We've also experienced the exact same issue after upgrading from 9.6.1 to 9.7.0. We had tried setting -Dorg.apache.lucene.store.MMapDirectory.enableMemorySegments=false after reading a post from David Smiley and following that eventually through to some project in GitHub, but that did nothing.
We also noticed the number of InterruptsPerSecond grew tremendously with the CPU increase (and response times), perhaps that provides some sort of clue as to what the cause of the issue is. We're running JDK 21 on AWS Linux 2023. We've been eagerly awaiting 9.7.0 for some of the vector search improvements, would really hate to fall back to 9.6.1. On Fri, Nov 29, 2024 at 9:43 AM Patrik Peng <patrik.p...@hostpoint.ch.invalid> wrote: > 9.6.1 to 9.7.0 > >