Thanks for the fast reply. I think we¹re going to focus on using doc values.
You also said "facet on fewer fields² - how does one do that? Thanks! -Frank Frank Kelly Principal Software Engineer HERE 5 Wayside Rd, Burlington, MA 01803, USA 42° 29' 7" N 71° 11' 32" W <http://360.here.com/> <https://www.twitter.com/here> <https://www.facebook.com/here> <https://www.linkedin.com/company/heremaps> <https://www.instagram.com/here/> On 2/9/17, 8:25 AM, "Markus Jelsma" <markus.jel...@openindex.io> wrote: >Hello - FieldCache is your problem. This can be solved in many ways but >only one really beneficial: decrease number of documents, increase heap, >facet on fewer fields, don't do function query on many fields. Or, of >course, reindex with doc values. And you get a bonus, you can also >drastically reduce your heap size. > >----Original message----- >> From:Kelly, Frank <frank.ke...@here.com> >> Sent: Thursday 9th February 2017 14:20 >> To: solr-user@lucene.apache.org >> Subject: Solr Heap Dump: Any suggestions on what to look for? >> >> Got a heap dump on an Out of Memory error. >> Analyzing the dump now in Visual VM >> > >> Seeing a lot of byte[] arrays (77% of our 8GB Heap) in >> TreeMap$Entry FieldCacheImpl$SortedDocValues >> We¹re considering switch over to DocValues but would rather be >>definitive about the root cause before we experiment with DocValues and >>require a reindex of our 200M document index >> In each of our 4 data centers. >> > >> Any suggestions on what I should look for in this heap dump to get a >>definitive root cause? >> > >> Cheers! >> > >> -Frank >> > >> > >> Frank Kelly >> Principal Software Engineer >> HERE >> 5 Wayside Rd, Burlington, MA 01803, USA >> 42° 29' 7" N 71° 11' 32" W >> >><https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2F360.he >>re.com%2F&data=01%7C01%7C%7Ca5c3d440116b4ff1417508d450ef1798%7C6d4034cd72 >>254f72b85391feaea64919%7C1&sdata=bLudPbCB2aeqAFdvvZ%2BS5EYg37m%2BKPSTXYNY >>Vz%2B1Eug%3D&reserved=0> >> >><https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.t >>witter.com%2Fhere&data=01%7C01%7C%7Ca5c3d440116b4ff1417508d450ef1798%7C6d >>4034cd72254f72b85391feaea64919%7C1&sdata=qxDdM94Mnlw02QHD8oFyzOHO3pNvyHeb >>HvSvBz767hE%3D&reserved=0> >> >><https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.f >>acebook.com%2Fhere&data=01%7C01%7C%7Ca5c3d440116b4ff1417508d450ef1798%7C6 >>d4034cd72254f72b85391feaea64919%7C1&sdata=uLkky5W5MPUXddFkr5LqDrzn0MRt0vB >>kvnxuZhlxpqo%3D&reserved=0> >> >><https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.l >>inkedin.com%2Fcompany%2Fheremaps&data=01%7C01%7C%7Ca5c3d440116b4ff1417508 >>d450ef1798%7C6d4034cd72254f72b85391feaea64919%7C1&sdata=fKBiSO7A1YPG4uRzy >>WPqyYDpH1B9l%2FyUqCG2TzeLWgM%3D&reserved=0> >> >><https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.i >>nstagram.com%2Fhere%2F&data=01%7C01%7C%7Ca5c3d440116b4ff1417508d450ef1798 >>%7C6d4034cd72254f72b85391feaea64919%7C1&sdata=4T41MNcQpb1jH7qzJrySt79MlVj >>YwyYLG2lZXVioEkw%3D&reserved=0>
