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Posted to solr-user@lucene.apache.org by Demian Katz <de...@villanova.edu> on 2019/02/21 18:11:57 UTC
Solr Cell, Tika and UpdateProcessorChains
I'm posting this question on behalf of Whitney Clarke, who is a pending member of this list but is not able to post on her own yet. I've been working with her on some troubleshooting, but I'm not familiar with the components she's using and thought somebody here might be able to point her in the right direction more quickly than I can.
Here is her original inquiry:
I am pulling data from a local drive for indexing. I am using solr cell and tika in schemaless mode. I am attempting to rewrite certain field information prior to indexing using html-strip and regex UpdateProcessorChains. However, when run, the UpdateProcessorChains never appear to get invoked.
For example,
I am looking to rewrite "url":"e:\\documents\\apiscript.txt" to be http://apiscript.txt . My current solrconfig is trying to rewrite id and put the rewritten link into url, but this is just the recent attempt of many different ways I have tried to get it to work.
My other issues is with the content field. I am trying to strip that field down to just the actual text of the document. I am getting all meta data in it as well. Any suggestions?
Thanks,
Whitney
Whitney's latest solrconfig.xml in pasted in full below - as she notes, we've been through many iterations without any success. The key question is how to manipulate the data retrieved from Tika prior to indexing it. Is there a documented best practice for this type of situation, or any tips on how to troubleshoot when nothing appears to be happening?
Thanks,
Demian
<?xml version="1.0" encoding="UTF-8" ?>
<config>
<luceneMatchVersion>7.3.1</luceneMatchVersion>
<lib dir="../../vendor/contrib/extraction/lib" regex=".*\.jar" />
<lib dir="../../vendor/dist/" regex="solr-cell-\d.*\.jar" />
<lib dir="../../vendor/contrib/clustering/lib/" regex=".*\.jar" />
<lib dir="../../vendor/dist/" regex="solr-clustering-\d.*\.jar" />
<lib dir="../../vendor/contrib/langid/lib/" regex=".*\.jar" />
<lib dir="../../vendor/dist/" regex="solr-langid-\d.*\.jar" />
<lib dir="../jars" regex=".*\.jar" />
<dataDir>${solr.solr.home:./solr}/text_test</dataDir>
<directoryFactory name="DirectoryFactory" class="${solr.directoryFactory:solr.NRTCachingDirectoryFactory}"/>
<codecFactory class="solr.SchemaCodecFactory"/>
<updateHandler class="solr.DirectUpdateHandler2">
<updateLog>
<str name="dir">${solr.ulog.dir:}</str>
<int name="numVersionBuckets">${solr.ulog.numVersionBuckets:65536}</int>
</updateLog>
<autoCommit>
<maxTime>${solr.autoCommit.maxTime:15000}</maxTime>
<openSearcher>false</openSearcher>
</autoCommit>
</updateHandler>
<query>
<maxBooleanClauses>1024</maxBooleanClauses>
<filterCache class="solr.FastLRUCache"
size="512"
initialSize="512"
autowarmCount="0"/>
<queryResultCache class="solr.LRUCache"
size="512"
initialSize="512"
autowarmCount="0"/>
<documentCache class="solr.LRUCache"
size="512"
initialSize="512"
autowarmCount="0"/>
<enableLazyFieldLoading>true</enableLazyFieldLoading>
<queryResultWindowSize>20</queryResultWindowSize>
<queryResultMaxDocsCached>200</queryResultMaxDocsCached>
<listener event="newSearcher" class="solr.QuerySenderListener">
<arr name="queries">
<!--
<lst><str name="q">solr</str><str name="sort">price asc</str></lst>
<lst><str name="q">rocks</str><str name="sort">weight asc</str></lst>
-->
</arr>
</listener>
<listener event="firstSearcher" class="solr.QuerySenderListener">
<arr name="queries">
<!--
<lst>
<str name="q">static firstSearcher warming in solrconfig.xml</str>
</lst>
-->
</arr>
</listener>
<useColdSearcher>false</useColdSearcher>
</query>
<requestDispatcher>
<httpCaching never304="true" />
</requestDispatcher>
<requestHandler name="/select" class="solr.SearchHandler">
<!-- default values for query parameters can be specified, these
