# Setup Elasticsearch cluster mode

**URL:** <https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228>\
**Category:** Elasticsearch\
**Created:** [August 21, 2023, 11:02am UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228 "2023-08-21T11:02:20Z")\
**Posts on this page:** 15\
**Page:** 1

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 21, 2023, 11:02am UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/1 "2023-08-21T11:02:20Z")

</div>

I want to setup cluster mode between 2 linux servers

One of them will be master and data node and other one will only be a data node.

Whenever i try to setup any external IP/interfaces to transport.host, elasticsearch bootstrap checks are triggered and I am no longer able to start the elastic service.

And if transport.host is made to listen on localhost by default setting, other data-node unable to fetch the master node

---

<div class="post-metadata">

**Author:** ![johnashish](https://avatars.discourse-cdn.com/v4/letter/j/6bbea6/32.png) [@johnashish](https://discuss.elastic.co/u/johnashish)\
**Post date:** [August 21, 2023, 12:26pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/2 "2023-08-21T12:26:31Z")

</div>

Hello @HiteshSingh , please share the elasticsearch.yml file from master/data nodes and error logs from data node

---

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 21, 2023, 12:36pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/3 "2023-08-21T12:36:50Z")

</div>

**Master-node config:**

```auto
# ======================== Elasticsearch Configuration =========================

#
# ---------------------------------- Cluster -----------------------------------
#
#cluster.name: my-application
cluster.name: my-app
#
# ------------------------------------ Node ------------------------------------

node.name: myapp-dev-node-1
node.roles: [master, data]
discovery.seed_hosts: ["<linux_master_server_ip>:9300","<linux_data_server_ip>:9300"]

#elastic elasticsearch configuration
path.data: /data/elastic/search-data
path.logs: /data/elastic/search-logs

#----------------------- BEGIN SECURITY AUTO CONFIGURATION -----------------------

# Enable security features
xpack.security.enabled: true

xpack.security.enrollment.enabled: true

# Enable encryption for HTTP API client connections, such as Kibana, Logstash, and Agents
xpack.security.http.ssl:
  enabled: true
  keystore.path: certs/http.p12

# Enable encryption and mutual authentication between cluster nodes
xpack.security.transport.ssl:
  enabled: true
  verification_mode: certificate
  keystore.path: certs/elastic-certificates.p12
  truststore.path: certs/elastic-certificates.p12
# Create a new cluster with the current node only
# Additional nodes can still join the cluster later
cluster.initial_master_nodes: ["myapp-dev-node-1"]

# Allow HTTP API connections from anywhere
# Connections are encrypted and require user authentication
#http.host: 0.0.0.0
#network.host: _site_
network.host: <linux_server_ip>
http.port: 9090
transport.host: localhost
transport.port: 9300
#----------------------- END SECURITY AUTO CONFIGURATION -------------------------

```

**Data-node config:**

```auto
# ======================== Elasticsearch Configuration =========================
# ---------------------------------- Cluster -----------------------------------

cluster.name: my-app

node.name: myapp-dev-node-2
node.roles: [data]
discovery.seed_hosts: ["<linux_master_server_ip>:9300","<linux_data_server_ip>:9300"]

#elastic elasticsearch configuration
path.data: /data/elastic/search-data
path.logs: /data/elastic/search-logs

#----------------------- BEGIN SECURITY AUTO CONFIGURATION -----------------------
# Enable security features
xpack.security.enabled: true

xpack.security.enrollment.enabled: true

# Enable encryption for HTTP API client connections, such as Kibana, Logstash, and Agents
xpack.security.http.ssl:
  enabled: true
  keystore.path: certs/http.p12

# Enable encryption and mutual authentication between cluster nodes
xpack.security.transport.ssl:
  enabled: true
  verification_mode: certificate
  keystore.path: certs/elastic-certificates.p12
  truststore.path: certs/elastic-certificates.p12
# Create a new cluster with the current node only
# Additional nodes can still join the cluster later
cluster.initial_master_nodes: ["myapp-dev-node-1"]

# Allow HTTP API connections from anywhere
# Connections are encrypted and require user authentication
#http.host: 0.0.0.0
network.host: <linux_data_server_ip>
http.port: 9090
transport.host: localhost
transport.port: 9300
#----------------------- END SECURITY AUTO CONFIGURATION -------------------------

```

---

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 21, 2023, 12:40pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/4 "2023-08-21T12:40:56Z")

