Building Kraken2 Databases Errors - bash

Question

Currently running a metagenomic analysis of transcriptome reads using kraken2. Currently running into issues installing the required databases
Buildind kraken2 database code:
kraken2-build --download-library archaea --db archaea_DB
kraken2-build --download-library viral --db viral_DB
kraken2-build --download-library bacteria --db bacteria_DB
kraken2-build --download-library human --db human_DB
kraken2-build --download-library fungi --db fungi_DB
kraken2-build --download-library protozoa --db protozoa_DB
Errors:
rsync: getaddrinfo: ftp.ncbi.nlm.nih.gov 873: Temporary failure in name resolution
rsync error: error in socket IO (code 10) at clientserver.c(138) [Receiver=3.2.6]
Error downloading assembly summary file for archaea, exiting.
rsync: getaddrinfo: ftp.ncbi.nlm.nih.gov 873: Temporary failure in name resolution
rsync error: error in socket IO (code 10) at clientserver.c(138) [Receiver=3.2.6]
Error downloading assembly summary file for viral, exiting.
rsync: getaddrinfo: ftp.ncbi.nlm.nih.gov 873: Temporary failure in name resolution
rsync error: error in socket IO (code 10) at clientserver.c(138) [Receiver=3.2.6]
Error downloading assembly summary file for bacteria, exiting.
rsync: getaddrinfo: ftp.ncbi.nlm.nih.gov 873: Temporary failure in name resolution
rsync error: error in socket IO (code 10) at clientserver.c(138) [Receiver=3.2.6]
Error downloading assembly summary file for human, exiting.
rsync: getaddrinfo: ftp.ncbi.nlm.nih.gov 873: Temporary failure in name resolution
rsync error: error in socket IO (code 10) at clientserver.c(138) [Receiver=3.2.6]
Error downloading assembly summary file for fungi, exiting.
rsync: getaddrinfo: ftp.ncbi.nlm.nih.gov 873: Temporary failure in name resolution
rsync error: error in socket IO (code 10) at clientserver.c(138) [Receiver=3.2.6]
Error downloading assembly summary file for protozoa, exiting.

Answer 1

Ok so some adjustments I made was that I had to manually change the source code files of kraken2 through my anaconda environment.
I don't recall exactly what the changes were (you can look them up yourselves), but to access the files you can run the conda info -a command to find the directory where your conda environments are located. For example: find $(conda info -a) -name "rsync_from_ncbi.pl".
Once Files are edited then we can do the kraken2 process. The Errors I had was actually issues with the connection with the server (don't know why, but that's how it worked). Just wait for like 10 minutes or more and run the code and it should work.
Step 1: create a directory for the database
mkdir database
Step 2: Download taxonomy data to the database
kraken2-build --download-taxonomy --db database
Step 3: Download microbial data for the database
kraken2-build --download-library bacteria --db database
Step 4: Once the data is loaded to the library, build the database
kraken2-build --build --db database
These should be all the commands needed for kraken2