Apache Solr Reference Guide Covering Apache Solr 6.0

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are pulled from server/solr/configsets/ so you can review them beforehand if you wish. The data_drive n_schema_configs configuration (the default) is useful when you're still designing a schema for your documents and need some flexiblity as you experiment with Solr. At this point, you should have a new collection created in your local SolrCloud cluster. To verify this, you can run the status command: $ bin/solr status If you encounter any errors during this process, check the Solr log files in example/cloud/node1/logs and e xample/cloud/node2/logs. You can see how your collection is deployed across the cluster by visiting the cloud panel in the Solr Admin UI: h ttp://localhost:8983/solr/#/~cloud. Solr also provides a way to perform basic diagnostics for a collection using the healthcheck command: $ bin/solr healthcheck -c gettingstarted The healthcheck command gathers basic information about each replica in a collection, such as number of docs, current status (active, down, etc), and address (where the replica lives in the cluster). Documents can now be added to SolrCloud using the Post Tool. To stop Solr in SolrCloud mode, you would use the bin/solr script and issue the stop command, as in: $ bin/solr stop -all Starting with -noprompt You can also get SolrCloud started with all the defaults instead of the interactive session using the following command: $ bin/solr -e cloud -noprompt Restarting Nodes You can restart your SolrCloud nodes using the bin/solr script. For instance, to restart node1 running on port 8983 (with an embedded ZooKeeper server), you would do: $ bin/solr restart -c -p 8983 -s example/cloud/node1/solr To restart node2 running on port 7574, you can do: $ bin/solr restart -c -p 7574 -z localhost:9983 -s example/cloud/node2/solr Notice that you need to specify the ZooKeeper address (-z localhost:9983) when starting node2 so that it can join the cluster with node1. Adding a node to a cluster Adding a node to an existing cluster is a bit advanced and involves a little more understanding of Solr. Once you Apache Solr Reference Guide 6.0 546
startup a SolrCloud cluster using the startup scripts, you can add a new node to it by: $ mkdir $ cp $ bin/solr start -cloud -s solr.home/solr -p -z Notice that the above requires you to create a Solr home directory. You either need to copy solr.xml to the so lr_home directory, or keep in centrally in ZooKeeper /solr.xml. Example (with directory structure) that adds a node to an example started with "bin/solr -e cloud": $ mkdir -p example/cloud/node3/solr $ cp server/solr/solr.xml example/cloud/node3/solr $ bin/solr start -cloud -s example/cloud/node3/solr -p 8987 -z localhost:9983 The previous command will start another Solr node on port 8987 with Solr home set to example/cloud/node3 /solr. The new node will write its log files to example/cloud/node3/logs. Once you're comfortable with how the SolrCloud example works, we recommend using the process described in Taking Solr to Production for setting up SolrCloud nodes in production. How SolrCloud Works The following sections cover provide general information about how various SolrCloud features work. To understand these features, it's important to first understand a few key concepts that relate to SolrCloud. Shards and Indexing Data in SolrCloud Distributed Requests Read and Write Side Fault Tolerance If you are already familiar with SolrCloud concepts and basic functionality, you can skip to the section covering S olrCloud Configuration and Parameters. Key SolrCloud Concepts A SolrCloud cluster consists of some "logical" concepts layered on top of some "physical" concepts. Logical A Cluster can host multiple Collections of Solr Documents. A collection can be partitioned into multiple Shards, which contain a subset of the Documents in the Collection. The number of Shards that a Collection has determines: The theoretical limit to the number of Documents that Collection can reasonably contain. The amount of parallelization that is possible for an individual search request. Physical A Cluster is made up of one or more Solr Nodes, which are running instances of the Solr server process. Each Node can host multiple Cores. Each Core in a Cluster is a physical Replica for a logical Shard. Every Replica uses the same configuration specified for the Collection that it is a part of. The number of Replicas that each Shard has determines: Apache Solr Reference Guide 6.0 547
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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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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
Page 495 and 496: Synonyms For the most part, the API
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Page 503 and 504: Managing Solr This section describe
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Page 513 and 514: during initialization. The authoriz
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Page 517 and 518: Consult Your Kerberos Admins! Befor
Page 519 and 520: If you already have a /security.jso
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Page 523 and 524: st Parameters API, and other APIs w
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Page 533 and 534: SolrCloud Instances In SolrCloud mo
Page 535 and 536: authentication from Solr, you need
Page 537 and 538: The backup command is an asynchrono
Page 539 and 540: In addition to the logging options
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Page 543 and 544: MBean Request Handler The MBean Req
Page 545: SolrCloud Example Interactive Start
Page 549 and 550: Then at query time, you include the
Page 551 and 552: http://localhost:8983/solr/gettings
Page 553 and 554: Each shard serves top-level query r
Page 555 and 556: Write Side Fault Tolerance SolrClou
Page 557 and 558: Create the instance Creating the in
Page 559 and 560: Finally, create your myid files in
Page 561 and 562: Changing ACL Schemes Example Usages
Page 563 and 564: When solr wants to create a new zno
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Page 567 and 568: maxShardsPerNode integer No 1 When
Page 569 and 570: It's possible to edit multiple attr
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Page 573 and 574: Create a Shard Shards can only crea
Page 575 and 576: The CREATEALIAS action will create
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Page 579 and 580: http://localhost:8983/solr/admin/co
Page 581 and 582: The response will include the statu
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Page 585 and 586: Key Type Required Description role
Page 587 and 588: Cluster Status /admin/collections?a
Page 589 and 590: } } "127.0.1.1:8900_solr"] Request
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0 123 success Already leader 19
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http://localhost:8983/solr/admin/co
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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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