John Stric <jstg...@gmail.com> wrote: > The speed of particular query has gone from about 42 msec to 66 msec > without any changes.
- Your JVM has allocated a bit more RAM, leaving less for disk cache. - Your index has grown. - The amount of concurrent requests has increased, pushing objects from Eden space to main heap, causing heavier garbage collection. - A backup job is running. - Another program has started, eating free mem from disk cache. - Swap activity has increased. The list goes on. Java performance is a fickle beast and Solr performance doubly so. > How do I go about troubleshooting what may have happened? Try to restore to a previous state and see if that changes response time: Shut down all running programs on the machine, start Solr again, warm it and test? - Toke Eskildsen