will be overridden by parameters in the request
-->
<lst name="defaults">
<str name="echoParams">explicit</str>
<!-- Default search field -->
<str name="df">content</str>
<!-- Change from JSON to XML format (the default prior to Solr 7.0)
<str name="wt">xml</str>
-->
</lst>
</requestHandler>
<!-- A request handler that returns indented JSON by default -->
<requestHandler name="/query" class="solr.SearchHandler">
<lst name="defaults">
<str name="echoParams">explicit</str>
<str name="wt">json</str>
<str name="indent">true</str>
</lst>
</requestHandler>
<initParams path="/update/**">
<lst name="defaults">
<str name="update.chain">add-unknown-fields-to-the-schema</str>
<str name="update.chain">html-strip-features</str>
<str name="update.chain">regex-replace</str>
</lst>
</initParams>
<requestHandler name="/update/extract"
startup="lazy"
class="solr.extraction.ExtractingRequestHandler" >
<lst name="defaults">
<!-- capture link hrefs but ignore div attributes -->
<str name="captureAttr">true</str>
<str name="fmap.a">links</str>
<str name="fmap.div">ignored_</str>
<str name="lowernames">true</str>
<str name="uprefix">ignored_</str>
</lst>
</requestHandler>
<searchComponent name="spellcheck" class="solr.SpellCheckComponent">
<str name="queryAnalyzerFieldType">text_general</str>
<!-- Multiple "Spell Checkers" can be declared and used by this
component
-->
<!-- a spellchecker built from a field of the main index -->
<lst name="spellchecker">
<str name="name">default</str>
<str name="field">_text_</str>
<str name="classname">solr.DirectSolrSpellChecker</str>
<!-- the spellcheck distance measure used, the default is the internal levenshtein -->
<str name="distanceMeasure">internal</str>
<!-- minimum accuracy needed to be considered a valid spellcheck suggestion -->
<float name="accuracy">0.5</float>
<!-- the maximum #edits we consider when enumerating terms: can be 1 or 2 -->
<int name="maxEdits">2</int>
<!-- the minimum shared prefix when enumerating terms -->
<int name="minPrefix">1</int>
<!-- maximum number of inspections per result. -->
<int name="maxInspections">5</int>
<!-- minimum length of a query term to be considered for correction -->
<int name="minQueryLength">4</int>
<!-- maximum threshold of documents a query term can appear to be considered for correction -->
<float name="maxQueryFrequency">0.01</float>
<!-- uncomment this to require suggestions to occur in 1% of the documents
<float name="thresholdTokenFrequency">.01</float>
-->
</lst>
</searchComponent>
<requestHandler name="/spell" class="solr.SearchHandler" startup="lazy">
<lst name="defaults">
<!-- Solr will use suggestions from both the 'default' spellchecker
and from the 'wordbreak' spellchecker and combine them.
collations (re-written queries) can include a combination of
corrections from both spellcheckers -->
<str name="spellcheck.dictionary">default</str>
<str name="spellcheck">on</str>
<str name="spellcheck.extendedResults">true</str>
<str name="spellcheck.count">10</str>
<str name="spellcheck.alternativeTermCount">5</str>
<str name="spellcheck.maxResultsForSuggest">5</str>
<str name="spellcheck.collate">true</str>
<str name="spellcheck.collateExtendedResults">true</str>
<str name="spellcheck.maxCollationTries">10</str>
<str name="spellcheck.maxCollations">5</str>
</lst>
<arr name="last-components">
<str>spellcheck</str>
</arr>
</requestHandler>
<searchComponent class="solr.HighlightComponent" name="highlight">
<highlighting>
<!-- Configure the standard fragmenter -->
<!-- This could most likely be commented out in the "default" case -->
<fragmenter name="gap"
default="true"
class="solr.highlight.GapFragmenter">
<lst name="defaults">
<int name="hl.fragsize">100</int>
</lst>
</fragmenter>
<!-- A regular-expression-based fragmenter
(for sentence extraction)
-->
<fragmenter name="regex"
class="solr.highlight.RegexFragmenter">
<lst name="defaults">
<!-- slightly smaller fragsizes work better because of slop -->
