How to stop/shut down an elasticsearch node?

Question

I want to restart an elasticsearch node with a new configuration. What is the best way to gracefully shut down an node?

Is killing the process the best way of shutting t

Answer 1

use the following command to know the pid of the node already running.

curl -XGET 'http://localhost:9200/_nodes/process'

It took me an hour to find out the way to kill the node and could finally do it after using this command in the terminal window.

Answer 2

This works for me on OSX.

pkill -f elasticsearch

Answer 3

Answer for Elasticsearch inside Docker:

Just stop the docker container. It seems to stop gracefully because it logs:

[INFO ][o.e.n.Node               ] [elastic] stopping ...

Answer 4

The Head plugin for Elasticsearch provides a great web based front end for Elasticsearch administration, including shutting down nodes. It can run any Elasticsearch commands as well.

Answer 5

Considering you have 3 nodes.

Prepare your cluster

export ES_HOST=localhost:9200

# Disable shard allocation
curl -X PUT "$ES_HOST/_cluster/settings" -H 'Content-Type: application/json' -d'
{
  "persistent": {
    "cluster.routing.allocation.enable": "none"
  }
}
'

# Stop non-essential indexing and perform a synced flush
curl -X POST "$ES_HOST/_flush/synced"

Stop elasticsearch service in each node

# check nodes
export ES_HOST=localhost:9200
curl -X GET "$ES_HOST/_cat/nodes"

# node 1
systemctl stop elasticsearch.service

# node 2
systemctl stop elasticsearch.service

# node 3
systemctl stop elasticsearch.service

Restarting cluster again

# start
systemctl start elasticsearch.service

# Reenable shard allocation once the node has joined the cluster
curl -X PUT "$ES_HOST/_cluster/settings" -H 'Content-Type: application/json' -d'
{
  "persistent": {
    "cluster.routing.allocation.enable": null
  }
}
'

Tested on Elasticseach 6.5

Source:

1. https://www.elastic.co/guide/en/elasticsearch/reference/6.5/stopping-elasticsearch.html
2. https://www.elastic.co/guide/en/elasticsearch/reference/6.5/rolling-upgrades.html

Answer 6

If you're running a node on localhost, try to use brew service stop elasticsearch

I run elasticsearch on iOS localhost.