Installation & Administrator Guide

• Introduction
• Required and Recommended Components
• Initial Installation of Scyld ClusterWare
  • Download the ClusterWare install script and related files
  • Execute the ClusterWare install script
  • Configure additional cluster administrators
• Common Additional Configuration and Software
  • Configure Hostname
  • Choosing An Alternate Database
    • Database Differences
    • Switching Between Databases
  • Couchbase auto-failover
  • Configure authentication
  • Disable/Enable Chain Booting
  • Install optional ClusterWare software
  • Job Schedulers
    • Slurm
    • PBS TORQUE
    • OpenPBS
  • Kubernetes
  • Firewall Configuration
  • Install OpenMPI, MPICH, and/or MVAPICH
  • Configure IP Forwarding
  • Install Additional Tools
• Node Images and Boot Configurations
  • Compute Nodes with SSH banner
  • Compute Node Fields
  • Compute Nodes IPMI access
  • Boot Configurations
  • Creating PXEboot Images
  • Recreating the Default Image
  • Modifying PXEboot Images
    • Updating the kernel in an image
  • Capturing and Importing PXEboot Images
  • Deleting unused images and boot configurations
  • Copying boot configurations between head nodes
  • Wrapper scripts
    • Repos and Distros
    • Using Archived Releases
    • Using ISO Releases
    • Installing Software With Subscriptions
  • Adding 3rd-party software
• Using Kickstart
  • Uploading ISO Images
  • Kickstarting Installations
  • Kickstart Files
• Using RHCOS
• Booting Diskful Compute Nodes
• Interacting with Compute Nodes
  • Node Creation with Known MAC address(es)
  • Node Creation with Unknown MAC address(es)
  • Changing IP addresses
  • Replacing Failed Nodes
  • Node Name Resolution
  • Executing Commands
  • Node Attributes
  • Node Names and Pools
  • Attribute Groups and Dynamic Groups
• Securing the Cluster
  • Authentication
  • Changing the Database Password
    • Couchbase
    • etcd
  • Compute Node Remote Access
  • Compute Node Host Keys
  • Encrypting Communications
  • SELinux
    • SELinux On Compute Nodes
    • SELinux On Head Nodes
    • MLS Policy On Head Nodes
• Monitoring the Status of the Cluster
  • scyld-nodectl status
  • Chronograf GUI
• Graphical Interface
• Managing Multiple Head Nodes
  • Adding A Head Node
    • Join a non-ClusterWare server using scyld-install
    • Join a non-ClusterWare server using curl
    • Join a ClusterWare head node using scyld-install
    • After a join
  • Removing A Head Node
    • Configuring Support for Database Failover
    • Shared Storage and Peer Downloads
  • Booting With Multiple Head Nodes
  • Switching To Alternative ClusterWare Database
• Managing Node Failures
  • Head Node Failure
• Managing Large Clusters
  • Improve scaling of node booting
• Backup and Restore
  • Backup and Restore of ClusterWare
  • Backup and Restore of the Database
• Updating Scyld ClusterWare
• Troubleshooting ClusterWare
  • Failing PXE Network Boot
  • Kickstart Failing
  • Head Node Filesystem Is 100% Full
    • Verify excessive storage is related to ClusterWare
    • Remove unnecessary objects from the ClusterWare database
    • Investigate InfluxDB retention of Telegraf data
    • Remove unnecessary PXEboot images, repos
    • Otherwise
  • etcd Database Exceeds Size Limit
  • Failing To Boot From Local Storage
  • IP Forwarding
  • Soft Power Control Failures
  • Head Nodes Disagree About Compute Node State
  • Finding Further Information
  • Contacting Penguin Computing Support
• IPMI
  • IPMITool
• Services, Ports, Protocols
  • Apache
  • Couchbase
  • DHCP
  • etcd
  • iSCSI
  • NFS Ganesha
  • OpenSSH
  • Telegraf / InfluxDB
  • TFTP