elasticsearch 集群no known master node

为什么80%的码农都做不了架构师？>>>

It is usually handled automatically.

If autodiscovery doesn't work. Edit the elastic search config file, by enabling unicast discovery

Node 1:

    cluster.name: mycluster     node.name: "node1"     node.master: true     node.data: true     discovery.zen.ping.multicast.enabled: false     discovery.zen.ping.unicast.hosts: ["node1.example.com"]

Node 2:

    cluster.name: mycluster     node.name: "node2"     node.master: false     node.data: true     discovery.zen.ping.multicast.enabled: false     discovery.zen.ping.unicast.hosts: ["node1.example.com"]

and so on for node 3,4,5. Make node 1 master, and the rest only as data nodes.

Edit: Please note that by ES rule, if you have N nodes, then by convention, N/2+1 nodes should be masters for fail-over mechanisms They may or may not be data nodes, though.

Also, in case auto-discovery doesn't work, most probable reason is because the network doesn't allow it (and therefore disabled). If too many auto-discovery pings take place across multiple servers, the resources to manage those pings will prevent other services from running correctly.

For ex, think of a 10,000 node cluster and all 10,000 nodes doing the auto-pings.

原文链接：http://stackoverflow.com/questions/16821101/how-to-set-up-es-cluster

转载于:https://my.oschina.net/iepac/blog/547755

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