</div>

**Data node error logs:**

```auto
[2023-08-21T07:47:21,690][INFO][o.e.p.PluginsService] [palms-dev-node-2] loaded module [x-pack-watcher]
[2023-08-21T07:47:21,690][INFO][o.e.p.PluginsService] [palms-dev-node-2] loaded module [x-pack-write-load-forecaster]
[2023-08-21T07:47:21,690][INFO][o.e.p.PluginsService] [palms-dev-node-2] no plugins loaded
[2023-08-21T07:47:23,914][INFO][o.e.e.NodeEnvironment] [palms-dev-node-2] using [1] data paths, mounts [[/data (/dev/mapper/datavg-lv_data)]], net usable_space [135.7gb], net total_space [145.5gb], types [ext4]
[2023-08-21T07:47:23,915][INFO][o.e.e.NodeEnvironment] [palms-dev-node-2] heap size [7.6gb], compressed ordinary object pointers [true]
[2023-08-21T07:47:23,956][INFO][o.e.n.Node] [palms-dev-node-2] node name [palms-dev-node-2], node ID [JJ19xi74SAmF220q2PccLQ], cluster name [palms-dev-els], roles [data]
[2023-08-21T07:47:26,560][INFO][o.e.x.s.Security] [palms-dev-node-2] Security is enabled
[2023-08-21T07:47:26,866][INFO][o.e.x.s.a.s.FileRolesStore] [palms-dev-node-2] parsed [0] roles from file [/data/PALMS_ELS/elastic/elasticsearch/config/roles.yml]
[2023-08-21T07:47:27,245][INFO][o.e.x.s.InitialNodeSecurityAutoConfiguration] [palms-dev-node-2] Auto-configuration will not generate a password for the elastic built-in superuser, as we cannot determine if there is a terminal attached to the elasticsearch process. You can use the `bin/elasticsearch-reset-password` tool to set the password for the elastic user.
[2023-08-21T07:47:27,328][INFO][o.e.x.m.p.l.CppLogMessageHandler] [palms-dev-node-2] [controller/362110] [Main.cc@123] controller (64 bit): Version 8.6.2 (Build 0d41528b670ce1) Copyright (c) 2023 Elasticsearch BV
[2023-08-21T07:47:27,904][INFO][o.e.t.n.NettyAllocator] [palms-dev-node-2] creating NettyAllocator with the following configs: [name=elasticsearch_configured, chunk_size=1mb, suggested_max_allocation_size=1mb, factors={es.unsafe.use_netty_default_chunk_and_page_size=false, g1gc_enabled=true, g1gc_region_size=4mb}]
[2023-08-21T07:47:27,927][INFO][o.e.i.r.RecoverySettings] [palms-dev-node-2] using rate limit [40mb] with [default=40mb, read=0b, write=0b, max=0b]
[2023-08-21T07:47:27,945][DEBUG][o.e.d.SettingsBasedSeedHostsProvider] [palms-dev-node-2] using initial hosts [narvlii15373.xmp.net.intra]
[2023-08-21T07:47:27,962][INFO][o.e.d.DiscoveryModule] [palms-dev-node-2] using discovery type [multi-node] and seed hosts providers [settings]
[2023-08-21T07:47:29,128][INFO][o.e.n.Node] [palms-dev-node-2] initialized
[2023-08-21T07:47:29,129][INFO][o.e.n.Node] [palms-dev-node-2] starting ...
[2023-08-21T07:47:29,148][INFO][o.e.x.s.c.f.PersistentCache] [palms-dev-node-2] persistent cache index loaded
[2023-08-21T07:47:29,149][INFO][o.e.x.d.l.DeprecationIndexingComponent] [palms-dev-node-2] deprecation component started
[2023-08-21T07:47:29,236][INFO][o.e.t.TransportService] [palms-dev-node-2] publish_address {localhost/127.0.0.1:9300}, bound_addresses {127.0.0.1:9300}
[2023-08-21T07:47:29,358][WARN][o.e.b.BootstrapChecks] [palms-dev-node-2] max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2023-08-21T07:47:29,360][DEBUG][o.e.d.SeedHostsResolver] [palms-dev-node-2] using max_concurrent_resolvers [10], resolver timeout [5s]
[2023-08-21T07:47:29,360][INFO][o.e.c.c.ClusterBootstrapService] [palms-dev-node-2] this node has not joined a bootstrapped cluster yet; [cluster.initial_master_nodes] is set to [palms-dev-node-1]
[2023-08-21T07:47:39,372][WARN][o.e.c.c.ClusterFormationFailureHelper] [palms-dev-node-2] master not discovered yet: have discovered [{palms-dev-node-2}{JJ19xi74SAmF220q2PccLQ}{iKDLL49QT3y6BzuZgb9m4A}{palms-dev-node-2}{localhost}{127.0.0.1:9300}{d}]; discovery will continue using [10.107.79.73:9300] from hosts providers and [] from last-known cluster state; node term 0, last-accepted version 0 in term 0

