Elasticsearch exception [type=cluster_block_exception, reason=blocked by: [service_unavailable/1/state not recovered / initialized];]

[gsmith]

Hello && Welcome @ductc

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As for this…

@ductc

master_not_discovered_exception

Maybe try this in ES yaml file.

[root@graylog home]#   cat /etc/elasticsearch/elasticsearch.yml  | egrep -v "^\s*(#|$)"
cluster.name: graylog
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: 192.168.180.180
http.port: 9200
action.auto_create_index: false
discovery.type: single-node

Restart elasticsearch service.