Elasticsearch: Not enough master nodes discovered during pinging

Elastic Stack Elasticsearch
1

I'm trying to setup a cluster with 4 Master nodes. After restarting the service, I've been getting the following error:

[2018-02-05T21:29:41,040][WARN ][o.e.d.z.ZenDiscovery ] [Elasticsearch-Master] not enough master nodes discovered during pinging (found [[Candidate{node={Elasticsearch-Master}{F_D4d7yvQJiQ0mXdkE2n_Q}{4hYjYChtS4aOVJXEZ7ue_A}, clusterStateVersion=-1}]], but needed [3]), pinging again

1st node: Master only
2nd node: Master + Data
3rd node: Master + Data
4th node: Master + Data

1st node config:

cluster.name: es-prod
node.name: Elasticsearch-Master
node.master: true
node.data: false

path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch

bootstrap.memory_lock: true

network.host: <private-ip_1st-node>

network.publish_host: ip-<private-ip_1st-node>.compute.internal

discovery.zen.ping.unicast.hosts: ["node1", "node2", "node3", "node4"]

discovery.zen.minimum_master_nodes: 3

gateway.recover_after_master_nodes: 3
gateway.recover_after_data_nodes: 3

action.destructive_requires_name: true

2nd node config:

cluster.name: es-prod
node.name: ${HOSTNAME}
node.master: true
node.data: true

path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch

bootstrap.memory_lock: true

network.host: 127.0.0.1

network.publish_host: ip-<private-ip_1st-node>.compute.internal

discovery.zen.ping.unicast.hosts: ["node1", "node2", "node3", "node4"]

discovery.zen.minimum_master_nodes: 3

gateway.recover_after_master_nodes: 3
gateway.recover_after_data_nodes: 3

action.destructive_requires_name: true

3rd node config:

cluster.name: es-prod
node.name: ${HOSTNAME}
node.master: true
node.data: true

path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch

bootstrap.memory_lock: true

network.host: 127.0.0.1

network.publish_host: ip-<private-ip_1st-node>.compute.internal

discovery.zen.ping.unicast.hosts: ["node1", "node2", "node3", "node4"]

discovery.zen.minimum_master_nodes: 3

gateway.recover_after_master_nodes: 3
gateway.recover_after_data_nodes: 3

action.destructive_requires_name: true

4th node config:

cluster.name: es-prod
node.name: ${HOSTNAME}
node.master: true
node.data: true

path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch

bootstrap.memory_lock: true

network.host: 127.0.0.1

network.publish_host: ip-<private-ip_1st-node>.compute.internal

discovery.zen.ping.unicast.hosts: ["node1", "node2", "node3", "node4"]

discovery.zen.minimum_master_nodes: 3

gateway.recover_after_master_nodes: 3
gateway.recover_after_data_nodes: 3

action.destructive_requires_name: true
2

You bound your nodes to localhost yet specified host names that presumably resolve to non-localhost addresses. These nodes will not be able to ping each other until you bind them to sockets reachable from each other.

3

Hey Jason,

Thank you so much for your suggestion. I was able to resolve this issue!!

4

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