I recently installed solr. The example index (found at apache-solr-#.#.#\example\solr) seems to work, and, once copied to my solr home directory, I am able to access it through the admin pages. However when I try to implement a new index by replacing the schema.xml content with (taken from here):
<?xml version="1.0" encoding="UTF-8" ?>
<schema name="example" version="1.2">
<types>
<fieldType name="string" class="solr.StrField" sortMissingLast="true" omitNorms="true" />
<fieldType name="int" class="solr.TrieIntField" precisionStep="0" omitNorms="true" positionIncrementGap="0" />
<fieldType name="date" class="solr.TrieDateField" omitNorms="true" precisionStep="0" positionIncrementGap="0" />
<fieldType name="text" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory" />
<filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1" />
<filter class="solr.LowerCaseFilterFactory" />
<filter class="solr.SnowballPorterFilterFactory" language="English" protected="protwords.txt" />
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory" />
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true" />
<filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" splitOnCaseChange="1" />
<filter class="solr.LowerCaseFilterFactory" />
<filter class="solr.SnowballPorterFilterFactory" language="English" protected="protwords.txt" />
</analyzer>
</fieldType>
</types>
<fields>
<field name="fileid" type="int" indexed="true" stored="true" required="true" />
<field name="doctext" type="text" indexed="true" stored="false" required="false" />
<field name="title" type="text" indexed="true" stored="false" required="false" />
<field name="datecreated" type="date" indexed="true" stored="false" />
</fields>
<uniqueKey>fileid</uniqueKey>
<defaultSearchField>doctext</defaultSearchField>
<solrQueryParser defaultOperator="OR" />
</schema>
I am receiving a configuration error, which seems to suggest that the uniqueKeyField must be implemented with a StrField type (something I find hard to believe is actually the case?)):
"HTTP Status 500 - Severe errors in solr configuration. ... org.apache.solr.common.SolrException: QueryElevationComponent requires the schema to have a uniqueKeyField implemented using StrField at org.apache.solr.handler.component.QueryElevationComponent.inform(QueryElevationComponent.java:157) at org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:508) at..."
My googling has turned up very little to help, so I am hoping there might be someone around here who might have come across this issue and/or have some ideas how to resolve it?
Thanks in advance for any advice, Bea.
Yes, at the moment QueryElevationComponent requires a string unique key. This limitation is documented in the Solr wiki.
Here's the issue in the project JIRA.
If you are still looking for an answer,
In schema.xml , include the following
<fieldType name="uuid" class="solr.UUIDField" indexed="true" />
<field name="id" type="uuid" indexed="true" stored="true" default="NEW" />
In elevate.xml, use this ID to map your search term to the best bet result .
<elevate>
<query text="foo bar">
<doc id="4602376f-9741-407b-896e-645ec3ead457" />
</query>
</elevate>
Here, 4602376f-9741-407b-896e-645ec3ead457
is the value in the "id" field of the best bet document. Wish, Solr allows us to specify any primary key field , say employeeid or productid for specifying in the elevate.xml
来源:https://stackoverflow.com/questions/3631823/solr-queryelevationcomponent-requires-strfield-uniquekeyfield-error