Hi koha developers, Quick introduction: As a system admin, I am part of the team that rolls out the koha software at KIT Karlsruhe. Currently I have an issue with the koha-elasticsearch script that is used to index the biblio and authorities data in elasticsearch. We have different test and development servers and on some of the severs I get extensive diagnostic output when running the command while on others I only get the errors and warnings. In every run /usr/sbin/koha-elasticsearch (which subsequently calls /usr/share/koha/bin/search_tools/rebuild_elasticsearch.pl) is definitely invoked without any "verbose" flag Unfortunately there is no output on stdout, but everything gets written to stderr. As we have 1.3M biblios and 600k authorities I would get tens of gigabytes of log file, which I would have to check. My question: is there somewhere a setting in koha that globally controls the debug level? Or how can the different behaviours be explained? All installations run koha Release 23.05.X on Ubuntu 22.04.3 LTS Any thoughts are welcome. Many thanks in advance Udo