Terrier Core

Line 713 & 714 of LexiconBuilder should close lis1 not lis2. However, this method normally lexicon in pairs, while normally N lexicon are merged at once (an obscure property controls this). I'm not sure this is the cause of the issue yet.

Tried fixing the wring close in the lexicon builder, no joy. Failed move only occurs which inverted indexing (i.e. -i or -i -v). Still fails when only a single lexicon is around to merge.

data.tmplexicon.fsomapfile is closed correctly. However, there remain 2 open RW- handles on data.lexicon.fsomapfile around line 381 of InvertedIndexBuilder. This causes FSOMapFileLexicion.deleteMapFileLexicon to not delete data.lexicon.fsomapfile and FSOMapFileLexicion.renameMapFileLexicon to fail.

Test case: Windows 7 64bit, trec_terrier.bat -i -v (building from existing direct file)

Found problem. line 188 in InvertedIndexBuilder.java:
replace

int numberOfUniqueTerms = index.getLexicon().numberOfEntries();

with

int numberOfUniqueTerms = index.getCollectionStatistics().getNumberOfUniqueTerms();

Fix committed to trunk.