Hi, This could be the JVM doing constant GCing because there is not much room in the heap for new objects (jstat will help you check this). It could also be that you have a deadlock - I just saw a similar case with one of our customers' Solr - out of N CPU cores, one was at 100% and jstack showed a deadlock (in HttpClient used by SolrJ).
Otis ---- Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch Lucene ecosystem search :: http://search-lucene.com/ ----- Original Message ---- > From: Erez Zarum <e...@icinga.org.il> > To: solr-user@lucene.apache.org > Sent: Wed, February 9, 2011 4:31:53 AM > Subject: high cpu usage > > Hello, > We have been running read only solr instances for a few months now, > yesterday >i have noticed an high cpu usage coming from the JVM, it simply use 100% of >the >CPU for no reason. > Nothing was changed, we are using Jetty as a Servlet container for solr. > Where can i start looking what cause it? it has been using 100% CPU for > almost >24 hours now. > > Thanks, > Erez. >
