Problem:

Find directories / files (incl. 1,2G etc):

du -sh /*/*/* 2>&1 | grep -E "[0-9]{1,}(,[0-9])?G\s+"

Simpler version with more than 10G:

Problem:

  Command ws was not found. Drush was unable to query the database. 
  As a result, many commands are unavailable. 
  Re-run your command with --debug to see relevant log messages.  

Solution?

Problem:

Offenbar ist HunspellStemFilterFactory  nicht mit Apache Solr 9.9 kompatibel.  

Was ist die beste Alternative, damit Apache Solr 9.9 Content in deutscher Sprache optimal indexieren, bearbeiten und analysieren kann?

• solr.SnowballPorterFilterFactory language="German"
• solr.GermanStemFilterFactory
• solr.GermanLightStemFilterFactory
• solr.GermanMinimalStemFilterFactory
• ... ?

Solution?

Problem:

Solution:

 # java --version && /opt/solr/bin/solr --version

Output:

Problem:

Problem:

#pecl channel-update pecl.php.net
PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /usr/share/php/PEAR/Config.php on line 2095

Solution?

Problem:

Uninstall / remove Apache Solr 9.x completely

Solution:

service solr stop  && rm -rfv /var/solr && rm -v /etc/init.d/solr  && rm -rfv /opt/solr  && rm -rfv /opt/solr-9* && rm -rfv /etc/default/solr.in.sh

additionally (if needed): 

Problem:

...
Service solr installed.
Customize Solr startup configuration in /etc/default/solr.in.sh
Job for solr.service failed because the control process exited with error code.
See "systemctl status solr.service" and "journalctl -xeu solr.service" for details.