问题1：

rsync_from_ncbi.pl: unexpected FTP path (new server?) for ...

参考：https://github.com/DerrickWood/kraken2/issues/226

修改 vim /home/bioinfo/miniconda2/envs/kraken2/libexec/rsync_from_ncbi.pl
将 46 行 ftp 改为 https

 46   # if (! ($full_path =~ s#^ftp://${qm_server}${qm_server_path}/##)) {
 46   if (! ($full_path =~ s#^https://${qm_server}${qm_server_path}/##)) {
 47     die "$PROG: unexpected FTP path (new server?) for $ftp_path\n";
 48   }