Hi all, We have a site with around 600,000 authority records and have enabled elasticsearch. Reindexing and searching has worked easily for biblios (there are just over 10,000 biblios) but fails for authorities. $ sudo koha-elasticsearch --rebuild -d -a -v <instance> [19024] Checking state of authorities index [19024] Dropping and recreating authorities index [19024] Indexing authorities And then it just hangs there for ages until the server runs out of memory and dies. We're running ES 6.x on Koha 20.05.x. I tried running the script directly and specifying an authid and that worked as expected. $ perl /usr/share/koha/bin/search_tools/rebuild_elasticsearch.pl -a -d -v -ai 2135575 [17684] Checking state of authorities index [17684] Dropping and recreating authorities index [17684] Indexing authorities [17684] Committing final records... [17684] Total 1 records indexed It feels like this is happening because we have too many authority records. Is there a way to fix this? Has anyone come across this before? Thanks! -- *Aleisha Amohia*(she/her)