es 7.6 集群节点配置文件

淩亂°似流年 2023-02-09 13:23 24阅读 0赞

os: centos 7.4.1708  
es: 7.6.2

三节点的es

192.168.56.121  n1
    192.168.56.122  n2
    192.168.56.123  n3

实际生产中多为 3 master node + N data node 或者 5 master node + N data node

# elasticsearch.yml #

# mkdir -p /var/lib/es/7/data;
    mkdir -p /var/lib/es/7/log;
    chown -R es:es /var/lib/es;
    
    # su - es
    $ cd /usr/elasticsearch-7.6.2/config
    $ mv elasticsearch.yml elasticsearch.yml.bak
    
    $ vi elasticsearch.yml

n1 节点的配置文件

# ---------------------------------- Cluster -----------------------------------
    # 集群中所有节点必须保持一致
    cluster.name: my-cluster
    
    # ------------------------------------ Node ------------------------------------
    # 需要随节点更改
    node.name: node-1
    node.attr.rack: r1
    node.master: true
    node.data: true
    
    # ----------------------------------- Paths ------------------------------------
    path.data: /var/lib/es/7/data
    path.logs: /var/lib/es/7/log
    
    # ----------------------------------- Index -----------------------------------
    index.number_of_shards: 20
    index.number_of_replicas: 2
    index.refresh_interval: 1s
    index.max_result_window: 1000000
    
    # ----------------------------------- Memory -----------------------------------
    bootstrap.memory_lock: true
    bootstrap.system_call_filter: false
    
    # ---------------------------------- Network -----------------------------------
    # 默认情况下，Elasticsearch 仅仅绑定回环地址，比如127.0.0.1 和[::1] 
    # 需要随节点更改
    network.host: 192.168.56.121 
    http.port: 9200
    transport.tcp.port: 9300
    
    # 开启安全防护
    http.cors.enabled: true
    http.cors.allow-origin: "*"
    
    http.cors.allow-headers: Authorization,X-Requested-With,Content-Length,Content-Type
    
    # --------------------------------- Discovery ----------------------------------
    client.transport.ping_timeout: 60s
    discovery.zen.ping.timeout: 60s
    discovery.zen.fd.ping_timeout: 60s
    discovery.zen.fd.ping_retries: 10
    discovery.zen.fd.ping_interval: 30s
    
    # 集群所有 master-eligible 节点
    # 对应旧版中的 discovery.zen.ping.unicast.hosts
    discovery.seed_hosts: ["n1:9300", "n2:9300", "n3:9300"]
    # Elasticsearch 7.0新引入的配置项
    # 集群第一次启动达到这个数量后就开始引导
    cluster.initial_master_nodes: ["node-1", "node-2", "node-3"]
    
    # 选举master 时候选节点数量,防止脑裂
    # 缺省配置是1.一个基本的原则是这里需要设置成 N/2+1, N是集群中节点的数量。
    # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
    discovery.zen.minimum_master_nodes: 2
    
    # ---------------------------------- Gateway -----------------------------------
    #设置集群可提供服务的条件：最小上线节点数
    gateway.recover_after_nodes: 2
    
    # ---------------------------------- Various -----------------------------------
    action.destructive_requires_name: true

参考:  
https://www.elastic.co/guide/en/elasticsearch/reference/7.3/important-settings.html