CDH5 offline Parcel failed to install single node cluster

problem description

when installing using offline Parcel, it is always stuck in the installation Install Agents step.

the environmental background of the problems and what methods you have tried

the local Parcel-repo file has been checked and the sha file has been renamed. The
interface displays as follows:
refreshing package metadata.
installing cloudera-manager-agent packages.

related codes

[root@node1 parcel-repo]-sharp pwd
/opt/cloudera/parcel-repo
[root@node1 parcel-repo]-sharp ll
 2070192
-rw-r--r--. 1 root root 2119711889 7  14 18:42 CDH-5.15.0-1.cdh5.15.0.p0.21-el7.parcel
-rw-r--r--. 1 root root         41 7  14 18:42 CDH-5.15.0-1.cdh5.15.0.p0.21-el7.parcel.sha
-rw-r-----. 1 root root      81047 7  14 19:21 CDH-5.15.0-1.cdh5.15.0.p0.21-el7.parcel.torrent
-rw-r--r--. 1 root root      74072 7  14 18:42 manifest.json

what result do you expect? What is the error message actually seen?

I don"t expect to download online, but the details show that yum is used to install and update cloudera-manager-agent.

-sharp yum -y install psmisc MySQL-python at bc bind-libs bind-utils cups-client cups-libs cyrus-sasl-gssapi cyrus-sasl-plain ed fuse fuse-libs httpd httpd-tools keyutils-libs-devel krb5-devel libcom_err-devel libselinux-devel libsepol-devel libverto-devel mailcap noarch mailx mod_ssl openssl-devel pcre-devel postgresql-libs python-psycopg2 redhat-lsb-core redhat-lsb-submod-security x86_64 spax time zlib-devel -sharp chmod +x /etc/rc.d/rc.local -sharp echo "echo 0 > /proc/sys/vm/swappiness" >>/etc/rc.d/rc.local -sharp echo "echo never > /sys/kernel/mm/transparent_hugepage/defrag" >>/etc/rc.d/rc.local -sharp echo 0 > /proc/sys/vm/swappiness -sharp echo never > /sys/kernel/mm/transparent_hugepage/defrag -sharp yum -y install rpcbind -sharp systemctl start rpcbind -sharp echo "systemctl start rpcbind" >> /etc/rc.d/rc.local