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The following is a set of useful cluster commands that are available on
the cluster lab. They can be run from the master node in the cluster.
- cchk Check the machines on the cluster by pinging the
machines. Quick way to check if any machines are down.
- cdate Check the current time and date on each node of the
cluster. The master node is a NTP time server (and also a client to
another trusted source of accurate time). All the other nodes in the
cluster are NTP time service clients of the master node.
- cmips Check the total computing power of the cluster. The
computing power is reported in MIPS (using the bogoMIPS value reported by the
- cfree Reports memory usage across the cluster.
- cdisks Reports /tmp scratch disk space usage across the cluster.
- ctemp Reports CPU temperatures across the cluster. May not be
available on all clusters.