It seems odd to me that if you are using the CFS format, why you would have the .fdt, .frq and .prx files in addition to the .cfs files. My understanding is all files (except deletable and segment) get put inside of the CFS file. Looking at my indices, I only have the CFS file. Are you optimizing your indices after you are done indexing? Are you turning off compound file format?

Can you try a smaller sample in a clean directory and see what size it is (so that it doesn't take as long to index)?

Rob Staveley (Tom) wrote:
Is there anything I can learn from the index directory's file listing?

Running this nasty little BASH one-liner...

$ for i in `ls * | perl -nle 'if (/^.+(\..+)/) {print $1;}' | sort |
uniq`;do ls -l *$i | awk '{SUM = SUM + $5} END {if (SUM > 1e10) {print
"'$i': ", SUM}}'; done
... I see....

        .cfs:  1.23155e+10
        .fdt:  5.06108e+10
        .frq:  1.27472e+10
        .prx:  1.3444e+10

That means I have 98 GB of files, with: 51 GB devoted to field data (.fdt), 13 BG devoted to term positions (.prx)
        13 BG devoted to term frequencies (.frq)
        12 BG devoted to compound files for the field index (.cfs)

Does that seem reasonable, bearing in mind I have only indexed 4.3 million
Lucene documents? That's 22.8 kB per Lucene document, and apart from a 300
character synopsis the fields are all much less than 100 characters long,
and yet this suggests that the index is providing 600 bytes per field.


--

Grant Ingersoll Sr. Software Engineer Center for Natural Language Processing Syracuse University School of Information Studies 335 Hinds Hall Syracuse, NY 13244 http://www.cnlp.org Voice: 315-443-5484 Fax: 315-443-6886

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