# The cluster cannot discover the master or other nodes **URL:** \ **Category:** Elasticsearch\ **Created:** [May 31, 2022, 5:55am UTC](https://discuss.elastic.co/t/the-cluster-cannot-discover-the-master-or-other-nodes/305997 "2022-05-31T05:55:29Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![wajika](https://avatars.discourse-cdn.com/v4/letter/w/977dab/32.png) [@wajika](https://discuss.elastic.co/u/wajika)\ **Post date:** [May 31, 2022, 5:55am UTC](https://discuss.elastic.co/t/the-cluster-cannot-discover-the-master-or-other-nodes/305997/1 "2022-05-31T05:55:29Z")
According to the prompt "**this node must discover master-eligible nodes [es-node01, es-node02, es-node03]**", es-node03 does not find other nodes. According to the results I searched, cluster.initial\_master\_nodes needs to be configured, but I have, then does this problem represent a network failure? By the way, what does " **node term 0, last-accepted version 0 in term 0**" mean? ```auto cluster.name: es node.name: es-node03 node.attr.data: hot_warm node.attr.size: 2T node.attr.location: ydy_cluster node.roles: [master, data_hot, data_warm, data_content, data, ml, transform, remote_cluster_client, ingest] path.data: /home/elasticsearch/esdata/ path.logs: /var/log/elasticsearch network.host: 0.0.0.0 http.port: 9200 discovery.seed_hosts: ["10.120.0.30:9200","10.120.0.14:9200","10.120.0.10:9200","10.120.0.8:9200","10.120.0.38:9200"] cluster.initial_master_nodes: ["es-node01","es-node02","es-node03"] #gateway.expected_nodes: 3 #gateway.recover_after_time: 20m #gateway.recover_after_data_nodes: 3 xpack.security.enabled: false xpack.monitoring.enabled: true xpack.monitoring.collection.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification_mode: certificate xpack.security.transport.ssl.keystore.path: elastic-stack-ca.p12 xpack.security.transport.ssl.truststore.path: elastic-stack-ca.p12 ``` ```auto [2022-05-31T13:21:50,534][WARN][o.e.c.c.ClusterFormationFailureHelper] [es-node03] master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [es-node01, es-node02, es-node03] to bootstrap a cluster: have discovered [{es-node03}{s4abPK_pQzSnExqpykvvSg}{bdHnoop8R2KI9DKMneNGCA}{10.120.0.10}{10.120.0.10:9300}{dhilmrstw}]; discovery will continue using [10.120.0.30:9200, 10.120.0.14:9200, 10.120.0.10:9200, 10.120.0.8:9200, 10.120.0.38:9200] from hosts providers and [{es-node03}{s4abPK_pQzSnExqpykvvSg}{bdHnoop8R2KI9DKMneNGCA}{10.120.0.10}{10.120.0.10:9300}{dhilmrstw}] from last-known cluster state; node term 0, last-accepted version 0 in term 0 [2022-05-31T13:22:00,534][WARN][o.e.c.c.ClusterFormationFailureHelper] [es-node03] master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [es-node01, es-node02, es-node03] to bootstrap a cluster: have discovered [{es-node03}{s4abPK_pQzSnExqpykvvSg}{bdHnoop8R2KI9DKMneNGCA}{10.120.0.10}{10.120.0.10:9300}{dhilmrstw}]; discovery will continue using [10.120.0.30:9200, 10.120.0.14:9200, 10.120.0.10:9200, 10.120.0.8:9200, 10.120.0.38:9200] from hosts providers and [{es-node03}{s4abPK_pQzSnExqpykvvSg}{bdHnoop8R2KI9DKMneNGCA}{10.120.0.10}{10.120.0.10:9300}{dhilmrstw}] from last-known cluster state; node term 0, last-accepted version 0 in term 0 [2022-05-31T13:22:10,535][WARN][o.e.c.c.ClusterFormationFailureHelper] [es-node03] master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [es-node01, es-node02, es-node03] to bootstrap a cluster: have discovered [{es-node03}{s4abPK_pQzSnExqpykvvSg}{bdHnoop8R2KI9DKMneNGCA}{10.120.0.10}{10.120.0.10:9300}{dhilmrstw}]; discovery will continue using [10.120.0.30:9200, 10.120.0.14:9200, 