[BiO BB] BLAST problem - .index files

Samantha Fox bioinfosm at gmail.com
Thu Feb 16 17:17:19 EST 2006

Hi !
I got this wierd observation.. not really a problem or error, as BLAST runs
fine and gives me the output .. but something to know about.

So I format the nucleotide database as normal 'formatdb -i data -p F -o T'
.. and this makes all the relevant files.

However, I noticed that after some BLAST runs, a .index file and .index.___
also appear !! and the next BLAST runs give this sort of exception:

------------- EXCEPTION  -------------
MSG: Can't open cache file data.index: Invalid argument
STACK Bio::DB::Fasta::_open_index
STACK Bio::DB::Fasta::index_file
STACK Bio::DB::Fasta::new
STACK toplevel get_ortho.pl.all:43

Any BLAST experts here, who can help !

thanks ..
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