Apache Solr Reference Guide Covering Apache Solr 6.0

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Here is a simple example of how one may query Solr using the Ruby response format: require 'net/http' h = Net::HTTP.new('localhost', 8983) hresp, data = h.get('/solr/techproducts/select?q=iPod&wt=ruby', nil) rsp = eval(data) puts 'number of matches = ' + rsp['response']['numFound'].to_s #print out the name field for each returned document rsp['response']['docs'].each { |doc| puts 'name field = ' + doc['name'\] } CSV Response Writer The CSV response writer returns a list of documents in comma-separated values (CSV) format. Other information that would normally be included in a response, such as facet information, is excluded. The CSV response writer supports multi-valued fields, as well as psuedo-fields, and the output of this CSV format is compatible with Solr's CSV update format. CSV Parameters These parameters specify the CSV format that will be returned. You can accept the default values or specify your own. Parameter Default Value csv.encapsulator " csv.escape None csv.separator , csv.header Defaults to true. If false, Solr does not print the column headers csv.newline \n csv.null Defaults to a zero length string. Use this parameter when a document has no value for a particular field. Multi-Valued Field CSV Parameters These parameters specify how multi-valued fields are encoded. Per-field overrides for these values can be done using f..csv.separator=| . Parameter Default Value csv.mv.encapsulator None csv.mv.escape \ csv.mv.separator Defaults to the csv.separator value Example Apache Solr Reference Guide 6.0 396
http://localhost:8983/solr/techproducts/select?q=ipod&fl=id,cat,name,popularity,pr ice,score&wt=csv returns: id,cat,name,popularity,price,score IW-02,"electronics,connector",iPod & iPod Mini USB 2.0 Cable,1,11.5,0.98867977 F8V7067-APL-KIT,"electronics,connector",Belkin Mobile Power Cord for iPod w/ Dock,1,19.95,0.6523595 MA147LL/A,"electronics,music",Apple 60 GB iPod with Video Playback Black,10,399.0,0.2446348 Velocity Response Writer The VelocityResponseWriter processes the Solr response and request context through Apache Velocity templating. See Velocity Response Writer section for details. Binary Response Writer Solr also includes a Response Writer that outputs binary format for use with a Java client. See Client APIs for more details. Smile Response Writer The Smile format is a JSON-compatible binary format, described in detail here: http://wiki.fasterxml.com/SmileFo rmat. Velocity Response Writer The VelocityResponseWriter is an optional plugin available in the contrib/velocity directory. It powers the /browse user interfaces when using configurations such as "basic_configs", "techproducts", and "example/files". Its JAR and dependencies must be added (via or solr/home lib inclusion), and must be registered in solrc onfig.xml like this: ${velocity.template.base.dir:} The above example shows the optional initialization and custom tool parameters used by Apache Solr Reference Guide 6.0 397
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TM Apache Solr Reference Guide Cove
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About This Guide This guide describ
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Getting Started Solr makes it easy
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Start Solr in the Foreground Since
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documents. Do not worry too much ab
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,price Faceted browsing is one of S
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for the simplest keyword searching
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Stop Informational Version Status H
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-noprompt Start Solr and suppress a
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The stop command sends a STOP reque
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$ bin/solr healthcheck -c gettingst
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collection. For example, the follow
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An example of this command with the
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with the fact that DocValues do not
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Accessing the URL http://hostname:8
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For an explanation of the various l
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Java Properties The Java Properties
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The collection-specific UI screens
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This screen also lets you adjust va
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Related Topics Uploading Data with
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Request-handler (qt) Specifies the
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about the core, and a secondary men
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0 13 {!lucene}*:* false _text_ 10
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This information may be useful for
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In the Solr universe, documents are
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The first line in the
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omitNorms If true, omits the norms
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TrieField TrieFloatField TrieIntFie
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Working with Dates Date Formatting
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UTC: http://localhost:8983/solr/my_
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Working with External Files and Pro
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str Stored string value of a field.
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1 one two three version: 1 stored:
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faceting 5 true 7 true 7 add multip
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useDocValuesAsStored If the field h
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Similarity Similarity is a Lucene c
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Multiple Commands in a Single POST
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Add a Dynamic Field Rule The add-dy
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The replace-field-type command repl
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Finally, repeated commands can be s
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81 Apache Solr Reference Guide 6.0
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id ... List Fields GET
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INPUT Path Parameters Key Descripti
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The query parameters can be added t
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Key collection Description The coll
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curl http://localhost:8983/solr/get
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OUTPUT Output Content The output wi
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Handling text properly will make yo
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Retrieving DocValues During Search
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true managed-schema Define an Upda
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Javadocs for update processor facto
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400 7 ERROR: [doc=19F] Error add
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Analyzers An analyzer examines the
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About Tokenizers The
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You configure the tokenizer for a t
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In: "Please, email john.doe@foo.c
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In: "babaloo" Out:"ba", "bab", "b
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Extract simple, capitalized words.
