Xenforo How To Install Elasticsearch 5.x for Xenforo

This is tutorial for installing (not upgrading) elasticsearch 5 on centos.
If I am missing something, please post here.
Without help from @eva2000 and @Xon this tutorial could not be alive.

I tried to upgrade first from 2.4 version, but ended up with strange errors, so I delete (yum remove elasticsearch) and install fresh new one.
Because of something, if you remove old one and than install new one elasticsearch, change cluster name to new one, do not use old one (you have to change it also in ACP)

Code:

rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

Code:

nano /etc/yum.repos.d/elasticsearch.repo

insert this:

Code:

[elasticsearch-5.x]
name=Elasticsearch repository for 5.x packages
baseurl=https://artifacts.elastic.co/packages/5.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

Code:

yum -y install java-1.8.0-openjdk

Code:

yum -y install elasticsearch

Code:

curl -XPUT 'http://127.0.0.1:9200/_template/default' -d'{
  "template": "*",
  "settings": {
    "number_of_shards": "1",
    "number_of_replicas": "0"
  }
}'

Code:

nano /etc/elasticsearch/elasticsearch.yml

at the end of file add this:

Code:

cluster.name: CUSTOM NAME OF YOUR CLUSTER (same name should be inserted into your XenForo field in Admin ontrol Panel)
network.host: 127.0.0.1
http.port: 9200

set how much ram you will add for elasticsearch - 512 megabytes is set in example (botx Xms and Xmx must have same value)

Code:

nano /etc/elasticsearch/jvm.options

Code:

-Xms512m
-Xmx512m

Code:

mkdir /etc/elasticsearch/scripts/

Code:

cp -a /path/to/xenforoinstall/library/XenES/_scripts/*.groovy /etc/elasticsearch/scripts/

Code:

service elasticsearch start

Code:

systemctl daemon-reload

Code:

systemctl enable elasticsearch.service

Code:

systemctl start elasticsearch.service

test if everything OK (give 1-2 minute after restarting elasticsearch)

Code:

curl -XGET '127.0.0.1:9200'

---

 

Just one notice.
@eva2000 please edit first post

Code:

curl -XPUT 'http://localhost:9200/_template/default' -d'{
  "template": "*",
  "settings": {
    "number_of_shards": "1",
    "number_of_replicas": "0"
  }
}'

Should be

Code:

curl -XPUT 'http://127.0.0.1:9200/_template/default' -d'{
  "template": "*",
  "settings": {
    "number_of_shards": "1",
    "number_of_replicas": "0"
  }
}'

You can use localhost or 127.0.0.1 but whatever you choose, must be same on all places in installing

 

This one?

Code:

curl -XPUT 'http://127.0.0.1:9200/_template/default' -d'{
  "template": "*",
  "settings": {
    "number_of_shards": "1",
    "number_of_replicas": "0"
  }
}'

 

My advice is to uninstall 2.x version and install newest one (5.6.1 or 5.6.2).
From that version you will be able to do rolling upgrade to 6.0 version when it will be stable