Thanks David for the tip. We'll test with/without the flag and report back our findings.
-Kevin From: users@solr.apache.org At: 08/21/24 13:24:10 UTC-4:00To: d...@solr.apache.org, users@solr.apache.org Subject: FYI for those trying Java 21 For those trying Java 21 with Solr, if you find the performance to be bad then try setting -Dorg.apache.lucene.store.MMapDirectory.enableMemorySegments=false This made a huge difference for me on our Solr nodes at work. I filed the following ticket to Solr that ought to avoid the JDK performance regression if done: https://issues.apache.org/jira/browse/SOLR-17375 ~ David Smiley Apache Lucene/Solr Search Developer http://www.linkedin.com/in/davidwsmiley