[daisy] Stack Overflow on Search

[Karel Vervaeke]

I just reproduced the problem, the exception occurs on the wiki side.

For reproducing I used the attached file.  When running daisy-js -f
createdocs.js, 10000 documents are created.  Each document contains 100
random words (actually 3 random syllables concatenated), except for the
50th word which is always the word 'frequent'.

Searching for the word 'frequent' using fulltext search worked for a
very long (last time it worked, there were 12210 results, then some time
later the occurred).  I'll try to find out what goes wrong and let you
know what can be done.

regards,
Karel

On Thu, 2008-01-31 at 11:20 -0800, Jill Giboney wrote:
> We are experiencing an error when searching a site that has 17,000
> documents. Most searches work fine on that site, but if a term is used
> in 5,000 or 6,000 documents, we get the following error:
> 
>  
> 
> HTTP ERROR: 500
> 
> INTERNAL_SERVER_ERROR
> 
> RequestURI=/UG-Help/search
> 
>  
> 
> Caused by:
> 
> java.lang.StackOverflowError
> 
>             at sun.misc.FloatingDecimal.readJavaFormatString(Unknown
> Source)
> 
>             at java.lang.Double.parseDouble(Unknown Source)
> 
>             at
> org.apache.xpath.objects.XString.toDouble(XString.java:133)
> 
>             at org.apache.xpath.objects.XString.num(XString.java:102)
> 
>             at org.apache.xpath.operations.Plus.operate(Plus.java:46)
> 
>             at
> org.apache.xpath.operations.Operation.execute(Operation.java:110)
> 
>             at
> org.apache.xpath.objects.XRTreeFragSelectWrapper.execute(XRTreeFragSelectWrapper.java:67)
> 
>             at org.apache.xpath.XPath.execute(XPath.java:335)
> 
>             at
> org.apache.xalan.templates.ElemWithParam.getValue(ElemWithParam.java:201)
> 
>             at
> org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:224)
> 
>             at
> org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
> 
>             at
> org.apache.xalan.templates.ElemIf.execute(ElemIf.java:160)
> 
>             at
> org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
> 
>             at
> org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:392)
> 
>             at
> org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:246)
> 
>  
> 
> These three lines then repeat a number of times:
> 
>  
> 
>             at
> org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:246)
> 
>             at
> org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
> 
>             at
> org.apache.xalan.templates.ElemIf.execute(ElemIf.java:160)
> 
>             at
> org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2411)
> 
>             at
> org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:392)
> 
>  
> 
> I added the following statements to myconfig.xml and tried cache sizes
> of 30,000, 60,000 and 100,000, but still get the error.
> 
>  
> 
> <target path="/daisy/repository/documentcache"> 
> <configuration> 
> <documentCacheMaxSize>30000</documentCacheMaxSize> 
> <availableVariantsCacheMaxSize>30000</availableVariantsCacheMaxSize> 
> </configuration> 
> </target>
> 
>  
> 
> Thanks for your help!
> 
>  
> 
> Jill Giboney
> 
> Arcadia Solutions LLC
> 
> 
> _______________________________________________
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> mail to: daisy at lists.cocoondev.org
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