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lement. For example: The foll
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Example: Classic Filter This f
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Tokenizer to Filter: "four"(1), "sc
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In: "the quick brown fox jumped
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name: (string) The name of the norm
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appropriate for English language te
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N-Gram Filter Generates n-gram toke
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In: "cat concatenate catycat" To
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In: "jump jumping jumped" Tokenizer
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In: "To be, or not to be." Token
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enablePositionIncrements: if lucene
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couch,sofa,divan teh => the huge,gi
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useWhitelist: If true, the file def
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Tokenizer to Filter: "XL-4000/ES"(1
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The table below presents examples o
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KeywordRepeatFilterFactory Emits ea
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Using a Tailored ruleset: custom: (
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get the default rules for Germany /
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Language-Specific Factories Thes
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Arguments: language: (required) ste
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Out: "preziden", "preziden", "prezi
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Examples: In: "le chat,
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Example: Indonesian Solr incl
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Japanese Tokenizer Tokenizer for Ja
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In: "tirgiem tirgus" Tokenize
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Polish Solr provides support fo
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Factory class: solr.RussianLightSte
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Spanish Solr includes two stemmers
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Algorithms discussed in this sectio
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Caverphone To use this encoding in
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The " text_general" field type is d
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Indexing and Basic Data Operations
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$ bin/post -h Usage: post -c [OPTI
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The bin/post script currently deleg
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XML Update Commands Commit and Opti
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In general, the JSON update syntax
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if split=/ (i.e., you want your JSO
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curl 'http://localhost:8983/solr/my
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So, if no params are passed, the en
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Path /update/csv Default Parameters
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Topics covered in this section: Key
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defaultField extractOnly extractFor
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EEEE, dd-MMM-yy HH:mm:ss zzz EEE MM
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curl "http://localhost:8983/solr/te
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Configuration Configuring solrconfi
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Datasources can still be specifie
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dateFormat A java.text.SimpleDateFo
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The URLDataSource type accepts thes
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deletedPkQuery deltaImportQuery SQL
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The entity attributes unique to the
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onError By default, the TikaEntityP
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While there are use cases where you
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The HTMLStripTransformer You can us
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The emailids field in the table can
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set Modifier Usage Set or replace t
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$ curl -X POST -H 'Content-Type: ap
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Method MD5Signature Lookup3Signatur
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language identification and a field
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langid.fallbackFields string none n
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1. Copy solr-uima-VERSION.jar (unde
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VALID_ALCHEMYAPI_KEY is your Alch
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Overview of Searching in Solr Solr
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Velocity Search UI Solr includes a
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The table below summarizes Solr's c
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Setting the start parameter to some
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The debug Parameter The debug param
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The echoParams Parameter The echoPa
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The Standard Query Parser's Respons
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Multiple characters (matches zero o
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field. For example, suppose an inde
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Grouping Terms to Form Sub-Queries
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In addition to the common request p
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If the calculations based on the pa
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http://localhost:8983/solr/techprod
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Examples of Queries Submitted to th
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it includes parentheses. For exampl
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dist docfreq(field,val) exists fiel
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max maxdoc min ms norm( field) not
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ecip rord scale sqedist Performs a
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tf top totaltermfreq xor() Term fre
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is equivalent to: q={!type=dismax q
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This parser takes a query that matc
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ds.txt for your collection, and ind
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One way to model this graph as Solr
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With this alternative document mode
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y wrapping all SHOULD clauses in a
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Re-Ranking Query Parser The ReRankQ
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example configuration below, client
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TermsQueryBuilder UserInputQueryB
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The facet.field parameter identifie
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The default value is fc (except for
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The facet.range.hardend parameter i
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Using the " bin/solr -e techproduct
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"price":{ "min":479.95001220703125,
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307 Apache Solr Reference Guide 6.0
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... "start":"2006-01-01T00:00:00Z",
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and exclude those filters when face
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document sample 1 parent 11 Red
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Standard Highlighter The standard h
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hl.usePhraseHighlighter true If set
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hl.maxMultiValuedToExamine integer.
