Difference between revisions of "Search"

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(interim draft on search extension)
(extracted CirrusSearch and Elasticsearch content into it's own page)
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If you're a sysop for a MediaWiki site, you probably want to install the [[mw:Extension:Replace_Text]] so that you can search and replace strings in your content.
 
If you're a sysop for a MediaWiki site, you probably want to install the [[mw:Extension:Replace_Text]] so that you can search and replace strings in your content.
 
==== Cirrus Search ====
 
To really get good search experience with MediaWiki, you should install the [[mw:Extension:CirrusSearch]].  To do so, first install the [[ElasticSearch]] system (you can use [https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html the repositories for that]).  ElasticSearch is a Java application, so you need Java installed as well.
 
 
<source lang="bash">
 
# is the curl extension to PHP installed?
 
php -i |grep -C2 curl
 
# no curl?
 
sudo apt-get install php5-curl
 
pushd extensions
 
java -version
 
# no java
 
sudo apt-get install default-jre
 
# need the jdk
 
sudo apt-get install default-jdk
 
# add JAVA_HOME to /etc/environment
 
sudo update-alternatives --config java
 
echo 'JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java' |sudo tee -a /etc/environment
 
source /etc/environment
 
echo $JAVA_HOME
 
wget -qO - https://packages.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
 
echo "deb http://packages.elastic.co/elasticsearch/2.x/debian stable main" | sudo tee -a /etc/apt/sources.list.d/elasticsearch-2.x.list
 
sudo apt-get update && sudo apt-get install elasticsearch
 
echo PATH=$PATH:/usr/share/elasticsearch/bin/ | sudo tee -a /etc/environment
 
source /etc/environment
 
which elasticsearch
 
sudo service elasticsearch start
 
# check with curl (see below)
 
# using SysV init
 
sudo update-rc.d elasticsearch defaults 95 10
 
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/CirrusSearch.git
 
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/Elastica.git
 
cd Elastica
 
composer install
 
# load Special:Version to check
 
</source>
 
 
Checking if elasticsearch is running
 
<source lang="bash">
 
curl -X GET http://localhost:9200/
 
</source>
 
<source lang="javascript">
 
{
 
  "name" : "Carmella Unuscione",
 
  "cluster_name" : "elasticsearch",
 
  "version" : {
 
    "number" : "2.1.1",
 
    "build_hash" : "40e2c53a6b6c2972b3d13846e450e66f4375bd71",
 
    "build_timestamp" : "2015-12-15T13:05:55Z",
 
    "build_snapshot" : false,
 
    "lucene_version" : "5.3.1"
 
  },
 
  "tagline" : "You Know, for Search"
 
}
 
</source>
 
 
  
 
== General ==
 
== General ==

Revision as of 11:41, 30 January 2016