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Elasticsearch

Elasticsearch is a distributed, RESTful, free/open source search server based on Apache Lucene.” Elasticsearch brings faster search, better search and some Natural Language Processing features.

It is interoperable with Tiki, starting in Tiki12.



1.1. Features enabled by Elasticsearch


1.2. How to configure

Configurable from tiki-admin.php?page=search
Configurable from tiki-admin.php?page=search


1.3. One server vs a cluster

Elasticsearch can be installed as a cluster of servers but can also run on the same server as Tiki. If you have a very high volume of content and have performance issues, you can install on a separate server, set up a cluster or get it as SaaS. You should not install Elasticsearch on a server that has a small amount of RAM (ex.: 1 gig)

1.4. Support matrix

Elasticsearch 1.x Tiki 12.x LTS with Faceted search OK
Elasticsearch 1.x Tiki 12.x LTS without Faceted search OK
Elasticsearch 1.x Tiki 15.x LTS with Faceted search OK
Elasticsearch 1.x Tiki 15.x LTS without Faceted search OK
Elasticsearch 2.x Tiki 12.x LTS with Faceted search NOT OK fixed for 15.3
Elasticsearch 2.x Tiki 12.x LTS without Faceted search OK
Elasticsearch 2.x Tiki 15.x LTS with Faceted search NOT OK fixed for 15.3
Elasticsearch 2.x Tiki 15.x LTS without Faceted search OK


Tiki 17.x supports both Elasticsearch 2.x and 5.x Related commits:

Since ES automatically updates 2.x index to 5.x first time it starts - you can see some errors then. First time it rebuilds index might also show errors due to the automatic upgrade problems. However, once it builds the index on 5.x, then further rebuilds must not have errors. So, 2 index rebuilds after upgrade is the safest path to go.


1.5. Factoids



1.6. Video

[+]

1.7. Installation


1.8. Peculiarities

See: https://doc.tiki.org/LIST+-+filter+command#Peculiarities_for_Elasticsearch

1.9. GUI


1.10. Kibana

Kibana: https://www.elastic.co/products/kibana. Some installation notes:
I mostly followed these instructions but haven’t got Logstash working yet, and I already had Apache installed so didn’t use Nginx, but added this extra apache config file: /usr/local/apache/conf/includes/pre_virtualhost_global.conf

ProxyRequests On

ProxyPass /app/kibana http://127.0.0.1:5601/app/kibana
ProxyPassReverse /app/kibana http://127.0.0.1:5601/app/kibana

ProxyPass /bundles http://127.0.0.1:5601/bundles
ProxyPassReverse /bundles http://127.0.0.1:5601/bundles

ProxyPass /elasticsearch http://127.0.0.1:9200/
ProxyPassReverse /elasticsearch http://127.0.0.1:9200/

# One of these blocks is probably redundant, and you need to make the htpasswd.users file yourself
<Directory /opt/kibana>
    Order deny,allow
    Allow from all
    AuthType Basic
    AuthName "Restricted Area"
    AuthUserFile /opt/kibana/config/htpasswd.users
    Require valid-user
</Directory>

<Proxy *>
    Order deny,allow
    Allow from all
    AuthType Basic
    AuthName "Restricted Area"
    AuthUserFile /opt/kibana/config/htpasswd.users
    Require valid-user
</Proxy>

Note: You need to get the right version of Kibana to match your version of Elastic, I am currently on Elastic 2.4 with Kibana 4.6 


A newer simpler way is to use: http://wikisuite.org/How-to-install-Kibana-on-ClearOS


1.11. SaaS options




alias

doc.tiki.org


Bootstrap

AdminGuide

UserGuide

Keywords

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