On Dec 19, 2007 9:48 AM, Brian Whitman <[EMAIL PROTECTED]> wrote: > > On Dec 19, 2007, at 9:34 AM, Yonik Seeley wrote: > > > On Dec 19, 2007 9:23 AM, Brian Whitman <[EMAIL PROTECTED]> > > wrote: > >> It's pretty easy to parse access logs or solr query logs and find the > > offenders (I don't have any parsing code at my fingertips though...) > > > > Do these periods of slowness tend to happen right after a commit? > > Do the slow queries have anything in common? > > All queries become slow, so looking at the access logs don't help us > much.
You could try thread dumps (kill -3, or use the solr admin page) The latest devel versions of solr also break out time by component if you give debugQuery=true > After some amount of time (variable, but measured in days) Solr > just becomes slow for us, every query takes 20-30s. This is strange (if a reboot fixes it). Anything odd in the logs? overlapping searchers? search for "WARNING" in the logs. Also check to make sure it's not a GC... that could cause everything to start slowing down when you start running out of memory. -Yonik
