Freaks City

Data Classification in Containerized Environments Container filesystems are inherently ephemeral. When a container crashes or is deleted, any changes made to its local storage are lost. To manage data effectively, we generally categorize container data into three types: Configuration Data: Initial settings or files required at startup. Transie ...

Note: The setup with CentOS 8 (kernel 4.18) is not viable. Switch the client and MDS to Ubuntu (tested successfully on Ubuntu 18.04 with kernel 4.15) while keeping the setup steps the same. With the rapid development of networking and parallel computing, file I/O has become a bottleneck for overall system performence. Traditional NFS versions f ...

RPCbind Service Failure on CentOS 7.4 Issue Summary After rebooting a virtual machine, NFS mounts configured in /etc/rc.local failed to execute properly. Root Cause Analysis The root cause was that the rpcbind service failed to start, which prevented NFS mounts from functioning. Attempting to restart the service reuslted in the following error: ...

NFS Server Setup Installing Required Packages yum install -y nfs-utils Configuring the Export File Edit the exports configuration file to define which dierctories to share: vim /etc/exports Add the following line to share /data/shared with the specified network: /data/shared 10.0.0.0/24(rw,sync,fsid=0) Configuration options explained: Opt ...

Configuring Local and Remote YUM Repositories Setting Up a Local Repository Using File Access Create a repository definition file pointing to a ISO mount point: cd /etc/yum.repos.d/ cat > local-repo.repo <<EOF [local-repo] name=Local Repository baseurl=file:///iso_mount enabled=1 gpgcheck=0 EOF mkdir -p /iso_mount mount /dev/cdrom /is ...

Configuring Yum Software RepositoriesYUM (Yellowdog Updater Modified) is a package management utility that simplifies the installation, updating, and removal of software packages on Linux distributions. By resolving dependencies automatically, it alleviates the need for manual administrative intervention when managing RPM packages. In environme ...