IP expose stratigy of Elasticsearch cluster

Elastic Stack Elasticsearch
1

I‘ve setup a cluster which contains 3 master node and 3 data node. They are:

  1. 192.168.100.1 master node
  2. 192.168.100.2 master node
  3. 192.168.100.3 master node
  4. 192.168.100.4 data node
  5. 192.168.100.5 data node
  6. 192.168.100.6 data node

Now, I want to send a request to the cluster, for example: I'd like to check the cluster healthy. My question is: which IP should I use to send the request? Is there any rule for send request?

2

You can send it to whatever node but I'd probably target one of the master elligible nodes.

I wonder though if you really need 3 dedicated master nodes for only 3 data nodes.

3

Thanks a lot @dadoonet.

4

I set 3 dedicated master for high availability. Would you have any suggestion for high availability?

5

Just build a cluster of 3 nodes. With all default roles.

6

Do you mean not to configure 'node.master' and 'node.data' ?

7

Yes. Just change settings which are needed, no more.
I mean with a 3 data node cluster. It's a different story if you have let's say a 10-15+ nodes cluster.

8

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