```

---

<div class="post-metadata">

**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\
**Post date:** [August 21, 2023, 12:46pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/5 "2023-08-21T12:46:50Z")

</div>

> [@HiteshSingh](#):
>
> `transport.host: localhost`

This needs to be `0.0.0.0` or the private ip address of the server, if you are using `localhost` it will not be accessible by external machines, so your nodes won't be able to talk with each other.

---

<div class="post-metadata">

**Author:** ![johnashish](https://avatars.discourse-cdn.com/v4/letter/j/6bbea6/32.png) [@johnashish](https://discuss.elastic.co/u/johnashish)\
**Post date:** [August 21, 2023, 12:48pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/6 "2023-08-21T12:48:57Z")

</div>

Try to use this in your data node config and run again -  
Instead of this  
cluster.initial\_master\_nodes: ["myapp-dev-node-1"]  
Try this  
cluster.initial\_master\_nodes: ["myapp-dev-node-2"]

Also check whether connectivity is there between these VM's on mentioned transport port ?

---

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 21, 2023, 12:51pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/7 "2023-08-21T12:51:29Z")

</div>

I have already tried this but as you can see in my question whenever i try to keep transport.host to any value other than localhost it gives me this error:

```auto
[2023-08-21T08:49:46,303][INFO][o.e.p.PluginsService] [palms-dev-node-1] loaded module [x-pack-write-load-forecaster]
[2023-08-21T08:49:46,303][INFO][o.e.p.PluginsService] [palms-dev-node-1] no plugins loaded
[2023-08-21T08:49:48,790][INFO][o.e.e.NodeEnvironment] [palms-dev-node-1] using [1] data paths, mounts [[/data (/dev/mapper/datavg-lv_data)]], net usable_space [952.3gb], net total_space [999gb], types [ext4]
[2023-08-21T08:49:48,791][INFO][o.e.e.NodeEnvironment] [palms-dev-node-1] heap size [31gb], compressed ordinary object pointers [true]
[2023-08-21T08:49:48,800][INFO][o.e.n.Node] [palms-dev-node-1] node name [palms-dev-node-1], node ID [aGLeOpbUQdCkSZaul4AWww], cluster name [palms-dev-els], roles [master, data]
[2023-08-21T08:49:52,161][INFO][o.e.x.s.Security] [palms-dev-node-1] Security is enabled
[2023-08-21T08:49:52,462][INFO][o.e.x.s.a.s.FileRolesStore] [palms-dev-node-1] parsed [0] roles from file [/data/PALMS_ELS/elastic/elasticsearch/config/roles.yml]
[2023-08-21T08:49:52,824][INFO][o.e.x.s.InitialNodeSecurityAutoConfiguration] [palms-dev-node-1] Auto-configuration will not generate a password for the elastic built-in superuser, as we cannot determine if there is a terminal attached to the elasticsearch process. You can use the `bin/elasticsearch-reset-password` tool to set the password for the elastic user.
[2023-08-21T08:49:52,916][INFO][o.e.x.m.p.l.CppLogMessageHandler] [palms-dev-node-1] [controller/1287485] [Main.cc@123] controller (64 bit): Version 8.6.2 (Build 0d41528b670ce1) Copyright (c) 2023 Elasticsearch BV
[2023-08-21T08:49:53,516][INFO][o.e.t.n.NettyAllocator] [palms-dev-node-1] creating NettyAllocator with the following configs: [name=elasticsearch_configured, chunk_size=1mb, suggested_max_allocation_size=1mb, factors={es.unsafe.use_netty_default_chunk_and_page_size=false, g1gc_enabled=true, g1gc_region_size=16mb}]
[2023-08-21T08:49:53,544][INFO][o.e.i.r.RecoverySettings] [palms-dev-node-1] using rate limit [40mb] with [default=40mb, read=0b, write=0b, max=0b]
[2023-08-21T08:49:53,565][DEBUG][o.e.d.SettingsBasedSeedHostsProvider] [palms-dev-node-1] using initial hosts [narvlii15373.xmp.net.intra:9300, narvlii15490.xmp.net.intra:9300, 127.0.0.1]
[2023-08-21T08:49:53,583][INFO][o.e.d.DiscoveryModule] [palms-dev-node-1] using discovery type [multi-node] and seed hosts providers [settings]
[2023-08-21T08:49:54,851][INFO][o.e.n.Node] [palms-dev-node-1] initialized
[2023-08-21T08:49:54,852][INFO][o.e.n.Node] [palms-dev-node-1] starting ...
[2023-08-21T08:49:54,867][INFO][o.e.x.s.c.f.PersistentCache] [palms-dev-node-1] persistent cache index loaded
[2023-08-21T08:49:54,869][INFO][o.e.x.d.l.DeprecationIndexingComponent] [palms-dev-node-1] deprecation component started
[2023-08-21T08:49:54,974][INFO][o.e.t.TransportService] [palms-dev-node-1] publish_address {10.107.79.73:9300}, bound_addresses {[::]:9300}
[2023-08-21T08:49:55,083][INFO][o.e.b.BootstrapChecks] [palms-dev-node-1] bound or publishing to a non-loopback address, enforcing bootstrap checks
[2023-08-21T08:49:55,094][INFO][o.e.n.Node] [palms-dev-node-1] stopping ...
[2023-08-21T08:49:55,158][INFO][o.e.n.Node] [palms-dev-node-1] stopped
[2023-08-21T08:49:55,158][INFO][o.e.n.Node] [palms-dev-node-1] closing ...
[2023-08-21T08:49:55,168][INFO][o.e.n.Node] [palms-dev-node-1] closed
[2023-08-21T08:49:55,170][INFO][o.e.x.m.p.NativeController] [palms-dev-node-1] Native controller process has stopped - no new native processes can be started

