ElasticSearch集群搭建图文解析

192.168.0.1
192.168.0.2
192.168.0.3
192.168.0.4
192.168.0.5

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.7.0-linux-x86_64.tar.gz

# /opt是你指定的安装目录
tar -xf elasticsearch-7.7.0-linux-x86_64.tar.gz -C /opt

# /elasticsearch是指定的软连接目录,可以为空,在建立软连接是自动创建
ln -s /opt/elasticsearch-7.7.0   /opt/elasticsearch

# 集群名称
cluster.name: es-cluster
# 节点名称,注意:同一集群内节点名称不能相同
node.name: "node-1"
# 当前节点是否是主节点
node.master: true
# 当前节点是否是数据节点
node.data: true
# 是否禁用提取节点
node.ingest: false
# 一台主机能运行的节点最大数量
node.max_local_storage_nodes: 1
# 集群中符合主节点条件的节点数量, 数量为(节点数量 / 2 + 1)
discovery.zen.minimum_master_nodes: 2
# 集群自举配置, 只在首次启动集群时游泳, 集群初始化时会读取该参数去寻找符合主节点条件的节点的主机名或 IP 地址
cluster.initial_master_nodes: ["node-1","node-2"]
#cluster.initial_master_nodes: ["192.168.0.1","192.168.232.137"]
# 绑定的ip地址,当前主机的ip地址
network.bind_host: 192.168.0.1
# 节点交互的端口,注意该端口仅负责节点之间交互,无法直接访问
transport.tcp.port: 9300
# 对外服务的端口,可以根据该端口查看当前节点状态和集群状态
http.port: 9200
# 是否允许跨域
http.cors.enabled: true
# 允许跨域的地址
http.cors.allow-origin: "http://192.168.0.1:8080"
# 集群中其它节点与当前节点通信的ip地址,可以设置为当前主机ip,也可根据实际情况设置
network.publish_host: 192.168.0.1
# 设置为当前主机ip不允许外网访问,想要允许外网访问可以设置为0.0.0.0
network.host: 192.168.0.1
# 所有的主节点列表, 用于被集群发现
discovery.zen.ping.unicast.hosts: ["192.168.0.1:9300","192.168.0.2:9300"]

# 创建用户,除了root用户外,其余用户都可以存放在/home下
useradd -d /home/es es
# 赋予用户权限
chmod -R es /opt/elasticsearch

cd elasticsearch
# 切换为ES启动用户
su es
# 日志打印在终端中
./bin/elasticsearch
# 后台启动
./bin/elasticsearch -d
# 后台启动并将日志打印到文件中
nohup ./bin/elasticsearch -d &

OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.

curl 192.168.0.1:9200
{ 

"name" : "node-1",
"cluster_name" : "es-cluster",
"cluster_uuid" : "ijsTRA5iSPiS84B91-skwQ",
"version" : { 

"number" : "7.4.2",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "2f90bbf7b93631e52bafb59b3b049cb44ec25e96",
"build_date" : "2019-10-28T20:40:44.881551Z",
"build_snapshot" : false,
"lucene_version" : "8.2.0",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}

curl 192.168.0.1:9200/_cluster/state?pretty
{ 

"cluster_name" : "es-cluster",
"cluster_uuid" : "ijsTRA5iSPiS84B91-skwQ",
"version" : 23,
"state_uuid" : "BBECx15qS5iEV8TQ36Lb4Q",
# 主节点的uuid,我们可以看到当前主节点是node-2
"master_node" : "jj2lwwPTT_-RC6Hj6Hv5Ww",
"blocks" : { 
 },
# 集群的全部节点
"nodes" : { 

"jj2lwwPTT_-RC6Hj6Hv5Ww" : { 

"name" : "node-2",
"ephemeral_id" : "F_pgnQRYS_2W7CR3f-L0BQ",
"transport_address" : "192.168.232.137:9310",
"attributes" : { 

"ml.machine_memory" : "1019826176",
"ml.max_open_jobs" : "20",
"xpack.installed" : "true"
}
},
"KfUN9MUtTGCM8qMpsWX-Zw" : { 

"name" : "node-1",
"ephemeral_id" : "mjcI-PyqRnukT15-KfxVLg",
"transport_address" : "192.168.232.136:9310",
"attributes" : { 

"ml.machine_memory" : "1019826176",
"ml.max_open_jobs" : "20",
"xpack.installed" : "true"
}
}
},
"metadata" : { 

"cluster_uuid" : "ijsTRA5iSPiS84B91-skwQ",
"cluster_coordination" : { 

"term" : 2,
"last_committed_config" : [
"jj2lwwPTT_-RC6Hj6Hv5Ww"
],
"last_accepted_config" : [
"jj2lwwPTT_-RC6Hj6Hv5Ww"
],
"voting_config_exclusions" : [ ]
},
...
}
...
}

ps -ef|grep elasticsearch
kill -9 12311

PID=$(ps -ef|grep elasticsearch|grep -v grep|awk '{print $2}')
if [ -z $PID ]; then
echo "process elasticsearch not exist"
exit
else
echo "process id: $PID"
kill -9 ${PID}
echo "process elasticsearch killed"
fi
[es@node-1 opt]$ sh kill.sh
process id: 9292
process elasticsearch killed