<int name="hl.fragsize">70</int>
<!-- allow 50% slop on fragment sizes -->
<float name="hl.regex.slop">0.5</float>
<!-- a basic sentence pattern -->
<str name="hl.regex.pattern">[-\w ,/\n\"']{20,200}</str>
</lst>
</fragmenter>
<!-- Configure the standard formatter -->
<formatter name="html"
default="true"
class="solr.highlight.HtmlFormatter">
<lst name="defaults">
<str name="hl.simple.pre"><![CDATA[<em>]]></str>
<str name="hl.simple.post"><![CDATA[</em>]]></str>
</lst>
</formatter>
<!-- Configure the standard encoder -->
<encoder name="html"
class="solr.highlight.HtmlEncoder" />
<!-- Configure the standard fragListBuilder -->
<fragListBuilder name="simple"
class="solr.highlight.SimpleFragListBuilder"/>
<!-- Configure the single fragListBuilder -->
<fragListBuilder name="single"
class="solr.highlight.SingleFragListBuilder"/>
<!-- Configure the weighted fragListBuilder -->
<fragListBuilder name="weighted"
default="true"
class="solr.highlight.WeightedFragListBuilder"/>
<!-- default tag FragmentsBuilder -->
<fragmentsBuilder name="default"
default="true"
class="solr.highlight.ScoreOrderFragmentsBuilder">
<!--
<lst name="defaults">
<str name="hl.multiValuedSeparatorChar">/</str>
</lst>
-->
</fragmentsBuilder>
<!-- multi-colored tag FragmentsBuilder -->
<fragmentsBuilder name="colored"
class="solr.highlight.ScoreOrderFragmentsBuilder">
<lst name="defaults">
<str name="hl.tag.pre"><![CDATA[
<b style="background:yellow">,<b style="background:lawgreen">,
<b style="background:aquamarine">,<b style="background:magenta">,
<b style="background:palegreen">,<b style="background:coral">,
<b style="background:wheat">,<b style="background:khaki">,
<b style="background:lime">,<b style="background:deepskyblue">]]></str>
<str name="hl.tag.post"><![CDATA[</b>]]></str>
</lst>
</fragmentsBuilder>
<boundaryScanner name="default"
default="true"
class="solr.highlight.SimpleBoundaryScanner">
<lst name="defaults">
<str name="hl.bs.maxScan">10</str>
<str name="hl.bs.chars">.,!? 	 </str>
</lst>
</boundaryScanner>
<boundaryScanner name="breakIterator"
class="solr.highlight.BreakIteratorBoundaryScanner">
<lst name="defaults">
<!-- type should be one of CHARACTER, WORD(default), LINE and SENTENCE -->
<str name="hl.bs.type">WORD</str>
<!-- language and country are used when constructing Locale object. -->
<!-- And the Locale object will be used when getting instance of BreakIterator -->
<str name="hl.bs.language">en</str>
<str name="hl.bs.country">US</str>
</lst>
</boundaryScanner>
</highlighting>
</searchComponent>
<updateProcessor class="solr.UUIDUpdateProcessorFactory" name="uuid"/>
<updateProcessor class="solr.RemoveBlankFieldUpdateProcessorFactory" name="remove-blank"/>
<updateProcessor class="solr.FieldNameMutatingUpdateProcessorFactory" name="field-name-mutating">
<str name="pattern">[^\w-\.]</str>
<str name="replacement">_</str>
</updateProcessor>
<updateProcessor class="solr.ParseBooleanFieldUpdateProcessorFactory" name="parse-boolean"/>
<updateProcessor class="solr.ParseLongFieldUpdateProcessorFactory" name="parse-long"/>
<updateProcessor class="solr.ParseDoubleFieldUpdateProcessorFactory" name="parse-double"/>
<updateProcessor class="solr.ParseDateFieldUpdateProcessorFactory" name="parse-date">
<arr name="format">
<str>yyyy-MM-dd'T'HH:mm:ss.SSSZ</str>
<str>yyyy-MM-dd'T'HH:mm:ss,SSSZ</str>
<str>yyyy-MM-dd'T'HH:mm:ss.SSS</str>
<str>yyyy-MM-dd'T'HH:mm:ss,SSS</str>
<str>yyyy-MM-dd'T'HH:mm:ssZ</str>
<str>yyyy-MM-dd'T'HH:mm:ss</str>
<str>yyyy-MM-dd'T'HH:mmZ</str>
<str>yyyy-MM-dd'T'HH:mm</str>
<str>yyyy-MM-dd HH:mm:ss.SSSZ</str>
<str>yyyy-MM-dd HH:mm:ss,SSSZ</str>
<str>yyyy-MM-dd HH:mm:ss.SSS</str>
<str>yyyy-MM-dd HH:mm:ss,SSS</str>
<str>yyyy-MM-dd HH:mm:ssZ</str>
<str>yyyy-MM-dd HH:mm:ss</str>
<str>yyyy-MM-dd HH:mmZ</str>
<str>yyyy-MM-dd HH:mm</str>
<str>yyyy-MM-dd</str>
</arr>
</updateProcessor>
<updateProcessor class="solr.AddSchemaFieldsUpdateProcessorFactory" name="add-schema-fields">
