Setup Solr 9.5 on Ubuntu

Solr installation comands

sudo add-apt-repository ppa:linuxuprising/java

sudo apt-get update

apt-get install openjdk-11-jdk -y

wget https://dlcdn.apache.org/solr/solr/9.5.0/solr-9.5.0.tgz

tar xzf solr-9.5.0.tgz solr-9.5.0/bin/install_solr_service.sh --strip-components=2

sudo bash ./install_solr_service.sh solr-9.5.0.tgz

http://127.0.0.1:8983/solr/#/

Create New core to host data inside it

sudo su - solr -c "/opt/solr/bin/solr create -c core_catalog_metadata_v2 -n data_driven_schema_configs"

Define Core Schema

Add your Fields schema inside managed-schema file found in path

/var/solr/data/core_catalog_metadata_v2/conf

Sample of fields that we can add

  <field name="status_id" type="pint" docValues="true" indexed="true" stored="false" />

  <field name="description" type="text_general" multiValued="false" indexed="false" stored="true"/>

  <field name="Comments" type="text_ar" indexed="true" stored="false" omitNorms="true" />

  

Define new Datatype that support Arabic

  <field name="FullName" type="text_ar_sort" multiValued="false" docValues="true" indexed="true" stored="true"/>

  

  <fieldType name="text_ar_sort" class="solr.SortableTextField" sortMissingLast="true" docValues="true"  positionIncrementGap="100" multiValued="false">

    <analyzer type="index">

      <tokenizer class="solr.StandardTokenizerFactory"/>

      <filter class="solr.StopFilterFactory" words="lang/stopwords_ar.txt" ignoreCase="true"/>

  <filter class="solr.ArabicNormalizationFilterFactory"/>

      <filter class="solr.ArabicStemFilterFactory"/>

      <filter class="solr.LowerCaseFilterFactory"/>

    </analyzer>

    <analyzer type="query">

      <tokenizer class="solr.StandardTokenizerFactory"/>

      <filter class="solr.StopFilterFactory" words="lang/stopwords_ar.txt" ignoreCase="true"/>

  <filter class="solr.ArabicNormalizationFilterFactory"/>

      <filter class="solr.ArabicStemFilterFactory"/>

      <filter class="solr.SynonymGraphFilterFactory" expand="true" ignoreCase="true" synonyms="synonyms.txt"/>

      <filter class="solr.LowerCaseFilterFactory"/>

    </analyzer>

  </fieldType>

Solr Security

by default solr will listen to local calls only, to allow access:

nano /etc/default/solr.in.sh

listen to 0.0.0.0

Restrict network access to specific hosts, by activate Ubuntu firewall

sudo ufw enable

sudo ufw default deny incoming

sudo ufw allow OpenSSH

reboot

Add white list IPs that can access Solr

for ip in 193.199.247.17 193.42.243.96 193.35.34.22 193.59.15.7 193.89.167.125 193.59.21.206 193.189.32.185; 

do   

sudo ufw allow proto tcp from $ip to any port 8983 comment "Allow access to port 8983 from $ip"; 

done

View Firewall Status

sudo ufw status verbose

Allow new IP to access Solr

sudo ufw allow proto tcp from 193.35.116.116 to any port 8983 comment "Allow access to port 8983 from 193.35.116.116"