# New Elastic search cluster is not detecting other seed nodes **URL:** \ **Category:** Elasticsearch\ **Created:** [November 18, 2020, 9:21pm UTC](https://discuss.elastic.co/t/new-elastic-search-cluster-is-not-detecting-other-seed-nodes/255902 "2020-11-18T21:21:31Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![hello5346](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hello5346/32/68209_2.png) [@hello5346](https://discuss.elastic.co/u/hello5346)\ **Post date:** [November 18, 2020, 9:21pm UTC](https://discuss.elastic.co/t/new-elastic-search-cluster-is-not-detecting-other-seed-nodes/255902/1 "2020-11-18T21:21:31Z")
Hello All, I'm setting up a new Elasticsearch cluster with 3 nodes out of which 3 are master nodes and data nodes as well. The following is the config of the ES ``` # ======================== Elasticsearch Configuration ========================= # ---------------------------------- Cluster ----------------------------------- # # Use a descriptive name for your cluster: # cluster.name: test_cluster # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # node.name: ip-10-0-0-21 node.master: true node.data: true # # Add custom attributes to the node: # #node.attr.rack: r1 # # ----------------------------------- Paths ------------------------------------ # # Path to directory where to store the data (separate multiple locations by comma): # path.data: /var/lib/elasticsearch # # Path to log files: # path.logs: /var/log/elasticsearch bootstrap.system_call_filter: false # # ----------------------------------- Memory ----------------------------------- # # Lock the memory on startup: # #bootstrap.memory_lock: true # # Make sure that the heap size is set to about half the memory available # on the system and that the owner of the process is allowed to use this # limit. # # Elasticsearch performs poorly when the system is swapping the memory. # # ---------------------------------- Network ----------------------------------- # # Set the bind address to a specific IP (IPv4 or IPv6): # network.host: 10.0.0.21 # # Set a custom port for HTTP: # http.port: 9200 # # For more information, consult the network module documentation. # # --------------------------------- Discovery ---------------------------------- # # Pass an initial list of hosts to perform discovery when new node is started: # The default list of hosts is ["127.0.0.1", "[::1]"] # discovery.zen.ping.unicast.hosts: ["10.0.0.21", "10.0.0.22", "10.0.0.24"] cluster.initial_master_nodes: ["10.0.0.21", "10.0.0.22", "10.0.0.24"] # # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1): # #discovery.zen.minimum_master_nodes: 2 # # For more information, consult the zen discovery module documentation. # # ---------------------------------- Gateway ----------------------------------- # # Block initial recovery after a full cluster restart until N nodes are started: # #gateway.recover_after_nodes: 3 # # For more information, consult the gateway module documentation. # # ---------------------------------- Various ----------------------------------- # # Require explicit names when deleting indices: # #action.destructive_requires_name: true ``` The issue here is that even though i had 3 nodes mentioned in `discovery.zen.ping.unicast.hosts: ["10.0.0.21", "10.0.0.22", "10.0.0.24"]` But the cluster is forming with only one node the following is the logs ``` [2020-11-18T21:16:33,017][INFO][o.e.e.NodeEnvironment] [ip-10-0-0-21] using [1] data paths, mounts [[/ (/dev/sda1)]], net usable_space [185.7gb], net total_space [193.6gb], types [ext4] [2020-11-18T21:16:33,021][INFO][o.e.e.NodeEnvironment] [ip-10-0-0-21] heap size [990.7mb], compressed ordinary object pointers [true] [2020-11-18T21:16:33,182][INFO][o.e.n.Node] [ip-10-0-0-21] node name [ip-10-0-0-21], node ID [KZvV5oyHQaCpAVxbuc-Prw], cluster name [Cognizer_dev] [2020-11-18T21:16:33,183][INFO][o.e.n.Node] [ip-10-0-0-21] version[7.6.2], pid[25581], build[default/deb/ef48eb35cf30adf4db14086e8aabd07ef6fb113f/2020-03-26T06:34:37.794943Z], OS[Linux/5.4.0-1029-gcp/amd64], JVM[AdoptOpenJDK/OpenJDK 64-Bit Server VM/13.0.2/13.0.2+8] [2020-11-18T21:16:33,184][INFO][o.e.n.Node] [ip-10-0-0-21] JVM home [/usr/share/elasticsearch/jdk] [2020-11-18T21:16:33,184][INFO][o.e.n.Node] [ip-10-0-0-21] JVM arguments [-Des.networkaddress.cache.ttl=60, -Des.networkaddress.cache.negative.ttl=10, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dio.netty.allocator.numDirectArenas=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Djava.locale.providers=COMPAT, -Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -Djava.io.tmpdir=/tmp/elasticsearch-7399941801453188432, -XX:+HeapDumpOnOutOfMemoryError, -XX:HeapDumpPath=/var/lib/elasticsearch, -XX:ErrorFile=/var/log/elasticsearch/hs_err_pid%p.log, -Xlog:gc*,gc+age=trace,safepoint:file=/var/log/elasticsearch/gc.log:utctime,pid,tags:filecount=32,filesize=64m, -XX:MaxDirectMemorySize=536870912, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/etc/elasticsearch, -Des.distribution.flavor=default, -Des.distribution.type=deb, -Des.bundled_jdk=true] [2020-11-18T21:16:35,192][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [aggs-matrix-stats] [2020-11-18T21:16:35,192][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [analysis-common] [2020-11-18T21:16:35,193][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [flattened] [2020-11-18T21:16:35,193][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [frozen-indices] [2020-11-18T21:16:35,193][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [ingest-common] [2020-11-18T21:16:35,193][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [ingest-geoip] [2020-11-18T21:16:35,194][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [ingest-user-agent] [2020-11-18T21:16:35,194][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [lang-expression] [2020-11-18T21:16:35,194][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [lang-mustache] [2020-11-18T21:16:35,195][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [lang-painless] [2020-11-18T21:16:35,195][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [mapper-extras] [2020-11-18T21:16:35,195][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [parent-join] [2020-11-18T21:16:35,195][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [percolator] [2020-11-18T21:16:35,196][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [rank-eval] [2020-11-18T21:16:35,196][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [reindex] [2020-11-18T21:16:35,196][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [repository-url] [2020-11-18T21:16:35,196][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [search-business-rules] [2020-11-18T21:16:35,197][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [spatial] [2020-11-18T21:16:35,197][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [systemd] [2020-11-18T21:16:35,197][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [transform] [2020-11-18T21:16:35,198][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [transport-netty4] [2020-11-18T21:16:35,198][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [vectors] [2020-11-18T21:16:35,198][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-analytics] [2020-11-18T21:16:35,198][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-ccr] [2020-11-18T21:16:35,199][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-core] [2020-11-18T21:16:35,199][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-deprecation] [2020-11-18T21:16:35,199][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-enrich] [2020-11-18T21:16:35,200][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-graph] [2020-11-18T21:16:35,200][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-ilm] [2020-11-18T21:16:35,200][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-logstash] [2020-11-18T21:16:35,200][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-ml] [2020-11-18T21:16:35,201][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-monitoring] [2020-11-18T21:16:35,201][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-rollup] [2020-11-18T21:16:35,201][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-security] [2020-11-18T21:16:35,201][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-sql] [2020-11-18T21:16:35,202][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-voting-only-node] [2020-11-18T21:16:35,202][INFO][o.e.p.PluginsService] [ip-10-0-0-21] loaded module [x-pack-watcher] [2020-11-18T21:16:35,203][INFO][o.e.p.PluginsService] [ip-10-0-0-21] no plugins loaded [2020-11-18T21:16:38,995][INFO][o.e.x.s.a.s.FileRolesStore] [ip-10-0-0-21] parsed [0] roles from file [/etc/elasticsearch/roles.yml] [2020-11-18T21:16:39,870][INFO][o.e.x.m.p.l.CppLogMessageHandler] [ip-10-0-0-21] [controller/25714] [Main.cc@110] controller (64 bit): Version 7.6.2 (Build e06ef9d86d5332) Copyright (c) 2020 Elasticsearch BV [2020-11-18T21:16:40,564][DEBUG][o.e.a.ActionModule] [ip-10-0-0-21] Using REST wrapper from plugin org.elasticsearch.xpack.security.Security [2020-11-18T21:16:40,699][INFO][o.e.d.DiscoveryModule] [ip-10-0-0-21] using discovery type [zen] and seed hosts providers [settings] [2020-11-18T21:16:41,810][INFO][o.e.n.Node] [ip-10-0-0-21] initialized [2020-11-18T21:16:41,811][INFO][o.e.n.Node] [ip-10-0-0-21] starting ... [2020-11-18T21:16:41,987][INFO][o.e.t.TransportService] [ip-10-0-0-21] publish_address {10.0.0.21:9300}, bound_addresses {10.0.0.21:9300} [2020-11-18T21:16:42,371][INFO][o.e.b.BootstrapChecks] [ip-10-0-0-21] bound or publishing to a non-loopback address, enforcing bootstrap checks [2020-11-18T21:16:42,410][INFO][o.e.c.c.Coordinator] [ip-10-0-0-21] cluster UUID [cO2QuJrMR1e9ze3BC1XLbg] [2020-11-18T21:16:42,576][INFO][o.e.c.s.MasterService] [ip-10-0-0-21] elected-as-master ([1] nodes joined)[{ip-10-0-0-21}{KZvV5oyHQaCpAVxbuc-Prw}{GRUinyG9QvyYBc-ZGFQOog}{10.0.0.21}{10.0.0.21:9300}{dilm}{ml.machine_memory=16790884352, xpack.installed=true, ml.max_open_jobs=20} elect leader, _BECOME_MASTER_TASK_, _FINISH_ELECTION_], term: 7, version: 45, delta: master node changed {previous [], current [{ip-10-0-0-21}{KZvV5oyHQaCpAVxbuc-Prw}{GRUinyG9QvyYBc-ZGFQOog}{10.0.0.21}{10.0.0.21:9300}{dilm}{ml.machine_memory=16790884352, xpack.installed=true, ml.max_open_jobs=20}]} [2020-11-18T21:16:42,671][INFO][o.e.c.s.ClusterApplierService] [ip-10-0-0-21] master node changed {previous [], current [{ip-10-0-0-21}{KZvV5oyHQaCpAVxbuc-Prw}{GRUinyG9QvyYBc-ZGFQOog}{10.0.0.21}{10.0.0.21:9300}{dilm}{ml.machine_memory=16790884352, xpack.installed=true, ml.max_open_jobs=20}]}, term: 7, version: 45, reason: Publication{term=7, version=45} [2020-11-18T21:16:42,742][INFO][o.e.h.AbstractHttpServerTransport] [ip-10-0-0-21] publish_address {10.0.0.21:9200}, bound_addresses {10.0.0.21:9200} [2020-11-18T21:16:42,743][INFO][o.e.n.Node] [ip-10-0-0-21] started [2020-11-18T21:16:42,971][INFO][o.e.l.LicenseService] [ip-10-0-0-21] license [5f2de71e-b085-40de-8512-b62daa4f6810] mode [basic] - valid [2020-11-18T21:16:42,973][INFO][o.e.x.s.s.SecurityStatusChangeListener] [ip-10-0-0-21] Active license is now [BASIC]; Security is disabled`Preformatted text` [2020-11-18T21:16:42,988][INFO][o.e.g.GatewayService] [ip-10-0-0-21] recovered [1] indices into cluster_state [2020-11-18T21:16:43,589][INFO][o.e.c.r.a.AllocationService] [ip-10-0-0-21] Cluster health status changed from [RED] to [GREEN] (reason: [shards started [[.security-7][0]]]). ``` can anyone tell me what am i doing wrong. ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [November 18, 2020, 9:40pm UTC](https://discuss.elastic.co/t/new-elastic-search-cluster-is-not-detecting-other-seed-nodes/255902/2 "2020-11-18T21:40:41Z")
Just to confirm, you are using 7.6.2? ---
**Author:** ![hello5346](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hello5346/32/68209_2.png) [@hello5346](https://discuss.elastic.co/u/hello5346)\ **Post date:** [November 19, 2020, 4:11am UTC](https://discuss.elastic.co/t/new-elastic-search-cluster-is-not-detecting-other-seed-nodes/255902/3 "2020-11-19T04:11:48Z")
Thanks for the reply @ [Mark Walkom](https://discuss.elastic.co/u/warkolm) Yes, i'm using 7.6.2 ---
**Author:** ![hello5346](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hello5346/32/68209_2.png) [@hello5346](https://discuss.elastic.co/u/hello5346)\ **Post date:** [November 30, 2020, 4:30am UTC](https://discuss.elastic.co/t/new-elastic-search-cluster-is-not-detecting-other-seed-nodes/255902/4 "2020-11-30T04:30:26Z")
Can Anyone help me out with this? ---
**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:** [November 30, 2020, 7:05am UTC](https://discuss.elastic.co/t/new-elastic-search-cluster-is-not-detecting-other-seed-nodes/255902/5 "2020-11-30T07:05:10Z")
You should [configure seed hosts for Elasticsearch 7.x](https://www.elastic.co/guide/en/elasticsearch/reference/7.9/discovery-settings.html#discovery-settings) as `discovery.zen.ping.unicast.hosts` is only used in older versions. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 28, 2020, 7:05am UTC](https://discuss.elastic.co/t/new-elastic-search-cluster-is-not-detecting-other-seed-nodes/255902/6 "2020-12-28T07:05:19Z")
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