What Can I Do If the Download Speed Is Slow After the yum makecache Command Is Executed?

Symptom

After the yum makecache command is executed to create a local cache, the download speed becomes slow.

Solution

Configure the EPEL source.

• Learn what is EPEL source.
• EPEL repository: https://repo.huaweicloud.com/epel/

Constraints

• This section applies only to the following regions: CN North-Beijing1, CN North-Beijing4, CN East-Shanghai1, CN East-Shanghai2, CN South-Guangzhou, and CN-Hong Kong.

• You have configured the intranet DNS server provided by HUAWEI CLOUD.

  To obtain the intranet DNS server address, see What Are Huawei Cloud Private DNS Server Addresses?

  For instructions about how to configure a DNS server, see How Do I Configure DNS for an ECS?.

Procedure

1. Run the following commands to back up configuration files:

   cp -a /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.backup

   mv /etc/yum.repos.d/epel-testing.repo /etc/yum.repos.d/epel-testing.repo.backup

2. Modify the epel.repo file.

   Run the following commands to uncomment the line starting with baseurl, comment out the lines starting with mirrorlist, and replace http://download.fedoraproject.org/pub in the file with https://repo.huaweicloud.com, respectively:

   sed -i "s/#baseurl/baseurl/g" /etc/yum.repos.d/epel.repo

   sed -i "s/metalink/#metalink/g" /etc/yum.repos.d/epel.repo

   sed -i "s@http://download.fedoraproject.org/pub@https://repo.huaweicloud.com@g" /etc/yum.repos.d/epel.repo

3. Run the yum update command to update the software list.
   

   • After you execute the yum makecache command, if the system displays the message "Another app is currently holding the yum lock", run the rm -rf /var/run/yum.pid command to delete the yum.pid file. Then, run the yum makecache command again to generate the cache.
   • After you execute the yum makecache command, if the system displays the message "Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again", run the following command to update the certificate and temporarily disable the EPEL image source:

     yum --disablerepo=epel -y update ca-certificates

   • If certain packages are unavailable, this issue may be caused by in-progress data synchronization. In this case, try again after a few hours.