# Elasticsearch 7.6 Cluster Configuration

**URL:** <https://discuss.elastic.co/t/elasticsearch-7-6-cluster-configuration/222438>\
**Category:** Elasticsearch\
**Created:** [March 6, 2020, 10:37am UTC](https://discuss.elastic.co/t/elasticsearch-7-6-cluster-configuration/222438 "2020-03-06T10:37:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![northmilo](https://avatars.discourse-cdn.com/v4/letter/n/848f3c/32.png) [@northmilo](https://discuss.elastic.co/u/northmilo)\
**Post date:** [March 6, 2020, 10:37am UTC](https://discuss.elastic.co/t/elasticsearch-7-6-cluster-configuration/222438/1 "2020-03-06T10:37:09Z")

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Hi, I am having issue with Elasticsearch 7.6 cluster configuration. Cluser status is RED.  
curl -XGET master1:9200/\_cat/nodes prints: 10.69.61.201 8 63 0 0.00 0.01 0.05 ilm \* master1.ela.soc.xxx  
curl -XGET data1:9200/\_cat/nodes prints: **nothing**  
data1 node log: join validation on cluster state with a different cluster uuid gb9uQwICTuGyYnjk63m1Jw than local cluster uuid uSFkkdgCQJWduLjbbLgo3w, rejecting  
Please advise.

Setup:  
3 Master Nodes + 3 Data nodes  
elasticsearch.yml

# ======================== Elasticsearch Configuration =========================

# 

# NOTE: Elasticsearch comes with reasonable defaults for most settings.

# Before you set out to tweak and tune the configuration, make sure you

# understand what are you trying to accomplish and the consequences.

# 

# The primary way of configuring a node is via this file. This template lists

# the most important settings you may want to configure for a production cluster.

# 

# Please consult the documentation for further information on configuration options:

# [https://www.elastic.co/guide/en/elasticsearch/reference/index.html](https://www.elastic.co/guide/en/elasticsearch/reference/index.html)

# 

# ---------------------------------- Cluster -----------------------------------

# 

# Use a descriptive name for your cluster:

# 

cluster.name: ELA.SOC.XXX

# 

# ------------------------------------ Node ------------------------------------

# 

# Use a descriptive name for the node:

# 

node.name: master1.ela.soc.xxx

# 

# Add custom attributes to the node:

# 

node.attr.rack: master1

# 

# Define node 1 as master node

# 

node.master: true

# 

node.data: false

# 

# ----------------------------------- 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

# 

# ----------------------------------- Memory -----------------------------------

# 

# Lock the memory on startup:

# 

#bootstrap.mlockall: 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: 10.69.61.201

# 

# 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 this node is started:

# The default list of hosts is ["127.0.0.1", "[::1]"]

# 

discovery.seed\_hosts: ["10.69.61.201", "10.69.61.202", "10.69.61.203", "10.69.61.211", "10.69.61.212", "10.69.61.213"]

# 

# Bootstrap the cluster using an initial set of master-eligible nodes:

# 

cluster.initial\_master\_nodes: ["10.69.61.201", "10.69.61.202", "10.69.61.203"]

# 

# For more information, consult the discovery and cluster formation module documentation.

# 

discovery.zen.minimum\_master\_nodes: 2

# 

# ---------------------------------- Gateway -----------------------------------

# 

# Block initial recovery after a full cluster restart until N nodes are started:

# 

gateway.expected\_nodes: 6  
gateway.expected\_master\_nodes: 3  
gateway.expected\_data\_nodes: 3

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

#

---

<div class="post-metadata">

**Author:** ![northmilo](https://avatars.discourse-cdn.com/v4/letter/n/848f3c/32.png) [@northmilo](https://discuss.elastic.co/u/northmilo)\
**Post date:** [March 6, 2020, 11:35am UTC](https://discuss.elastic.co/t/elasticsearch-7-6-cluster-configuration/222438/2 "2020-03-06T11:35:22Z")

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RESOLVED - stop elasticsearch.service and delete data from /var/lib/elasticsearch/\* or simply data path.

---

<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:** [April 3, 2020, 11:35am UTC](https://discuss.elastic.co/t/elasticsearch-7-6-cluster-configuration/222438/3 "2020-04-03T11:35:34Z")

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Closed on April 3, 2020, 11:35am UTC

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