Well, It Depends (tm). Certainly 2 and 3 are _not_ memory intensive
4 depends on the number of terms in the fields. But I suspect your real problem has nothing to do with memory and is <1>. Try q=*:* rather than q=*. In case your e-mail tries to make things bold, that’s q=asterisk-colon-asterisk, not q=asterisk Best, Erick > On Oct 13, 2019, at 12:59 AM, harjags <hareesh.jagannat...@bestbuy.com> wrote: > > 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