[htdig] Increasing max_head_length doesn't work?

[Simon Blandford]

I installed the CVS version of Htdig on 15-Oct-2004. I have a batch of 
PDF files I am indexing that are about 30kB each. Everything seems to 
work OK except if I search for a phrase that I know is right at the end 
of one of the documents I get the message "None of the search words were 
found in the top of this document." for each of the hits. I have 
increased max_head_length to 100kB, 1MB, 10MB but whatever I do it just 
won't work. I have also tried reducing max_head_length down to a low 
value and searching for phases in the middle of a document to check it 
is doing anything at all. It is.

I don't want to ever have a situation where the excerpt can not be 
displayed, the documents are all small enough for that not to be an 
issue. I also don't want to see the top of the document instead of an 
excerpt. For this application I am working on, excerpts are very important.

The relavent htdig.conf settings are...
max_head_length:        10000000
max_doc_size:           10000000
excerpt_length: 800
max_excerpts: 3
no_excerpt_show_top:    false
excerpt_show_top:       false
Any help much appreciated.
Thanks,
SimonB
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