Install Xenforo CentOS 7.x How To Install Elasticsearch 7.x for Xenforo

How To Install Elasticsearch 7.x for Xenforo​

This is tutorial for installing (not upgrading) elasticsearch 7 on centos.
If I am missing something, please post here.

Delete first old one if you have installed and install fresh new one elasticsearch v7

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yum remove elasticsearch

Installing elasticsearch 7

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

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

insert this:

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[elasticsearch]
name=Elasticsearch repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

If you do not have java installed, install it (elasticsearch itself includes a bundled version of OpenJDK, but, just to be sure).
Java v11 is what you want to install. You can have both version (v.8 and v.11) but I removed v8 and installed v11

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yum remove java-1.8.0-openjdk

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yum -y install java-11-openjdk

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yum install --enablerepo=elasticsearch elasticsearch

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nano /etc/elasticsearch/elasticsearch.yml

at the end of file add this:

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cluster.name: CUSTOM NAME OF YOUR CLUSTER (same name "should" be inserted into your XenForo field in Admin Control Panel in field Elasticsearch Index Name)
network.host: localhost
http.port: 9200
node.name: ANOTHER CUSTOM NAME
cluster.initial_master_nodes: ANOTHER CUSTOM NAME (same as line above, and use all lowercase)

Also, in template /etc/elasticsearch/jvm.options change/modify the path -Djava.io.tmpdir=

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-Djava.io.tmpdir=/home/elasticsearch

Then (thanks @rdan )

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mkdir /home/elasticsearch

and

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chown -R elasticsearch:elasticsearch /home/elasticsearch/

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

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nano /etc/elasticsearch/jvm.options

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-Xms512m
-Xmx512m

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service elasticsearch start

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systemctl daemon-reload

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systemctl enable elasticsearch.service

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systemctl start elasticsearch.service

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

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curl -XGET 'localhost:9200'

If everything OK, you will see something like this in your CLI

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# curl -XGET 'localhost:9200'
{
  "name" : "xxxx",
  "cluster_name" : "xxxxx",
  "cluster_uuid" : "4nAffvfpSGG-RE4ou1ttFA",
  "version" : {
    "number" : "7.6.0",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "7f634e9f44834fbc12724506cc1da681b0c3b1e3",
    "build_date" : "2020-02-06T00:09:00.449973Z",
    "build_snapshot" : false,
    "lucene_version" : "8.4.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

Also, just in case run command and choose Java 11 (if it will list more than 1 java version):

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alternatives --config java

Also, it is better that you not use shard replica if Elasticsearch is on same server.
So for make by default no replica shards, run this command

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curl -XPUT "localhost:9200/_template/all" -H'Content-Type: application/json' -d'
{
  "template": "*",
  "settings": {
    "number_of_replicas": 0,
    "number_of_shards": 1
  }
}
'

To see if you have unassigned replica shards run:

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curl -s -XGET http://localhost:9200/_cat/shards | fgrep UNASSIGNED

To delete unassigned replica shards run:

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curl -XGET http://localhost:9200/_cat/shards | grep UNASSIGNED | awk {'print $1'} | xargs -i curl -XDELETE "http://localhost:9200/{}"

Then deleted the index. After that go to ElasticSearch Setup in Xenforo ACP then rebuilt the index without deleting.

---

Minimum version of XenForo Enhanced Search you have installed for elasticsearch 7 is 2.0 I think!

After you installed elastic search, configure relevant options for enhanced search in your Xenforo ACP and rebuild index (all).
It is better and faster to rebuild index through cli. So:

Trunucate old index first (if you have it):

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cd /PATH/TO/YOUR/XENFERO/INSTALL/public/

// SOMETHING LIKE: cd /home/nginx/domains/your_domain.com/public/

and then

Rebuild search with trunucating index before that

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php cmd.php xf-rebuild:search --truncate

or just rebuild without trunucating index

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php cmd.php xf-rebuild:search

And how it looks in elasticsearch setup page in xenforo ACP



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It is specifed

This?

For me I think same, because my forum is not so big (300000 posts, 1000 active users in month)

 

Edited first post.
Thanks