问题
Starting from version 2.0 Elasticsearch binds only on the loopback interface by default (_local_ in terms of configuration).
The documentation says that there is a way to switch to another network, for example, _non_loopback_ binds to the first non-loopback interface. It works fine.
But I cannot figure out how do I combine these settings so that Elasticsearch binds on both loopback and non-loopback interfaces simultaneously?
PS. My reason is that I use Logstash on each Elasticsearch instance that connects to it via localhost, but I also want other Elasticsearch instances to see each other to form the cluster...
回答1:
For 2.0 you would need to use
network.bind_host: 0
回答2:
Go to
'<path_to_elasticsearch>/elasticsearch-2.3.4/config'
Open elasticsearch.yml
Add
network.host: 0.0.0.0
Now check which port elasticsearch is using (9200 is default), go to firewall inbound rules and add those ports.
回答3:
As of ElasticSearch 7.x, this configuration has changed yet again. for a simple single node cluster bound to loopback, local and external IPs, you essentially do this:
network.host: [_local_, _site_, _global_]
cluster.initial_master_nodes: node-1
The cluster node setting is explained here while the network host setting is in the documentation here, although it doesn't say how you would assign multiple values to network.host.
来源：https://stackoverflow.com/questions/33412549/how-to-bind-elasticsearch-2-0-on-both-loopback-and-non-loopback-interfaces