[SOLR-1404] Random failures with highlighting

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4
• Fix Version/s: 1.4
• Component/s: highlighter, Schema and Analysis
• Assignee: Unassigned
• Reporter: Anders Melchiorsen
• Created: 02/Sep/09 15:45
• Updated: 10/Nov/09 15:52
• Resolved: 13/Sep/09 20:11

Description

With a recent Solr nightly, we started getting errors when highlighting.

I have not been able to reduce our real setup to a minimal one that is failing, but the same error seems to pop up with the configuration below. Note that the QUERY will mostly fail, but it will work sometimes. Notably, after running "java -jar start.jar", the QUERY will work the first time, but then start failing for a while. Seems that something is not being reset properly.

The example uses the deprecated HTMLStripWhitespaceTokenizerFactory but the problem apparently also exists with other tokenizers; I was just unable to create a minimal example with other configurations.

SCHEMA

<?xml version="1.0" encoding="UTF-8" ?>

<schema name="example" version="1.2">

<types>
<fieldType name="string" class="solr.StrField" />

<fieldtype name="testtype" class="solr.TextField">
<analyzer>
<tokenizer class="solr.HTMLStripWhitespaceTokenizerFactory" />
</analyzer>
</fieldtype>
</types>

<fields>
<field name="id" type="string" indexed="true" stored="false" />
<field name="test" type="testtype" indexed="false" stored="true" />
</fields>

<uniqueKey>id</uniqueKey>

</schema>

INDEX

URL=http://localhost:8983/solr/update

curl $URL --data-binary '<add><doc><field name="id">1</field><field name="test">test</field></doc></add>' -H 'Content-type:text/xml; charset=utf-8'
curl $URL --data-binary '<commit/>' -H 'Content-type:text/xml; charset=utf-8'

QUERY

curl 'http://localhost:8983/solr/select/?hl.fl=test&hl=true&q=id:1'

ERROR

org.apache.lucene.search.highlight.InvalidTokenOffsetsException: Token test exceeds length of provided text sized 4

org.apache.solr.common.SolrException: org.apache.lucene.search.highlight.InvalidTokenOffsetsException: Token test exceeds length of provided text sized 4
at org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:328)
at org.apache.solr.handler.component.HighlightComponent.process(HighlightComponent.java:89)
at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:195)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1299)
at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:338)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:241)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:285)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:821)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:208)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
Caused by: org.apache.lucene.search.highlight.InvalidTokenOffsetsException: Token test exceeds length of provided text sized 4
at org.apache.lucene.search.highlight.Highlighter.getBestTextFragments(Highlighter.java:254)
at org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:321)
... 23 more

Issue Links

• is related to: SOLR-1423 Lucene 2.9 RC4 may need some changes in Solr Analyzers using CharStream & others