SOLR

Um Apache Solr zu installieren bzw. zu aktualisieren (Update/Upgrade) :

Um die Sicherheitslücke für Apache Solr 8.x zu schließen:

1. Umgebungsvariable setzen

export LOG4J_FORMAT_MSG_NO_LOOKUPS=true

2. Dateien ersetzen

Alte Dateien (in /opt/solr/server/lib/ext)

Alles außer Localhost ignorieren

Alle Verbindungen, die nicht aus dem IP 127.0.0.1 kommen, werden ignoriert (Reihenfolge ist wichtig).

service solr status

https://lucene.apache.org/solr/guide/8_5/taking-solr-to-production.html

*** [WARN] *** Your open file limit is currently 1024. It should be set to 65000 to avoid operational disruption.

If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false in your profile or solr.in.sh

Error: Solr requires java, please install or set JAVA_HOME properly

Was ist die Lösung?

Solarium Error:

Solarium 5.0.2 is too old and has known issues. In order to get composer to upgrade solarium to a recent version a core patch or a workaround is required. Have a look at this Core issue and this Search API Solr issue.

Error: Apache Solr (Solr-Server Version: 8.5.2) & Drupal 8.9 (search_api_solr: 3.9)

Your config-set contains manually added customizations. Be aware that these will be lost when the config-set needs to be regenerated.

Hier, wie ich solr HTTP Basic Auth eingerichtet habe.

Problem:

Solarium 5.0.2 is too old and has known issues. In order to get composer to upgrade solarium to a recent version a core patch or a workaround is required. Have a look at this Core issue and this Search API Solr issue.

Lösung:

composer require symfony/event-dispatcher:"4.3.4 as 3.4.99" && composer update