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We have 2 Ubuntu machines on VMware hypervisor and those attached to the same virtual switch. I installed same version of ElasticSearch (7.6) on them and you can find configurations right bellow:

node-1:

cluster.name: my_elk
node.name: node-1
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
bootstrap.memory_lock: true
transport.host: 192.168.30.14
network.host: [_local_,_site_,_global_]
discovery.seed_hosts: ["192.168.30.15","192.168.30.14"]
cluster.initial_master_nodes: ["node-1", "node-2"]

node-2:

cluster.name: my_elk
node.name: node-2
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
bootstrap.memory_lock: true
transport.host: 192.168.30.15
network.host: [_local_,_site_,_global_]
discovery.seed_hosts: ["192.168.30.15","192.168.30.14"]
cluster.initial_master_nodes: ["node-1", "node-2"]

when starting them they work separately and both have a single active node, I have tried these configurations on one Linux machine with 2 containers and work correctly with the auto-discovery module. What is wrong with my configuration?

Update: log_file

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1 回答 1

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If your two nodes are both working on their own then they have each formed a one-node cluster, which means that the first time they started up they were not configured as you have shown. You cannot merge these two one-node clusters into a two-node cluster. Instead, you should start again: wipe their data paths, and then they will form a brand-new two-node cluster.

There is a note at the bottom of this page of the reference manual that covers this problem:

Elasticsearch will not merge separate clusters together after they have formed, even if you subsequently try and configure all the nodes into a single cluster. This is because there is no way to merge these separate clusters together without a risk of data loss. You can tell that you have formed separate clusters by checking the cluster UUID reported by GET / on each node. If you intended to form a single cluster then you should start again:

于 2020-03-10T20:28:13.020 回答