemd/system/elasticsearch.service ]$ cat /etc/systemd/system/elasticsearch.service [Unit] Description=elasticsearch After=network.target [Service] Type=forking # elasticsearch服务启动用户 User=elastic # elasticsearch服务启动命令 ExecStart=/opt/elasticsearch-8.10/bin/elasticsearch -d -p /opt/elasticsearch-8.10/logs/elasticsearch.pid # elasticsearch服务使用Linux资源设置 PrivateTmp=true LimitNOFILE=65536 LimitNPROC=65536 LimitAS=infinity LimitFSIZE=infinity LimitMEMLOCK=infinity TimeoutStopSec=0 KillSignal=SIGTERM KillMode=process SendSIGKILL=no SuccessExitStatus=143 [Install] WantedBy=multi-user.targetsystemctl 相关命令
# 重新加载服务配置文件 systemctl daemon-reload # 启动elasticsearch服务 systemctl start elasticsearch # 停止elasticsearch服务 systemctl stop elasticsearch # 检查elasticsearch服务状态 systemctl status elasticsearch # 设置elasticsearch开机自启动 systemctl enable elasticsearch
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