10.120.0.10:9200, 10.120.0.8:9200, 10.120.0.38:9200] from hosts providers and [{es-node03}{s4abPK_pQzSnExqpykvvSg}{bdHnoop8R2KI9DKMneNGCA}{10.120.0.10}{10.120.0.10:9300}{dhilmrstw}] from last-known cluster state; node term 0, last-accepted version 0 in term 0 [2022-05-31T13:22:11,563][WARN][o.e.d.PeerFinder] [es-node03] address [10.120.0.10:9200], node [null], requesting [false] connection failed: [][10.120.0.10:9200] handshake_timeout[30s] [2022-05-31T13:22:11,563][WARN][o.e.d.PeerFinder] [es-node03] address [10.120.0.30:9200], node [null], requesting [false] connection failed: [][10.120.0.30:9200] handshake_timeout[30s] [2022-05-31T13:22:11,564][WARN][o.e.d.PeerFinder] [es-node03] address [10.120.0.38:9200], node [null], requesting [false] connection failed: [][10.120.0.38:9200] handshake_timeout[30s] [2022-05-31T13:22:11,564][WARN][o.e.d.PeerFinder] [es-node03] address [10.120.0.8:9200], node [null], requesting [false] connection failed: [][10.120.0.8:9200] handshake_timeout[30s] [2022-05-31T13:22:12,563][WARN][o.e.d.PeerFinder] [es-node03] address [10.120.0.14:9200], node [null], requesting [false] connection failed: [][10.120.0.14:9200] handshake_timeout[30s] ``` [full log](https://drive.google.com/file/d/14lHM4928bkv87J8pb9LpIfQ-OuRrHwn3/view?usp=sharing) ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [May 31, 2022, 6:14am UTC](https://discuss.elastic.co/t/the-cluster-cannot-discover-the-master-or-other-nodes/305997/2 "2022-05-31T06:14:21Z")
> [@wajika](#): > > ```auto > discovery.seed_hosts: ["10.120.0.30:9200","10.120.0.14:9200","10.120.0.10:9200","10.120.0.8:9200","10.120.0.38:9200"] > > ``` Elasticsearch does not use HTTP or port 9200 to communicate between nodes, so remove the port number from the seed hosts. Port 9300 is used for communication within the cluster so make sure this is open. ---
**Author:** ![wajika](https://avatars.discourse-cdn.com/v4/letter/w/977dab/32.png) [@wajika](https://discuss.elastic.co/u/wajika)\ **Post date:** [May 31, 2022, 7:37am UTC](https://discuss.elastic.co/t/the-cluster-cannot-discover-the-master-or-other-nodes/305997/3 "2022-05-31T07:37:07Z")
thanks. ---
**Author:** ![wajika](https://avatars.discourse-cdn.com/v4/letter/w/977dab/32.png) [@wajika](https://discuss.elastic.co/u/wajika)\ **Post date:** [May 31, 2022, 8:28am UTC](https://discuss.elastic.co/t/the-cluster-cannot-discover-the-master-or-other-nodes/305997/4 "2022-05-31T08:28:35Z")
```auto [2022-05-31T15:58:30,020][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.8:9300], node [null], requesting [false] connection failed: [es-node04][10.120.0.8:9300] non-master-eligible node found [2022-05-31T15:58:30,952][WARN][o.e.c.c.ClusterFormationFailureHelper] [es-node05] master not discovered yet: have discovered [{es-node05}{bwiqzVz8TqOSvPzEQ-pVgA}{MNElIl_dQsGt6SEYv3qv6g}{10.120.0.38}{10.120.0.38:9300}{cdrs}]; discovery will continue using [10.120.0.7:9300, 10.120.0.24:9300, 10.120.0.31:9300, 10.120.0.8:9300, 10.120.0.22:9300] from hosts providers and [] from last-known cluster state; node term 0, last-accepted version 0 in term 0 [2022-05-31T15:58:31,020][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.8:9300], node [null], requesting [false] connection failed: [es-node04][10.120.0.8:9300] non-master-eligible node found [2022-05-31T15:58:32,020][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.8:9300], node [null], requesting [false] connection failed: [es-node04][10.120.0.8:9300] non-master-eligible node found [2022-05-31T15:58:33,002][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.7:9300], node [null], requesting [false] connection failed: [][10.120.0.7:9300] connect_exception: No route to host: /10.120.0.7:9300: No route to host [2022-05-31T15:58:33,002][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.22:9300], node [null], requesting [false] connection failed: [][10.120.0.22:9300] connect_exception: No route to host: /10.120.0.22:9300: No route to host [2022-05-31T15:58:33,003][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.24:9300], node [null], requesting [false] connection failed: [][10.120.0.24:9300] connect_exception: No route to host: /10.120.0.24:9300: No route to host [2022-05-31T15:58:33,003][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.31:9300], node [null], requesting [false] connection failed: [][10.120.0.31:9300] connect_exception: No route to host: /10.120.0.31:9300: No route to host [2022-05-31T15:58:33,020][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.8:9300], node [null], requesting [false] connection failed: [es-node04][10.120.0.8:9300] non-master-eligible node found [2022-05-31T15:58:34,020][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.8:9300], node [null], requesting [false] connection failed: [es-node04][10.120.0.8:9300] non-master-eligible node found [2022-05-31T15:58:35,020][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.8:9300], node [null], requesting [false] connection failed: [es-node04][10.120.0.8:9300] non-master-eligible node found [2022-05-31T15:58:36,020][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.8:9300], node [null], requesting [false] connection failed: [es-node04][10.120.0.8:9300] non-master-eligible node found [2022-05-31T15:58:36,074][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.7:9300], node [null], requesting [false] connection failed: [][10.120.0.7:9300] connect_exception: No route to host: /10.120.0.7:9300: No route to host [2022-05-31T15:58:36,074][WARN][o.e.d.PeerFinder] [es-node05] address [10.120.0.22:9300], node [null], requesting [false] connection failed: [][10.120.0.22:9300] connect_exception: No route to host: /10.120.0.22:9300: No route to host ``` I have 5 nodes, 3 are master, 2 are data nodes, I just modified the port, the master has succeeded, but the log of the data node still has errors. ```auto cluster.name: es node.name: es-node04 node.attr.box_type: cold node.attr.size: 4T node.attr.location: ydy_cluster node.roles: [data_cold, data_content, data, remote_cluster_client] path.data: /home/elasticsearch/esdata/ path.logs: /var/log/elasticsearch network.host: 0.0.0.0 http.port: 9200 discovery.seed_hosts: ["10.120.0.7:9300","10.120.0.24:9300","10.120.0.31:9300","10.120.0.8:9300","10.120.0.22:9300"] #cluster.initial_master_nodes: ["es-node01","es-node02","es-node03"] xpack.security.enabled: false xpack.monitoring.enabled: true xpack.monitoring.collection.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification_mode: certificate xpack.security.transport.ssl.keystore.path: elastic-stack-ca.p12 xpack.security.transport.ssl.truststore.path: elastic-stack-ca.p12 ``` ---
**Author:** ![wajika](https://avatars.discourse-cdn.com/v4/letter/w/977dab/32.png) [@wajika](https://discuss.elastic.co/u/wajika)\ **Post date:** [June 1, 2022, 6:00am UTC](https://discuss.elastic.co/t/the-cluster-cannot-discover-the-master-or-other-nodes/305997/5 "2022-06-01T06:00:32Z")
problem solved. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 29, 2022, 6:01am UTC](https://discuss.elastic.co/t/the-cluster-cannot-discover-the-master-or-other-nodes/305997/6 "2022-06-29T06:01:01Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.