Something funny in the text extraction of PDFs [SEC=UNCLASSIFIED]

[Ro...@ipaustralia.gov.au]

Hello

I am in the middle of loading many, many documents into my jackrabbit 2.1 
instance, and production support have complained to me about constant 
warnings being generated in the logs, 

org.apache.pdfbox.cos.COSDocument - java.lang.ClassCastException
Oct 19 13:13:40 localhost java.lang.ClassCastException

It might be producing a number of these warnings per PDF document, because 
they are popping out at about 10/second.

I have 2 concurrent processes running adding documents.  There is a 
mixture of text-based documents and image only PDFs.

Any insight?  Should I just advise production support to tune the log4j 
properties?

Thanks

Ross.

Re: Something funny in the text extraction of PDFs [SEC=UNCLASSIFIED]

[Jukka Zitting <ju...@gmail.com>]

Hi,

On Tue, Oct 19, 2010 at 9:33 AM, Ard Schrijvers
<a....@onehippo.com> wrote:
> On Tue, Oct 19, 2010 at 7:11 AM,  <Ro...@ipaustralia.gov.au> wrote:
>> org.apache.pdfbox.cos.COSDocument - java.lang.ClassCastException
>> Oct 19 13:13:40 localhost java.lang.ClassCastException
>
> Think you might better want to (cross) post this question to pdfbox as
> Jackrabbit uses pdfbox for pdf extraction, and also the exception
> points to pdfbox,

Exactly. PDFBox is having problems extracting text from some of your
documents. In such cases Jackrabbit simply logs the problem as a
warning (so you know about it) and indexes the document as if it were
empty.

In general these warnings aren't too harmful, but it would be good if
you could post the full stack trace to the PDFBox issue tracker at
https://issues.apache.org/jira/browse/PDFBOX, preferably with an
example PDF that causes the problem. That way the PDFBox team will
have a chance to fix the problem and sooner or later also Jackrabbit
will be able to better index your documents.

BR,

Jukka Zitting

Re: Something funny in the text extraction of PDFs [SEC=UNCLASSIFIED]

[Ard Schrijvers <a....@onehippo.com>]

On Tue, Oct 19, 2010 at 7:11 AM,  <Ro...@ipaustralia.gov.au> wrote:
> Hello
>
> I am in the middle of loading many, many documents into my jackrabbit 2.1
> instance, and production support have complained to me about constant
> warnings being generated in the logs,
>
> org.apache.pdfbox.cos.COSDocument - java.lang.ClassCastException
> Oct 19 13:13:40 localhost java.lang.ClassCastException
>
> It might be producing a number of these warnings per PDF document, because
> they are popping out at about 10/second.
>
> I have 2 concurrent processes running adding documents.  There is a mixture
> of text-based documents and image only PDFs.
>
> Any insight?  Should I just advise production support to tune the log4j
> properties?

Think you might better want to (cross) post this question to pdfbox as
Jackrabbit uses pdfbox for pdf extraction, and also the exception
points to pdfbox,

http://pdfbox.apache.org/userguide/cookbook.html

Regards Ard

>
> Thanks
>
> Ross.
>
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