Lesson 13

Date: 4/25/2018
High Performance Computing (part II: MPI)
Linux System Administration


Cluster VM node deployment
Exercise
  • Clone your n01 virtual machine into a new VM, n02. 
    virsh shutdown n01
virt-clone --connect=qemu:///system -o n01 -n n02 -f /home/hostadm/KVM/n02.img

  • Start n02 and login to its console: 
    virsh start n02
virsh console n02

    Change the host name for n02 in file /etc/hostname, then reboot
  • Start n01 
    virsh start n01

  • On the master VM, import SSH public key of n02: 
    ssh-keyscan -t rsa n02  >> /etc/ssh/ssh_known_hosts
  • Edit file /etc/exports and add n01 to the NFS clients for directory /NFS/home: 
    /NFS/home  n01(rw)
/NFS/home  n02(rw)
    Run command 
    exportfs -a

  • On both n01 and n02 nodes, import the SSH public keys of both the nodes: 
    ssh-keyscan -t rsa n01  >> /etc/ssh/ssh_known_hosts
ssh-keyscan -t rsa n02  >> /etc/ssh/ssh_known_hosts

  • From master try to SSH to n02 as user edward. It should allow SSH login without password authentication. Try also SSH from n02 to n01.




    • Take me to the Course Website