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Re: [help-GIFT] GIFT Indexing

From: David Squire
Subject: Re: [help-GIFT] GIFT Indexing
Date: Mon, 21 Aug 2006 15:51:22 +0100
User-agent: Thunderbird (Macintosh/20060719)

Dayang Awg Iskandar wrote:
Hi all,

I installed GIFT without any errors and it worked fine with a small image collection.

I have indexed 169,685 images with GIFT and it took nearly two weeks to complete it. I think this is the first ever attempt to index GIFT with a large collection :)

Nope. Others have done 50,000 images and more - if that's large :)

My problem is that, the indexing process did complete, but there was no *.ADI file generated and the inverted files:
- InvertedFileFeatureDescription.db
- InvertedFile.db
- InvertedFileOffset.db

did not contain anything. Below is the last part of the indexing messages, and it seems that there was some failure:

********************************************************************************** Processing File: 169685 CAccessorElement(169685 /home/dayang/public_html/wikiCollection//gift-indexing-data/Wikipedia//99994_jpg.fts)--
before mergesort
MERGESORT MergeSize 12
../../libGIFTAcInvertedFile/include/merge_sort_streams.h:358 lToBeSorted false, after seekg(-2147483632)

This number is -2^31 (i.e. 1000 0000 0000 0000 0000 0000 0000 0000 in
two's complement notation, IIRC). It looks (as Henning suggests), as if
your OS and/or filesystem, like many, has an upper limit of 2Gb on file



Dr David McG. Squire, Senior Lecturer, on sabbatical in 2006
Caulfield School of Information Technology, Monash University, Australia
CRICOS Provider No. 00008C

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