elasticsearch 出现master not discovered yet, this node has not previously joined a bootstrapped (v7+)

elasticsearch 出现master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster问题可能的原因。

在配置elasticsearch集群时，一直只有一个master节点，启动子节点时过几秒刷一次

[node-2] master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [node-1] to bootstrap a cluster: have discovered [{node-2}{tqfjP3ZPQai1s0TkV6DDRg}{50Yotz89TPKvHtU2U96glg}{127.0.0.1}{127.0.0.1:9300}{dilm}{ml.machine_memory=7968346112, xpack.installed=true, ml.max_open_jobs=20}]; discovery will continue using [] from hosts providers and [{node-2}{tqfjP3ZPQai1s0TkV6DDRg}{50Yotz89TPKvHtU2U96glg}{127.0.0.1}{127.0.0.1:9300}{dilm}{ml.machine_memory=7968346112, xpack.installed=true, ml.max_open_jobs=20}] from last-known cluster state; node term 0, last-accepted version 0 in term 0

在网上找了好久才发现（可能）需要在elasticsearch.yml配置时加上transport.tcp.port参数，希望对大家有帮助（本人并不知道为什么）。

贴上我的配置信息：
主节点：
http.cors.enabled: true http.cors.allow-origin: “*”
http.port: 9200
transport.tcp.port: 9300
cluster.name: my-application
node.name: node-1
node.master: true
node.data: true
network.host: 127.0.0.1
cluster.initial_master_nodes: [“node-1”]
discovery.seed_hosts: [“127.0.0.1:9300”,“127.0.0.1:8300”]
子节点：
http.port: 8200
transport.tcp.port: 8300
cluster.name: my-application
node.name: node-2
node.master: false
node.data: true
network.host: 127.0.0.1
cluster.initial_master_nodes: [“node-1”]
discovery.seed_hosts: [“127.0.0.1:9300”,“127.0.0.1:8300”]

ps:第一次写博客，有点激动。

最后

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