![q=*:*&fq=country:AN&fq=duration:[1 TO *]&
fq=date:[NOW TO 2013-07-01T00:00:00Z]
Filter queries...](https://image.slidesharecdn.com/solrlessonslearned-130612040302-phpapp01/85/Apache-Solr-lessons-learned-36-320.jpg)
![q=*:*&fq=country:AN&fq=duration:[1 TO *]&
fq=date:[NOW TO 2013-07-01T00:00:00Z]
Match all documents
q=*:*](https://image.slidesharecdn.com/solrlessonslearned-130612040302-phpapp01/85/Apache-Solr-lessons-learned-37-320.jpg)
![q=*:*&fq=country:AN&fq=duration:[1 TO *]&
fq=date:[NOW TO 2013-07-01T00:00:00Z]
Filter by field value
fq=country:AN](https://image.slidesharecdn.com/solrlessonslearned-130612040302-phpapp01/85/Apache-Solr-lessons-learned-38-320.jpg)
![q=*:*&fq=country:AN&fq=duration:[1 TO *]&
fq=date:[NOW TO 2013-07-01T00:00:00Z]
Range query with wildcard
fq=duration:[1 TO *]
range query using DateMath syntax
fq=date:[NOW TO 2013-07-01T00:00:00Z]](https://image.slidesharecdn.com/solrlessonslearned-130612040302-phpapp01/85/Apache-Solr-lessons-learned-39-320.jpg)
Uploaded byJeroen Rosenberg
Apache Solr lessons learned
This document provides examples and explanations of different Solr query types and configurations including: - Faceting queries to return counts of field values without results - Filter queries to reduce the result set - Range queries using date math syntax - Distributed searching across multiple cores/servers - Grouping queries to organize results by field values - Explanations of caching, field types, indexing and other Solr concepts.
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Apache Solr lessons learned
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- 3. Lucene xml/json api +field types + caching + faceting + grouping +
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- 7. Efficient when manydocs share the same value
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- 9. <field name="id" type="string"indexed="true" stored="true" required=" true" multiValued="false"/> <field name="name" type="string" indexed="false" stored="true" required="true" multiValued="false"/> Field type definition
- 10. <field name="id" type="string"indexed="true" stored="true" required=" true" multiValued="false"/> <field name="name" type="string" indexed="false" stored="true" required="true" multiValued="false"/> Field type definition
- 11. ... <fieldtype name="pdate" class="solr.DateField"sortMissingLast="true"/> ... <field name="date" type="pdate" indexed="false" stored="true"/> <field name="range_date" type="pdate" indexed="true" stored="false"/> <copyField source="date" dest="range_date"/> Field type definition
- 12. ... <fieldtype name="pdate" class="solr.DateField"sortMissingLast="true"/> ... <field name="date" type="pdate" indexed="false" stored="true"/> <field name="range_date" type="pdate" indexed="true" stored="false"/> <copyField source="date" dest="range_date"/> Field type definition
- 13. <dynamicField name="*_s" type="string"indexed="true" stored="true"/> Schemaless
- 14.
- 15. Tune the mergefactor
- 16. Max. # ofsegments Faster search, but slower indexing Faster indexing, but slower search
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- 21. foo foo foo core1core2 core3 Index distributor replication
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- 24. <requestHandler name="distributedSearch" class="solr.SearchHandler" default="false"> <lstname="defaults"> <int name="rows">10</int> <str name="fl">*</str> <bool name="partialResults">true</bool> <str name="shards">solr2:7070/solr/foo,solr3:7070/solr/foo</str> </lst> </requestHandler> Distributed search config
- 25. <requestHandler name="distributedSearch" class="solr.SearchHandler" default="false"> <lstname="defaults"> <int name="rows">10</int> <str name="fl">*</str> <bool name="partialResults">true</bool> <str name="shards">solr2:7070/solr/foo,solr3:7070/solr/foo</str> </lst> </requestHandler> Distributed search config
- 26. <requestHandler name="distributedSearch" class="solr.SearchHandler"default false"> <lst name="defaults"> <int name="rows">10</int> <str name="fl">*</str> <bool name="partialResults">true</bool> <str name="shards">solr2:7070/solr/foo,solr3:7070/solr/foo</str> </lst> </requestHandler> Distributed search config
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- 30. Document Field value Query result FilterDocids of results per filter query
- 31. Query result Document Filter Field value Fieldnames (facets) mapped to mapping of doc ids to terms
- 32. Field value Filter Document Query result Orderedset of doc ids of top N results
- 33. Field value Filter Query result Document Storedfields for each doc
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- 36. q=*:*&fq=country:AN&fq=duration:[1 TO *]& fq=date:[NOWTO 2013-07-01T00:00:00Z] Filter queries...
- 37. q=*:*&fq=country:AN&fq=duration:[1 TO *]& fq=date:[NOWTO 2013-07-01T00:00:00Z] Match all documents q=*:*
- 38. q=*:*&fq=country:AN&fq=duration:[1 TO *]& fq=date:[NOWTO 2013-07-01T00:00:00Z] Filter by field value fq=country:AN
- 39. q=*:*&fq=country:AN&fq=duration:[1 TO *]& fq=date:[NOWTO 2013-07-01T00:00:00Z] Range query with wildcard fq=duration:[1 TO *] range query using DateMath syntax fq=date:[NOW TO 2013-07-01T00:00:00Z]
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- 45. rows=0&facet=true&facet.field=departureairport& facet.field=touroperator&facet.limit=-1& facet.mincount=1&f.touroperator.facet.limit=2 facet.field=departureairport Specify a fieldname ...and another one facet.field=touroperator
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- 47. rows=0&facet=true&facet.field=departureairport& facet.field=touroperator&facet.limit=-1& facet.mincount=1&f.touroperator.facet.limit=2 Unlimited field values(globally) facet.limit=-1 Basically, always a good idea
- 48. rows=0&facet=true&facet.field=departureairport& facet.field=touroperator&facet.limit=-1& facet.mincount=1&f.touroperator.facet.limit=2 Override global limitfor specific field names f.touroperator.facet.limit=2
- 49. rows=0&facet=true&facet.field=departureairport& facet.field=touroperator&facet.limit=-1& facet.mincount=1&f.touroperator.facet.limit=2 At least 1document per field value facet.mincount=1
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- 51. q=*:*&fq={!tag=country}country:AN&facet=true& facet.field={!ex=country}country&facet.limit=-1& facet.mincount=1 fq={!tag=country}country:AN Tag a filterquery... ...and exclude it for a field value facet.field={!ex=country}country
- 52. FACET ALL THE THINGS! FACET ALLTHE THINGS!
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- 56. group=true&group.field=accoid& group.sort=price asc&sort=popularity asc& group.facets=UNGROUPED Specifythe field name group.field=accoid
- 57. group=true&group.field=accoid& group.sort=price asc&sort=popularity asc& group.facets=UNGROUPED Determinesgroup head group.sort=price asc Determine order of document results sort=popularity asc
- 58. group=true&group.field=accoid& group.sort=price asc&sort=popularity asc& group.facets=UNGROUPED Determinesgroup head group.sort=price asc Determine order of document results sort=popularity asc Only group heads are returned!
- 59. ONE DOES NOT SIMPLY EXPLAINSOLR QUERIES ONE DOES NOT SIMPLY EXPLAIN SOLR QUERIES
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