Has anyone manage to use multiple databases?

[christopher047]

In the manual it mentions that databases should be built with the same TaxDB file. Can't quite get this to work, "Can't cat ... "

What is the best strategy here? Download the taxonomy krakenuniq-download db . taxonomy. Transfer the resultant files to each folder(db) I would like to create: human, prokaryote, viral, .. Then run each db build without the the krakenuniq-download db . taxonomy command

For example to build human: krakenuniq-download --db <$HUMAN> refseq/vertebrate_mammalian/Chromosome/species_taxid=9606 krakebuniq-build --db <$HUMAN> --kmer-len 31 --threads 32

The goal is to run krakenuniq HUMAN PROK VIRAL on some human sweat samples. Thanks for any help :) Chris

[hvanphucs]

I am also concerned about the same issue but have not received any help from anyone. To avoid errors encountered due to the difference in the taxDB file, I copy/paste the same taxDB for each smaller database cluster and no longer see this error. This way I can combine the MiniKraken8G and the custom databases