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DerrickWood / kraken2

The second version of the Kraken taxonomic sequence classification system
MIT License
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what is the size of 'bacteria' library ? #294

Open ctlshcxy opened 4 years ago

ctlshcxy commented 4 years ago

Hi, I have downloaded 'bacteria' library by typing "kraken2-build --download-library bacteria --db $DBNAME". and I found it's pretty large in size, around 81GB. I'm not sure if that's OK and how much RAM will it need to build the database and running classification?

jenniferlu717 commented 3 years ago

That is expected. The library/bacteria/ folder contains all of the ncbi bacterial complete genome sequences.

Last year, when I built a database from 73GB of FASTA files, the database itself was about 40GB (so 40GB of RAM)