We’ve been running Solr 4.10.4 in prod for a couple of years. There aren’t any obvious memory leaks in it. It stays up for months.
Objects ejected from the cache will almost always be tenured, so that tends to cause full GCs. If there are very few repeats in your query load, you’ll see a lot of cache ejections. This can also happen if you have an HTTP cache in front of the Solr hosts. What are the hit rates on the Solr caches? Also, are you using “NOW” in your queries? That will cause a very low hit rate on the query result cache. We can’t help without a lot more information, like your search architecture, the search collections, the query load, cache sizes, etc. Finally, this is not a question for the dev list. This belongs on solr-user, so I’m dropping the reply to the dev list. wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Dec 2, 2016, at 11:01 AM, S G <sg.online.em...@gmail.com> wrote: > > Hi, > > This post shows some stats on Solr which indicate that there might be a > memory leak in there. > > http://stackoverflow.com/questions/40939166/is-this-a-memory-leak-in-solr > <http://stackoverflow.com/questions/40939166/is-this-a-memory-leak-in-solr> > > Can someone please help to debug this? > It might be a very good step in making Solr stable if we can fix this. > > Thanks > SG
