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Solr für Volltext-Suche oder gleich als Datenba...
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Frank Neff
October 30, 2014
Programming
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Solr für Volltext-Suche oder gleich als Datenbank Engine
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Transcript
Solr für Volltext-Suche oder gleich als Datenbank Engine Frank Neff
Symfony Live Berlin 2014 #sfLiveSolr
Über mich Frank Neff ▪ Software Engineer @ YMC AG
▪ Lebt in Zurich, Schweiz ▪ Codet PHP und Java ▪ Student ▪ Open Source Enthusiast ▪ Multicopter Drohne Pilot ▪ Hobby-Fotograf ▪ frankneff.ch ▪ ymc.ch
None
Open Source Switzerland Agile Since 2001 Conferences International Software solutions
Best of swiss web Über YMC
Mehr Daten...
...langsame Suche
“If all you have is a hammer, everything looks like
a nail” - Abraham Maslow
None
• Such-Server (Reverse Index) • Basiert auf Apache Lucene •
Standalone oder Cluster • Skalierbar • Unterstützt diverse Formate • Stemmer, Stopwords, Facettierung • Gewichtung von Feldern
“Solr wird mit mehr Daten nicht markant langsamer...”
Funktionsweise Solr Index
Textfeld: “This example shows how SOLR's tokenizing/indexing works…” Such-String: “How-To
Solr tokenization” Beispiel Indexierung
None
Stop Filter Lower Case Filter English Possessive Filter Porter Stem
Filter
Gespeicherter Index Token Index biz 2 example 1 hard 2,3
how 1,3 index 1,3 show 1,2 solr 1,3 work 1,2,3 Index Document 1 This example shows how SOLR's tokenizing/indexing works... 2 Show-biz is hard work! 3 How hard is the work with a solr index? *stark vereinfacht
Query Matching
▪ ~500’000 Wörter (Duden) ▪ = max. Index-Tokens ▪ Wachstum
des Indexes verringert sich / bleibt konstant ▪ Suche wird nicht langsamer Anzahl Artikel Index Grösse Index Grösse
in PHP Integration
▪ Grundlegende C-Extension für Indexierung und Abfrage ▪ http://pecl.php.net/package/solr ▪
http://php.net/manual/de/book.solr.php pecl/php_solr
▪ Feature-Complete Solr Library ◦ Geschrieben in PHP ◦ Facet
support ◦ Query building API ◦ Plugin system ◦ DisMax support ▪ http://www.solarium-project.org/ Solarium
Solarium Beispiel
Symfony 2 Konzepte in
▪ Volltextsuche ▪ MySQL entlasten ▪ Document Store ▪ Polyglot-Persistence?
Einsatzmöglichkeiten in Symfony 2
Volltextsuche
Volltextsuche MySQL Solr App index persist /search query /create ...
/article/42 result query result
▪ Solr NRT-Search verwenden ▪ Indexierung “onPostPersist” ▪ Komplexe Queries
▪ Keine Datenbank-Last Volltextsuche
Fixture
Controller
Repository
MySQL entlasten
MySQL entlasten Copying to tmp table… ☠ ☠ ☠
MySQL entlasten MySQL Solr App index persist related articles query
/create ... /article/42 result article content query result
▪ Komplexe Queries ▪ Operationen die “Full-Table-Scans” auslösen ▪ Between
Abfragen ▪ Geo-Koordinaten ▪ Sortierte Listen ▪ Keine Datenbank-Last MySQL entlasten
Document Store
Document Store Solr App persist ordered / grouped list /create
... /incident/list result /search fulltext search result
▪ nelmio/solarium-bundle ▪ Schnelle Abfragen ▪ Sortierte Listen ▪ Volltextsuche
“out of the box” ▪ Geeignet für grosse Dokumentarchive ▪ Keine Relationen Document Store
Keine Relationen?
▪ Solr ist kein RDBMS! ▪ Hält viele Daten, unterstützt
aber keine Strukturen ▪ Optionen ◦ Denormalisierung ◦ Object-Hydration (bspw. über Doctrine ORM) ◦ Polyglot-Persistence Relationen
Object-Hydration MySQL Solr App persist /create /article/42 article User Artikel
user by article index [hydrator] query result article + user
▪ floriansemm/solr-bundle ▪ Hydration über Solr-Index oder RDBMS ▪ Entity
Annotation Support ▪ Indexierung anhand von Doctrine-Events ▪ Unterstützt Doctrine ORM/ODM Object-Hydration
Entity Annotation
Entity Annotation
Entity Annotation
Repository
Polyglot Persistence
Polyglot Persistence Neo4j Solr App persist data persist structure data
query /create ... /article/42 result structure query result
▪ Trennung von Daten und Struktur ▪ Synchronisierung auf Business-Logik
Level ▪ Noch kein OSS-Bundle Polyglot Persistence
Query Language The Lucene
"A search string" Simple Query Query all Fields
title:"The Right Way" AND text:go Fields Field Name
title:"te?t" AND text:*test* Wildcard search Single Character Wildcard String
text:roam~0.8 Fuzzy search Levenshtein Distance
text:"solr apache"~10 Proximity search Word Distance
mod_date:[20020101 TO 20030101] Numeric Range
title:{Aida TO Carmen} String Range
text:"solr^4 apache" Term boosting Boost Factor
"Apache Solr" NOT "Webserver" Exclusion Exclude Result
(nginx OR apache) AND webserver Grouping
coole Features Noch mehr
▪ Cluster-Betrieb ▪ High Availability ▪ Fault Tolerance ▪ Konfigurationsmanagement
mit Zookeeper ▪ Benötigt Solr 4 ▪ cwiki.apache.org/confluence/x/ioDxAQ Solr Cloud
▪ Eingrenzung von Resultaten anhand verschiedener Filter ▪ A.k.a Explorative
Suche ▪ Benutzer kann Filter selbst wählen und verknüpfen ▪ wiki.apache.org/solr/SolrFacetingOverview Faceting
▪ nelmio/NelmioSolariumBundle ▪ floriansemm/SolrBundle ▪ swiss-php-friends/solr-query-builder ▪ frne/symfony-solr-playground Try it
out!
Web Solutions Big Data Analytics Mobile Fragen ? Input ?
Web Solutions Big Data Analytics Mobile Danke ;) @frank_neff www.frankneff.ch
www.ymc.ch github.com/frne speakerdeck. com/frne Bilder 1. http://bigdata.globant.com/?p=629 2. http://www.ecloudtimes.com/reduce-blog-loading-time/ 3. http://grabcad.com/ 4. http://www.colbenson.com/-/apache-solr-course-in-bilbao- tomorrow 5. http://www.solarium-project.org/ 6. http://office-lernen.com/ 7. https://forums.zarafa.com/ 8. https://plus.google.com/+RecordxpressCa/posts 9. https://www.simple-talk.com/sql 10. http://cloudconceptgroup.com/ 11. http://www.digitec.ch