Apache Solr Reference Guide Covering Apache Solr 6.0

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default A default value that will be added automatically to any document that does not have a value in this field when it is indexed. If this property is not specified, there is no default. Optional Field Type Override Properties Fields can have many of the same properties as field types. Properties from the table below which are specified on an individual field will override any explicit value for that property specified on the the of the field, or any implicit default property value provided by the underlying FieldType implementation. The table below is reproduced from Field Type Definitions and Properties, which has more details: Property Description Values Implicit Default indexed If true, the value of the field can be used in queries to retrieve matching documents. true or false true stored If true, the actual value of the field can be retrieved by queries. true or false true docValues If true, the value of the field will be put in a column-oriented DocValues structure. true or false false sortMissingFirst sortMissingLast Control the placement of documents when a sort field is not present. true or false false multiValued If true, indicates that a single document might contain multiple values for this field type. true or false false omitNorms If true, omits the norms associated with this field (this disables length normalization and index-time boosting for the field, and saves some memory). Defaults to true for all primitive (non-analyzed) field types, such as int, float, data, bool, and string. Only full-text fields or fields that need an index-time boost need norms. true or false * omitTermFreqAndPositions If true, omits term frequency, positions, and payloads from postings for this field. This can be a performance boost for fields that don't require that information. It also reduces the storage space required for the index. Queries that rely on position that are issued on a field with this option will silently fail to find documents. This property defaults to true for all field types that are not text fields. true or false * omitPositions Similar to omitTermFreqAndPositions but preserves term frequency information. true or false * termVectors termPositions termOffsets termPayloads These options instruct Solr to maintain full term vectors for each document, optionally including position, offset and payload information for each term occurrence in those vectors. These can be used to accelerate highlighting and other ancillary functionality, but impose a substantial cost in terms of index size. They are not necessary for typical uses of Solr. true or false false required Instructs Solr to reject any attempts to add a document which does not have a value for this field. This property defaults to false. true or false false Apache Solr Reference Guide 6.0 68
useDocValuesAsStored If the field has docValues enabled, setting this to true would allow the field to be returned as if it were a stored field (even if it has stored=false ) when matching "*" in an fl parameter. true or false true Related Topics SchemaXML-Fields Field Options by Use Case Copying Fields You might want to interpret some document fields in more than one way. Solr has a mechanism for making copies of fields so that you can apply several distinct field types to a single piece of incoming information. The name of the field you want to copy is the source, and the name of the copy is the destination. In schema.xm l, it's very simple to make copies of fields: In this example, we want Solr to copy the cat field to a field named text. Fields are copied before analysis is done, meaning you can have two fields with identical original content, but which use different analysis chains and are stored in the index differently. In the example above, if the text destination field has data of its own in the input documents, the contents of the cat field will be added as additional values – just as if all of the values had originally been specified by the client. Remember to configure your fields as multivalued="true" if they will ultimately get multiple values (either from a multivalued source or from multiple copyField directives). A common usage for this functionality is to create a single "search" field that will serve as the default query field when users or clients do not specify a field to query. For example, title, author, keywords, and body may all be fields that should be searched by default, with copy field rules for each field to copy to a catchall field (for example, it could be named anything). Later you can set a rule in solrconfig.xml to search the catchal l field by default. One caveat to this is your index will grow when using copy fields. However, whether this becomes problematic for you and the final size will depend on the number of fields being copied, the number of destination fields being copied to, the analysis in use, and the available disk space. The maxChars parameter, an int parameter, establishes an upper limit for the number of characters to be copied from the source value when constructing the value added to the destination field. This limit is useful for situations in which you want to copy some data from the source field, but also control the size of index files. Both the source and the destination of copyField can contain either leading or trailing asterisks, which will match anything. For example, the following line will copy the contents of all incoming fields that match the wildcard pattern *_t to the text field.: The copyField command can use a wildcard (*) character in the dest parameter only if the source p arameter contains one as well. copyField uses the matching glob from the source field for the dest fie ld name into which the source content is copied. Apache Solr Reference Guide 6.0 69
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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
Page 17 and 18: -noprompt Start Solr and suppress a
Page 19 and 20: The stop command sends a STOP reque
Page 21 and 22: $ bin/solr healthcheck -c gettingst
Page 23 and 24: collection. For example, the follow
Page 25 and 26: An example of this command with the
Page 27 and 28: with the fact that DocValues do not
Page 29 and 30: Accessing the URL http://hostname:8
Page 31 and 32: For an explanation of the various l
Page 33 and 34: Java Properties The Java Properties
Page 35 and 36: The collection-specific UI screens
Page 37 and 38: This screen also lets you adjust va
Page 39 and 40: Related Topics Uploading Data with
Page 41 and 42: Request-handler (qt) Specifies the
Page 43 and 44: about the core, and a secondary men
Page 45 and 46: 0 13 {!lucene}*:* false _text_ 10
Page 47 and 48: This information may be useful for
Page 49 and 50: In the Solr universe, documents are
Page 51 and 52: The first line in the
Page 53 and 54: omitNorms If true, omits the norms
Page 55 and 56: TrieField TrieFloatField TrieIntFie
Page 57 and 58: Working with Dates Date Formatting
Page 59 and 60: UTC: http://localhost:8983/solr/my_
Page 61 and 62: Working with External Files and Pro
Page 63 and 64: str Stored string value of a field.
