Side by Side with Elasticsearch and Solr
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This document summarizes a presentation comparing Solr and Elasticsearch. It outlines the main topics covered, including documents, queries, mapping, indexing, aggregations, percolations, scaling, searches, and tools. Examples of specific features like bool queries, facets, nesting aggregations, and backups are demonstrated for both Solr and Elasticsearch. The presentation concludes by noting most projects work well with either system and to choose based on your use case.
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Side by Side with Elasticsearch and Solr
- 1. Side by Side with Solr and Elasticsearch Radu GheorgheRafał Kuć
- 3. AgendaOverview documents queries mapping index&store aggregations percolations scale out searches tools ecosystem documents schema index&store facets scale out searches tools ecosystem backupreplicate
- 4. { "id": "4", "url": "https://www.youtube.com/watch?v=IutoHcJT61k", "title": "#bbuzz: Rafał Kuć: Battle of the Giants: Solr vs ElasticSearch, Round 2", "uploaded_by": "newthinking communications", "upload_date": "2013-06-19", "views": 380, "likes": 1, "tags": ["elasticsearch", "solr", "lucene", "comparison"] } Let’s Index Videos Examples available at: https://github.com/sematext/berlin-buzzwords-samples/
- 5. Demo time: Start your engines! hkcarworld.com
- 6. MappingSchema schema.xml+... -> ZooKeeper <schema name=" BerlinBuzzwords2014" version="1.5"> <fields> <field name="id" type="string" indexed="true" stored="true" required="true" multiValued="false" /> ... <field name="tags" type="string" indexed="true" stored="true" multiValued="true"/> </fields> ... </schema> PUT -> /bbuzz/videos/_mapping { "videos": { "_id": { "path": "id" }, "properties": { ... "tags": { "type": "string", "index": "not_analyzed" }, ... } } }
- 7. URI Request“q” Parameter GET -> /solr/bbuzz/select params -> q=elasticsearch fl=*,score ... <result name="response" numFound="7" start="0"> <doc> <float name="score">0. 44896343</float> <str name="id">2</str> <str name="url"> /watch?v=6QX5hXf_e7c</str> <str name="title">Introduction to Elasticsearch by Radu</str> ... </doc> ... GET -> /bbuzz/videos/_search params -> q=elasticsearch ... "hits" : [ { "_index" : "bbuzz", "_type" : "videos", "_id" : "2", "_score" : 0.26516503, "_source" : { "url": "/watch?v=6QX5hXf_e7c", "title": "Introduction to Elasticsearch by Radu", ...
- 8. Bool QueryBool Query GET -> /solr/bbuzz/select q=title:elasticsearch OR tags:logs q=title:elasticsearch tags:logs q.op=OR GET -> /bbuzz/videos/_search { "query": { "bool": { "should": [ { "match": { "title": "elasticsearch" } }, { "term": { "tags": "logs" ...
- 9. PercolatorGrouping GET -> /solr/bbuzz/select q=elasticsearch group=true group.field=uploaded_by PUT -> /bbuzz/.percolator/1 { "query" : { "term" : { "tags" : "elasticsearch" } } } GET -> /bbuzz/videos/_percolate { "doc": { "title": "Scaling Massive ES Clusters", "tags": [ "elasticsearch", "scaling"] } }
- 10. HierarchiesHierarchies names: -> first: Rafał, last: Kuć -> first: Radu, last: Gheorghe nested (block join) parent-child (query time join) "names": [ { "first": "Rafał", "last": "Kuć" }, { "first": "Radu", "last": "Gheorghe" }, ] nested (block join) parent-child Rafał Kuć Radu Gheorghe 2 names ⇐ Rafał Kuć Radu Gheorghe names Rafał Kuć Radu Gheorghe 2 names ⇐ Rafał Kuć Radu Gheorghe names
- 11. AggregationsFacets facet=true facet.field=tags facet=true facet.query=uploaded_by: LuceneSolrRevolution facet.query=uploaded_by:" newthinking communications" "aggregations" : { "tags" : { "terms" : { "field" : "tags" } } } "aggregations": { "uploader_count": { "cardinality": { "field": "uploaded_by" } } }
- 12. Nesting AggsPivot Facets facet=true facet.pivot=tags,views "aggregations" : { "tags" : { "terms" : { "field" : "tags" }, "aggregations": { "dates": { "date_histogram": { "field": "upload_date", "interval": "month", "format" : "yyyy-MM" } } } } }
- 13. Demo time: Graph all the things! http://f1.thejournal.ie/media/2013/05/meatloaf-2.jpg
- 14. Stats APIsStats JMX / Solr admin / clusterstate GET -> /_stats "index_total" : 15118403, "index_time" : "4.2h", ... "query_total" : 41092, "query_time" : "57.2m", GET -> /_cluster/stats "heap_used_in_bytes" : 83960392, ...
- 15. Backup PUT -> /_snapshot/bbuzz { "type": "fs", "settings": { "location": "/mnt/bbuzz_backup" } }' PUT -> /_snapshot/bbuzz/1 { "indices": "bbuzz" }' POST -> /_snapshot/bbuzz/1/_restore"
- 16. Demo time: Scaling out
- 17. Apache Software Foundation Contributors Code Mailing list Elasticsearch Contributors Code Mailing list
- 18. things to comeNew juicy facet by function https://issues.apache. org/jira/browse/SOLR-1581 analytics component https://issues.apache. org/jira/browse/SOLR-5302 Solr as standalone application 5.0 - no general issue yet top_hits aggregation https://github. com/elasticsearch/elasticsearch/pull/61 24 minumum_should_match on has_child https://github. com/elasticsearch/elasticsearch/issues/ 6019 filters aggregation https://github. com/elasticsearch/elasticsearch/issues/ 6118
- 19. most projects work well with either many small differences, few show-stoppers choose the best. for your use-case.
- 20. Want to work with both? We’re hiring! Worldwide http://www.staff.amu.edu.pl/~zbzw/glob/glob.gif
- 21. Thank you! Radu Gheorghe @radu0gheorghe Rafał Kuć @kucrafal Examples available at: https://github.com/sematext/berlin-buzzwords-samples/ @sematext