ElasticSearch7.9.3 windows单机-集群

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本文详述了如何创建并配置Elasticsearch多节点集群，包括设置集群名称、节点名称、端口、跨域配置等，并通过Postman检查集群状态，确保所有节点正常加入并运行。

1.创建elasticsearch-cluster文件夹,在内部复制三个elasticsearch服务

2.修改集群文件目录中第一个节点的config/elasticsearch.yml配置文件

	参数	值	说明
1	cluster.name	my-application	集群名称,节点之间保持一致
2	node.name	node-1001	节点名称,集群内要唯一
3	node.master	true
4	node.data	true
5	network.host	localhost	IP
6	http:port	9201	http:端口
7	transport.tcp.port	9301	Tcp监听端口
8	discovery.zen.fd.ping_timeout
9	discovery.zen.fd.ping_retries
10	discovery.seed_hosts
11	http.cors.enabled	true	跨域配置
12	http.cors.allow-origin	“*”

3.执行 bin/elasticsearch.bat, 启动节点服务器，启动后，会自动加入指定名称的集群

4.启动node-1001后，查看集群状态

在Postman中向ES服务器发,GET: http://localhost:9201/_cluster/health

{
    "cluster_name": "my-application",
    "status": "green",
    "timed_out": false,
    "number_of_nodes": 1,
    "number_of_data_nodes": 1,
    "active_primary_shards": 0,
    "active_shards": 0,
    "relocating_shards": 0,
    "initializing_shards": 0,
    "unassigned_shards": 0,
    "delayed_unassigned_shards": 0,
    "number_of_pending_tasks": 0,
    "number_of_in_flight_fetch": 0,
    "task_max_waiting_in_queue_millis": 0,
    "active_shards_percent_as_number": 100.0
}

5.修改集群文件目录中第二个节点的config/elasticsearch.yml配置文件

	参数	值	说明
1	cluster.name	my-application	集群名称,节点之间保持一致
2	node.name	node-1002	节点名称,集群内要唯一
3	node.master	true
4	node.data	true
5	network.host	localhost	IP
6	http:port	9202	http:端口
7	transport.tcp.port	9302	Tcp监听端口
8	discovery.zen.fd.ping_timeout
9	discovery.zen.fd.ping_retries
10	discovery.seed_hosts	["localhost:9301"]
11	http.cors.enabled	true	跨域配置
12	http.cors.allow-origin	“*”

6.启动node-1002后，查看集群状态

在Postman中向ES服务器发,GET: http://localhost:9201/_cluster/health

{
    "cluster_name": "my-application",
    "status": "green",
    "timed_out": false,
    "number_of_nodes": 2,
    "number_of_data_nodes": 2,
    "active_primary_shards": 0,
    "active_shards": 0,
    "relocating_shards": 0,
    "initializing_shards": 0,
    "unassigned_shards": 0,
    "delayed_unassigned_shards": 0,
    "number_of_pending_tasks": 0,
    "number_of_in_flight_fetch": 0,
    "task_max_waiting_in_queue_millis": 0,
    "active_shards_percent_as_number": 100.0
}

7.修改集群文件目录中第三个节点的config/elasticsearch.yml配置文件

	参数	值	说明
1	cluster.name	my-application	集群名称,节点之间保持一致
2	node.name	node-1003	节点名称,集群内要唯一
3	node.master	true
4	node.data	true
5	network.host	localhost	IP
6	http:port	9203	http:端口
7	transport.tcp.port	9303	Tcp监听端口
8	discovery.zen.fd.ping_timeout		这个节点时间太短容易找不到Master
9	discovery.zen.fd.ping_retries
10	discovery.seed_hosts	["localhost:9301","localhost:9302"]
11	http.cors.enabled	true	跨域配置
12	http.cors.allow-origin	“*”

8.启动node-1003后，查看集群状态

在Postman中向ES服务器发,GET: http://localhost:9201/_cluster/health

{
    "cluster_name": "my-application",
    "status": "green",
    "timed_out": false,
    "number_of_nodes": 3,
    "number_of_data_nodes": 3,
    "active_primary_shards": 0,
    "active_shards": 0,
    "relocating_shards": 0,
    "initializing_shards": 0,
    "unassigned_shards": 0,
    "delayed_unassigned_shards": 0,
    "number_of_pending_tasks": 0,
    "number_of_in_flight_fetch": 0,
    "task_max_waiting_in_queue_millis": 0,
    "active_shards_percent_as_number": 100.0
}