```

---

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 21, 2023, 12:57pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/8 "2023-08-21T12:57:24Z")

</div>

tried this as well but still same data node error pasted in above trail.  
Also, I have the connectivity between the hosts on port 9300.

**Tried this from data node:**

```auto
nc -v 10.107.79.73 9300
Ncat: Version 7.91 ( https://nmap.org/ncat )
Ncat: Connected to 10.107.79.73:9300.

```

---

<div class="post-metadata">

**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\
**Post date:** [August 21, 2023, 1:04pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/9 "2023-08-21T13:04:30Z")

</div>

> [@johnashish](#):
>
> Try to use this in your data node config and run again -  
> Instead of this  
> cluster.initial\_master\_nodes: ["myapp-dev-node-1"]  
> Try this  
> cluster.initial\_master\_nodes: ["myapp-dev-node-2"]

This will not work, on a 2 node cluster only one node can be the master, in this case it is the `myapp-dev-node-1`, this is the node that needs to be used in `cluster.initial_master_nodes`.

> [@HiteshSingh](#):
>
> I have already tried this but as you can see in my question whenever i try to keep transport.host to any value other than localhost it gives me this error

From which node is this log? There is no error/warn lines on this log, just INFO.

> [@HiteshSingh](#):
>
> ```auto
> [2023-08-21T07:47:29,358][WARN][o.e.b.BootstrapChecks] [palms-dev-node-2] max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
> [2023-08-21T07:47:29,360][DEBUG][o.e.d.SeedHostsResolver] [palms-dev-node-2] using max_concurrent_resolvers [10], resolver timeout [5s]
> 
> ```

You need to fix this, the node needs to pass all the bootstrap checks. Check the [documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html#vm-max-map-count).

---

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 21, 2023, 1:26pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/10 "2023-08-21T13:26:20Z")

</div>

> [@HiteshSingh](#):
>
> `[2023-08-21T08:49:55,083][INFO][o.e.b.BootstrapChecks] [palms-dev-node-1] bound or publishing to a non-loopback address, enforcing bootstrap checks`

Alright @leandrojmp , I will try to increase this VM count and inform.  
Meanwhile i do this, Can you tell me what all IP's discovery.seed\_hosts should have in my master and data node.

