# Node Discovery Issue **URL:** \ **Category:** Elasticsearch\ **Created:** [February 11, 2020, 5:19pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833 "2020-02-11T17:19:56Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![damasu](https://avatars.discourse-cdn.com/v4/letter/d/c89c15/32.png) [@damasu](https://discuss.elastic.co/u/damasu)\ **Post date:** [February 11, 2020, 5:19pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/1 "2020-02-11T17:19:57Z")
Hi, I have created two AWS EC2 instances the first is using the following docker-compose configuration ``` elasticsearch: build: context: ./docker/elasticsearch/ dockerfile: Dockerfile args: ELK_VERSION: 7.5.1 restart: unless-stopped volumes: # - ./docker/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml:ro - elasticsearch:/usr/share/elasticsearch/data ports: - "9200:9200" - "9300:9300" environment: - network.host=0.0.0.0 - node.name=es01 - node.master=true - node.data=true - node.ingest=true - discovery.seed_hosts=aws_private_id1,aws_private_id2 - cluster.initial_master_nodes=es01,es02 - cluster.name=es-docker-cluster - bootstrap.memory_lock=true - http.cors.enabled=true - http.cors.allow-origin=* - "ES_JAVA_OPTS=-Xms512m -Xmx512m" # ELASTIC_PASSWORD: changeme # Use single node discovery in order to disable production mode and avoid bootstrap checks # see https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html # - discovery.type=single-node ``` the config.yaml is the same for both ``` xpack.license.self_generated.type: trial #xpack.security.enabled: true #xpack.monitoring.collection.enabled: true xpack.security.enabled: false xpack.monitoring.enabled: false xpack.ml.enabled: false xpack.graph.enabled: false xpack.watcher.enabled: false ``` The second node ``` elasticsearch: build: context: ./docker/elasticsearch2/ dockerfile: Dockerfile args: ELK_VERSION: 7.5.1 restart: unless-stopped volumes: # - ./docker/elasticsearch2/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml:ro - elasticsearch:/usr/share/elasticsearch/data ports: - "9200:9200" - "9300:9300" environment: - network.host=0.0.0.0 - node.name=es02 - node.master=true - node.data=true - node.ingest=true - discovery.seed_hosts=aws_private_id1,aws_private_id2 - cluster.initial_master_nodes=es01,es02 - cluster.name=es-docker-cluster - bootstrap.memory_lock=true - http.cors.enabled=true - http.cors.allow-origin=* - "ES_JAVA_OPTS=-Xms512m -Xmx512m" # - "ELASTIC_PASSWORD=changeme" # Use single node discovery in order to disable production mode and avoid bootstrap checks # see https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html # - discovery.type=single-node ``` when i try curl -XGET -u elastic:password "localhost:9200/\_cluster/health?pretty" i get ``` { "cluster_name" : "es-docker-cluster", "status" : "green", "timed_out" : false, "number_of_nodes" : 1, "number_of_data_nodes" : 1, "active_primary_shards" : 5, "active_shards" : 5, "relocating_shards" : 0, "initializing_shards" : 0, "unassigned_shards" : 0, "delayed_unassigned_shards" : 0, "number_of_pending_tasks" : 0, "number_of_in_flight_fetch" : 0, "task_max_waiting_in_queue_millis" : 0, "active_shards_percent_as_number" : 100.0 } ``` only one node showing. i can do a curl request to the aws\_private\_id of the other machine i get the same response.. 1 node So i am not sure why this the cluster is showing just one node. Any ideas? The logs show no errors. ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [February 11, 2020, 5:21pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/2 "2020-02-11T17:21:44Z")
> [@damasu](#): > > So i am not sure why this the cluster is showing just one node. Any ideas? You have set `discovery.type: single-node`, so a single-node cluster is what you get. ---
**Author:** ![damasu](https://avatars.discourse-cdn.com/v4/letter/d/c89c15/32.png) [@damasu](https://discuss.elastic.co/u/damasu)\ **Post date:** [February 11, 2020, 5:22pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/3 "2020-02-11T17:22:29Z")
no it is commented out. ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [February 11, 2020, 5:22pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/4 "2020-02-11T17:22:31Z")
Oh, you have reformatted your post and now it looks like that is commented out 🙂 ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [February 11, 2020, 5:23pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/5 "2020-02-11T17:23:56Z")
I suspect you have started these nodes up previously and allowed them to form a cluster each. [This note in the docs has more information](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery-bootstrap-cluster.html#modules-discovery-bootstrap-cluster-joining) including the steps you should take to fix it. ---
**Author:** ![damasu](https://avatars.discourse-cdn.com/v4/letter/d/c89c15/32.png) [@damasu](https://discuss.elastic.co/u/damasu)\ **Post date:** [February 11, 2020, 5:25pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/6 "2020-02-11T17:25:01Z")
will i lose the indices? ---
**Author:** ![damasu](https://avatars.discourse-cdn.com/v4/letter/d/c89c15/32.png) [@damasu](https://discuss.elastic.co/u/damasu)\ **Post date:** [February 11, 2020, 5:49pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/7 "2020-02-11T17:49:55Z")
i have to use ``` network.publish_host ``` in addition, changed all private ips to dns name and now it works. Lost all data.. no biggy just testing this out. Regards Is there a way to maintain logstash- files export? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 10, 2020, 5:58pm UTC](https://discuss.elastic.co/t/node-discovery-issue/218833/8 "2020-03-10T17:58:00Z")
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