<lst name="typeMapping">
<str name="valueClass">java.lang.String</str>
<str name="fieldType">text_general</str>
<lst name="copyField">
<str name="dest">*_str</str>
<int name="maxChars">256</int>
</lst>
<!-- Use as default mapping instead of defaultFieldType -->
<bool name="default">true</bool>
</lst>
<lst name="typeMapping">
<str name="valueClass">java.lang.Boolean</str>
<str name="fieldType">booleans</str>
</lst>
<lst name="typeMapping">
<str name="valueClass">java.util.Date</str>
<str name="fieldType">pdates</str>
</lst>
<lst name="typeMapping">
<str name="valueClass">java.lang.Long</str>
<str name="valueClass">java.lang.Integer</str>
<str name="fieldType">plongs</str>
</lst>
<lst name="typeMapping">
<str name="valueClass">java.lang.Number</str>
<str name="fieldType">pdoubles</str>
</lst>
</updateProcessor>
<!-- The update.autoCreateFields property can be turned to false to disable schemaless mode -->
<updateRequestProcessorChain name="add-unknown-fields-to-the-schema" default="${update.autoCreateFields:true}"
processor="uuid,remove-blank,field-name-mutating,parse-boolean,parse-long,parse-double,parse-date,add-schema-fields">
<processor class="solr.LogUpdateProcessorFactory"/>
<processor class="solr.DistributedUpdateProcessorFactory"/>
<processor class="solr.RunUpdateProcessorFactory"/>
</updateRequestProcessorChain>
<updateRequestProcessorChain name="html-strip-features">
<processor class="solr.HTMLStripFieldUpdateProcessorFactory">
<str name="fieldName">_text_</str>
</processor>
<processor class="solr.LogUpdateProcessorFactory" />
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
<updateRequestProcessorChain name="regex-replace">
<processor class="solr.RegexReplaceProcessorFactory">
<str name="fieldName">id</str>
<str name="pattern">^[a-z]:\\\\\w+\\\\</str>
<str name="replacement">http://</str>
<bool name="literalReplacement">true</bool>
</processor>
<processor class="solr.LogUpdateProcessorFactory" />
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
<updateRequestProcessorChain name="langid">
<processor class="org.apache.solr.update.processor.TikaLanguageIdentifierUpdateProcessorFactory">
<str name="langid.fl">text,title,subject,description</str>
<str name="langid.langField">language_s</str>
<str name="langid.fallback">en</str>
</processor>
<processor class="solr.LogUpdateProcessorFactory" />
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
<queryResponseWriter name="json" class="solr.JSONResponseWriter">
<!-- For the purposes of the tutorial, JSON responses are written as
plain text so that they are easy to read in *any* browser.
If you expect a MIME type of "application/json" just remove this override.
-->
<str name="content-type">text/plain; charset=UTF-8</str>
</queryResponseWriter>
<queryResponseWriter name="xslt" class="solr.XSLTResponseWriter">
<int name="xsltCacheLifetimeSeconds">5</int>
</queryResponseWriter>
</config>
Re: Solr Cell, Tika and UpdateProcessorChains
Posted by Erick Erickson <er...@gmail.com>.
Several things:
1> Please don’t use add-unknown…. It’s fine for prototyping, but guesses field definitions.
2> the solrocnfig appears to be malformed, I’m surprised it fires up at all. This never terminates for instance: <updateHandler class="solr.DirectUpdateHandler2”>
3> Have you tried the HtmlStripCharFilterFactory and/or HTMLStripFieldUpdateProcessorFactory to remove the markup>? That would be in the schema. Another reason I don’t like “field guessing”, it makes treating fields specially difficult.
4> A ScriptUpdateProcessor might be a better way to do some of the transformations if regexes don’t prove to be flexible enough.
What I’d do is start over and do exactly one thing at a time. This looks like the situation I’ve found myself in far too often, after a while I have accumulated enough changes that I’m shooting myself in the foot.
Best,
Erick
> On Feb 21, 2019, at 10:11 AM, Demian Katz <de...@villanova.edu> wrote:
>
> updateHandler