---

<div class="post-metadata">

**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\
**Post date:** [August 21, 2023, 1:29pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/11 "2023-08-21T13:29:31Z")

</div>

> [@HiteshSingh](#):
>
> Can you tell me what all IP's discovery.seed\_hosts should have in my master and data node.

It is explained in the [documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery-settings.html#modules-discovery-settings), `discovery.seed_hosts` needs to have only the master-elegible nodes, so in your case just the first node.

---

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 21, 2023, 1:46pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/13 "2023-08-21T13:46:45Z")

</div>

I tried increasing VM count and that error no longer pops up in the logs but still data node unable to join the cluster:

**Data node logs:**

```auto
[2023-08-21T09:42:28,428][INFO][o.e.p.PluginsService] [palms-dev-node-2] loaded module [x-pack-write-load-forecaster]
[2023-08-21T09:42:28,428][INFO][o.e.p.PluginsService] [palms-dev-node-2] no plugins loaded
[2023-08-21T09:42:30,819][INFO][o.e.e.NodeEnvironment] [palms-dev-node-2] using [1] data paths, mounts [[/data (/dev/mapper/datavg-lv_data)]], net usable_space [135.7gb], net total_space [145.5gb], types [ext4]
[2023-08-21T09:42:30,820][INFO][o.e.e.NodeEnvironment] [palms-dev-node-2] heap size [7.6gb], compressed ordinary object pointers [true]
[2023-08-21T09:42:30,831][INFO][o.e.n.Node] [palms-dev-node-2] node name [palms-dev-node-2], node ID [MXNbQYj5RYirU4ZbsMwBRA], cluster name [palms-dev-els], roles [data]
[2023-08-21T09:42:33,927][INFO][o.e.x.s.Security] [palms-dev-node-2] Security is enabled
[2023-08-21T09:42:34,236][INFO][o.e.x.s.a.s.FileRolesStore] [palms-dev-node-2] parsed [0] roles from file [/data/PALMS_ELS/elastic/elasticsearch/config/roles.yml]
[2023-08-21T09:42:34,572][INFO][o.e.x.s.InitialNodeSecurityAutoConfiguration] [palms-dev-node-2] Auto-configuration will not generate a password for the elastic built-in superuser, as we cannot determine if there is a terminal attached to the elasticsearch process. You can use the `bin/elasticsearch-reset-password` tool to set the password for the elastic user.
[2023-08-21T09:42:34,654][INFO][o.e.x.m.p.l.CppLogMessageHandler] [palms-dev-node-2] [controller/394338] [Main.cc@123] controller (64 bit): Version 8.6.2 (Build 0d41528b670ce1) Copyright (c) 2023 Elasticsearch BV
[2023-08-21T09:42:35,241][INFO][o.e.t.n.NettyAllocator] [palms-dev-node-2] creating NettyAllocator with the following configs: [name=elasticsearch_configured, chunk_size=1mb, suggested_max_allocation_size=1mb, factors={es.unsafe.use_netty_default_chunk_and_page_size=false, g1gc_enabled=true, g1gc_region_size=4mb}]
[2023-08-21T09:42:35,266][INFO][o.e.i.r.RecoverySettings] [palms-dev-node-2] using rate limit [40mb] with [default=40mb, read=0b, write=0b, max=0b]
[2023-08-21T09:42:35,286][DEBUG][o.e.d.SettingsBasedSeedHostsProvider] [palms-dev-node-2] using initial hosts [narvlii15373.xmp.net.intra:9300]
[2023-08-21T09:42:35,304][INFO][o.e.d.DiscoveryModule] [palms-dev-node-2] using discovery type [multi-node] and seed hosts providers [settings]
[2023-08-21T09:42:36,529][INFO][o.e.n.Node] [palms-dev-node-2] initialized
[2023-08-21T09:42:36,530][INFO][o.e.n.Node] [palms-dev-node-2] starting ...
[2023-08-21T09:42:36,541][INFO][o.e.x.s.c.f.PersistentCache] [palms-dev-node-2] persistent cache index loaded
[2023-08-21T09:42:36,542][INFO][o.e.x.d.l.DeprecationIndexingComponent] [palms-dev-node-2] deprecation component started
[2023-08-21T09:42:36,638][INFO][o.e.t.TransportService] [palms-dev-node-2] publish_address {localhost/127.0.0.1:9300}, bound_addresses {127.0.0.1:9300}