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Related Content HighlightingParamet
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hl.score.b 0.75 Specifies BM25 leng
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Levenshtein metric, which is the sa
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spellcheck Turns on or off SpellChe
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The spellcheck.alternativeTermCount
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1 0 5 0 dell 1 1 6 17 0 u
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Transforming Result Documents Docum
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childFilter - query to filter which
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name lookupImpl dictionaryImpl A sy
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allTermsRequired: Boolean option fo
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This dictionary implementation take
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Example query: http://localhost:898
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Page 363 and 364: To enable the clustering component
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Page 405 and 406: To export the full sorted result se
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Page 423 and 424: Parameters Syntax StreamExpression
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Page 427 and 428: worker nodes. It involves sorting a
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used instead of the default. First-
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We've defined three paths with this
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1000 commitWithin The commitWithin
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accessed frequently tend to stay in
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the filterCache will be checked for
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equestParsers Element The sub-elem
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2. required between requests. The f
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updateRequestProcessorChains and up
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Constructing a chain at request tim
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stripping index.html), the domain a
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In Solr, the term core is used to r
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shareSchema transientCacheSize conf
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name=my_core_name Placement of core
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CREATE RELOAD RENAME SWAP UNLOAD ME
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RELOAD The RELOAD action loads a ne
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In this example, we use the indexDi
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Parameter Type Required Default Des
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{ } "response":{"numFound":1,"start
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Commands for Common Properties The
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The Config API does not let you cre
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Examples Creating and Updating Comm
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{"overlay":{ "znodeVersion":5, "use
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curl http://localhost:8983/solr/tec
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Managed Resources Managed resources
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Synonyms For the most part, the API
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{ "responseHeader":{ "status":0, "Q
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curl http://localhost:8983/solr/tec
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the signature of the jar that you g
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Managing Solr This section describe
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and runs Solr as the solr user. Con
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Solr process PID running on port 89
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_JMX_OPTS property in the include f
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security.json { } "authentication"
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during initialization. The authoriz
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curl --user solr:SolrRocks http://l
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Consult Your Kerberos Admins! Befor
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If you already have a /security.jso
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in/solr -c -z server1:2181,server2:
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st Parameters API, and other APIs w
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curl --user solr:SolrRocks -H 'Cont
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in/solr.in.sh example SOLR_SSL_* co
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working through the previous sectio
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{ "responseHeader":{ "status":0, "Q
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SolrCloud Instances In SolrCloud mo
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authentication from Solr, you need
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The backup command is an asynchrono
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In addition to the logging options
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log4j.appender.file.MaxFileSize=100
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MBean Request Handler The MBean Req
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SolrCloud Example Interactive Start
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startup a SolrCloud cluster using t
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Then at query time, you include the
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http://localhost:8983/solr/gettings
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Each shard serves top-level query r
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Write Side Fault Tolerance SolrClou
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Create the instance Creating the in
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Finally, create your myid files in
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Changing ACL Schemes Example Usages
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When solr wants to create a new zno
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set SOLR_ZK_CREDS_AND_ACLS=-DzkDige
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maxShardsPerNode integer No 1 When
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It's possible to edit multiple attr
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Query Parameters Key Type Required
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Create a Shard Shards can only crea
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The CREATEALIAS action will create
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0 603 0 19 0 67 Delete
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http://localhost:8983/solr/admin/co
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The response will include the statu
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0 5007 0 8 0 1 test2_shard
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Key Type Required Description role
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Cluster Status /admin/collections?a
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} } "127.0.1.1:8900_solr"] Request
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0 9 Examining the clusterstate a
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0 123 success Already leader 19
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-z -zkhost -c -collection -d -con
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... ${solr.data.dir:} ... 3. The
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will explain why the request failed
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The nodes are sorted first and the
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Defining Rules Rules are specified
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Updates and deletes are first writt
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Rely on two storages: an ephemeral
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Target Configuration Here is a typi
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core/cdcr?action=QUEUES: Fetches st
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Output { } "responseHeader": { "sta
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{ } responseHeader={ status=0, QTim
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http://localhost:898 ${TargetZk}
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Legacy Scaling and Distribution Thi
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Limitations to Distributed Search D
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0 8 *:* localhost:8983/solr/core1
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Master and Slave Update Optimizatio
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http://remote_host:port/solr/core
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A commit command is issued on the s
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is a large expense, but not nearly
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Apache Solr Reference Guide 6.0 639
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The Solr Wiki contains a list of cl
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pSolrClient , or CloudSolrClient .
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upload using binary format, which i
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}} 'manufacturedate_dt'=>'2005-10-1
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Solr Glossary Where possible, terms
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Literally, N data about data. Metad
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See also #Inverse document frequenc
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A new graph query parser makes it p
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Upgrading a Solr Cluster This page
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proceeding to upgrade the next node
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