Page 65 and 66: 1 one two three version: 1 stored:
Page 67: faceting 5 true 7 true 7 add multip
Page 71 and 72: Similarity Similarity is a Lucene c
Page 73 and 74: Multiple Commands in a Single POST
Page 75 and 76: Add a Dynamic Field Rule The add-dy
Page 77 and 78: The replace-field-type command repl
Page 79 and 80: Finally, repeated commands can be s
Page 81 and 82: 81 Apache Solr Reference Guide 6.0
Page 83 and 84: id ... List Fields GET
Page 85 and 86: INPUT Path Parameters Key Descripti
Page 87 and 88: The query parameters can be added t
Page 89 and 90: Key collection Description The coll
Page 91 and 92: curl http://localhost:8983/solr/get
Page 93 and 94: OUTPUT Output Content The output wi
Page 95 and 96: Handling text properly will make yo
Page 97 and 98: Retrieving DocValues During Search
Page 99 and 100: true managed-schema Define an Upda
Page 101 and 102: Javadocs for update processor facto
Page 103 and 104: 400 7 ERROR: [doc=19F] Error add
Page 105 and 106: Analyzers An analyzer examines the
Page 107 and 108: About Tokenizers The
Page 109 and 110: You configure the tokenizer for a t
Page 111 and 112: In: "Please, email john.doe@foo.c
Page 113 and 114: In: "babaloo" Out:"ba", "bab", "b
Page 115 and 116: Extract simple, capitalized words.
Page 117 and 118: 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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solrconfig.xml mySuggester Analyz
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paging, and filtering using common
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Fetching A Large Number of Sorted R
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$ curl '...&rows=10&sort=id+asc&cur
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The psuedo-code for tailing a curso
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group.facet Boolean Determines whet
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The Collapsing query parser and the
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q=foo&fq={!collapse field=ISBN}&exp
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To enable the clustering component
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There were a few clusters discover
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clustering When true, clustering co
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The default language can also be se
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See the section SpatialRecursivePre
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sphere; and sqedist, to calculate t
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maxDistErr worldBounds Defines the
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interface being developed allows an
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The parameters below allow you to c
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0 2 5 3 3 3 3 3 3 3 3 3 Get
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The TermVectorComponent is a search
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Boolean Parameters Description Type
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0.0 3.0 32 0 10.0 22.0 0.3125 0.7
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Additional "Expert" local params ar
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config-file Path to the file that d
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csv json php phps python ruby smile
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text/plain Python Response Writer
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v.layout.enabled v.contentType v.js
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maxDocs maxTime Integer. Defines th
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${solr.ulog.dir:} Real Time Get re
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To export the full sorted result se
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Some streaming functions act as str
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expr=search(collection1, zkHost="lo
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facet(collection1, q="*:*", buckets
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Parameters Syntax StreamExpression
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-1, // checkpoint every X tuples, i
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The order of the streams does not m
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intersect( search(collection1, q=a_
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outerHashJoin( search(people, q=*:*
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Parameters Syntax StreamExpression
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unique( search(collection1, q="*:*"
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worker nodes. It involves sorting a
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{"result-set":{"docs":[ {"count(*)"
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engine and are generated by the Sta
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the Data Tables. The worker nodes e
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The Well-Configured Solr Instance T
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#core.properties name=collection2 m
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Managed Schema Default When a is n
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Merging Index Segments mergePolicyF
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lockType The LockFactory options sp
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own request handler, you should mak
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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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