[2023-08-21T09:42:36,745][DEBUG][o.e.d.SeedHostsResolver] [palms-dev-node-2] using max_concurrent_resolvers [10], resolver timeout [5s]
[2023-08-21T09:42:36,746][INFO][o.e.c.c.ClusterBootstrapService] [palms-dev-node-2] this node has not joined a bootstrapped cluster yet; [cluster.initial_master_nodes] is set to [palms-dev-node-1]
[2023-08-21T09:42:46,760][WARN][o.e.c.c.ClusterFormationFailureHelper] [palms-dev-node-2] master not discovered yet: have discovered [{palms-dev-node-2}{MXNbQYj5RYirU4ZbsMwBRA}{TU3AZ9DMS_eXTbzWbKGunQ}{palms-dev-node-2}{localhost}{127.0.0.1:9300}{d}]; discovery will continue using [10.107.79.73:9300] from hosts providers and [] from last-known cluster state; node term 0, last-accepted version 0 in term 0
[2023-08-21T09:42:56,762][WARN][o.e.c.c.ClusterFormationFailureHelper] [palms-dev-node-2] master not discovered yet: have discovered [{palms-dev-node-2}{MXNbQYj5RYirU4ZbsMwBRA}{TU3AZ9DMS_eXTbzWbKGunQ}{palms-dev-node-2}{localhost}{127.0.0.1:9300}{d}]; discovery will continue using [10.107.79.73:9300] from hosts providers and [] from last-known cluster state; node term 0, last-accepted version 0 in term 0
[2023-08-21T09:43:06,761][WARN][o.e.n.Node] [palms-dev-node-2] timed out while waiting for initial discovery state - timeout: 30s
[2023-08-21T09:43:06,763][WARN][o.e.c.c.ClusterFormationFailureHelper] [palms-dev-node-2] master not discovered yet: have discovered [{palms-dev-node-2}{MXNbQYj5RYirU4ZbsMwBRA}{TU3AZ9DMS_eXTbzWbKGunQ}{palms-dev-node-2}{localhost}{127.0.0.1:9300}{d}]; discovery will continue using [10.107.79.73:9300] from hosts providers and [] from last-known cluster state; node term 0, last-accepted version 0 in term 0
[2023-08-21T09:43:06,766][INFO][o.e.h.AbstractHttpServerTransport] [palms-dev-node-2] publish_address {10.107.78.128:9300}, bound_addresses {10.107.78.128:9300}
[2023-08-21T09:43:06,767][INFO][o.e.n.Node] [palms-dev-node-2] started {palms-dev-node-2}{MXNbQYj5RYirU4ZbsMwBRA}{TU3AZ9DMS_eXTbzWbKGunQ}{palms-dev-node-2}{localhost}{127.0.0.1:9300}{d}{xpack.installed=true}
[2023-08-21T09:43:06,883][DEBUG][o.e.d.PeerFinder] [palms-dev-node-2] address [10.107.79.73:9300], node [null], requesting [false] discovery result
org.elasticsearch.transport.ConnectTransportException: [][10.107.79.73:9300] handshake_timeout[30s]
        at org.elasticsearch.transport.TransportHandshaker.lambda$sendHandshake$1(TransportHandshaker.java:71) ~[elasticsearch-8.6.2.jar:?]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:850) ~[elasticsearch-8.6.2.jar:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
        at java.lang.Thread.run(Thread.java:1589) ~[?:?]

```

---

<div class="post-metadata">

**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\
**Post date:** [August 21, 2023, 1:58pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/14 "2023-08-21T13:58:04Z")

</div>

Is `transport.host` set to `0.0.0.0` or the server private ip address in both nodes?

What do you have in the first node logs?

---

<div class="post-metadata">

**Author:** ![HiteshSingh](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@HiteshSingh](https://discuss.elastic.co/u/HiteshSingh)\
**Post date:** [August 28, 2023, 1:16pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/15 "2023-08-28T13:16:58Z")

</div>

We need to increase vm.max\_map\_count to 262144 and this resolved my issue

> [@HiteshSingh](#):
>
> [2023-08-21T08:49:55,083][INFO][o.e.b.BootstrapChecks] [palms-dev-node-1] bound or publishing to a non-loopback address, enforcing bootstrap checks

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 25, 2023, 1:17pm UTC](https://discuss.elastic.co/t/setup-elasticsearch-cluster-mode/341228/16 "2023-09-25T13:17:15Z")

</div>

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