We are upgrading to solr 7.6 from 6.1 Our query has below pattern predominantly
1.q is * as we filter based on a department of products always 2. 100+ bq's to boost certain document 3. Collapsing using a non DocValue field 4.Many Facet Fields and Many Facet queries Which of the above is the most memory consuming operations? Below errors are very common in 7.6 and we have solr nodes failing with tanking memory. The request took too long to iterate over terms. Timeout: timeoutAt: 162874656583645 (System.nanoTime(): 162874701942020), TermsEnum=org.apache.lucene.codecs.blocktree.SegmentTermsEnum@74507f4a or #*BitSetDocTopFilter*]; The request took too long to iterate over terms. Timeout: timeoutAt: 33288640223586 (System.nanoTime(): 33288700895778), TermsEnum=org.apache.lucene.codecs.blocktree.SegmentTermsEnum@5e458644 or #SortedIntDocSetTopFilter]; The request took too long to iterate over terms. Timeout: timeoutAt: 552497919389297 (System.nanoTime(): 552508251053558), TermsEnum=org.apache.lucene.codecs.blocktree.SegmentTermsEnum@60b7186e OR -- Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html