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ClusterSSH is a tool to manage simultaneous interactive sessions across multiple SSH-accessible hosts. It opens one master terminal and many child terminal windows (or tabs), sending the same keystrokes to all clients while allowing isolated input per host. This is useful when orchestrating repetitive tasks—such as rolling updates or diagnosing distributed systems—without copying and pasting into each window. The interface supports splitting windows, delayed input modes, and host groupings...
Ballast is a tool for balancing user load across SSH servers that supports user-specific policies as well as traditional policies based on metrics such as CPU load. It includes a simple client, a lightweight data server, and a data collection agent.
This is now also available here github.com/sharkcz/collectl.git
Collectl is a light-weight performance monitoring tool capable of reporting interactively as well as logging to disk. It reports statistics on cpu, disk, infiniband, lustre, memory, network, nfs, process, quadrics, slabs and more in easy to read format.
ClusterSSH controls a number of xterm windows via a single graphical console window to allow commands to be interactively run on multiple servers over an ssh connection.
autoswap is a tool (written in Perl) that allows for swap space to be created automatically based upon the amount of RAM in the machine or configuration. Useful for cluster configuration.
xCAT proper is now open source software! Please visit the xCAT site for more information on this incredible cluster administration tool: http://xcat.sourceforge.net/
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SystemInstaller is a tool to install a system with any Linux distribution. It works hand-in-hand with SystemImager and SystemConfigurator to build a cluster.
dsh is a program which runs a single command on multiple computers at the same time. It was designed as a cluster tool for beowulf-style supercomputers.