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eZ find & Solr multicore how-to
eZ find 2.2 introduces support for solr multicore feature. This finally allows
for better language specific search & analysis.
Starting solr multicore
A default configuration of solr multicore is shipped with ezfind.
To start it, use the following command line instead of the default one::
$java/: java -Dsolr.solr.home=solr.multicore -jar start.jar
Configuring solr for multicore
You will find in extension/ezfind/java a folder named solr.multicore. This is
a distinct solr home that already provides multicore features.
Located in the solr.multicore folder mentionned above, this file is required to
enable multicore.
The <cores> element is used to configure the administration URL for the cores,
as well as the list of available cores. Each 'core' sub-element configures a
new core. The 'name' attribute determines what URL element is used to access
this core, while the instanceDir attribute determines the subfolder of
solr.multicore where this core configuration can be found.
Creating a new core
Note that even though only language specific cores are used by eZ find at the
moment, cores can be used for much more than that.
1) you need to copy one of the existing ones, for example
extension/ezfind/java/solr.multicore/eng-GB to a new name, the easiest being
the target locale name::
$ezroot: cd extension/ezfind/java/solr.multicore
$solr.multicore: cp -rp eng-GB nor-NO
2) edit solr.multicore/solr.xml and add the newly created core here::
<core name="eng-GB" instanceDir="eng-GB" />
<core name="nor-NO" instanceDir="nor-NO" />
3) now, you must configure the core so that it actually knows what language
it will handle, and will perform language specific analysis. To do so, edit
the conf/schema.xml file located in this particular core::
In this file, you will find multiple occurences of 'English' (if you've used
eng-GB as the source). All of these will be attributes of a 'filter' XML element.
Edit these, and replace 'English' with your language. The list of supported
languages can be found on solr's wiki:
For nor-NO, you would use 'Norwegian'.
To access the solr backoffice, you must use the URI specified in solr.xml::
This will give you an overview of the solr configuration, as well as a direct
access to each core's admin.
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