es的配置discovery.seed_hosts是什么意思
时间: 2024-01-13 21:05:42 浏览: 42
discovery.seed_hosts是Elasticsearch (ES) 集群中的一个配置项,用于指定用于发现其他节点的主机列表。当一个新的节点加入到集群时,它会通过这个配置项来获取其他节点的信息,以便建立与它们的连接。
在配置文件中,你可以将discovery.seed_hosts设置为一个包含其他节点主机名或IP地址的列表。举个例子,如果你有三个节点,分别是node1、node2和node3,你可以将discovery.seed_hosts设置为["node1", "node2", "node3"]。当新的节点加入集群时,它将尝试与这些主机建立连接,并获取集群的完整拓扑信息。
通过配置discovery.seed_hosts,你可以确保新节点能够找到集群中的其他节点,并加入到集群中,从而实现高可用性和分布式数据存储。
相关问题
discovery.seed_hosts和cluster.initial_master_nodes
这两个参数是用于ElasticSearch集群配置中的。其中,discovery.seed_hosts参数定义了ElasticSearch集群中的节点发现起始节点列表。而cluster.initial_master_nodes参数定义了ElasticSearch集群中最初的主节点列表。这两个参数在ElasticSearch集群的配置中都非常重要,因为它们可以帮助确保ElasticSearch集群的稳定运行和高可用性。
discovery.seed_hosts: ["host1", "host2"]
This line of code is an example of a configuration setting in the Elasticsearch cluster.
Specifically, this line sets the list of initial seed hosts for the Elasticsearch discovery process. The discovery process is responsible for finding and connecting all nodes in the cluster. The seed hosts are the initial nodes that are used to start the discovery process, allowing the other nodes to join the cluster.
In this example, the seed hosts are specified as "host1" and "host2". These could be the hostnames or IP addresses of two nodes in the Elasticsearch cluster. When a new node starts up and looks for other nodes to join, it will use these seed hosts as a starting point to discover the other nodes in the cluster.