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Top Forums UNIX for Beginners Questions & Answers Proliferate commands across nodes? Post 303022632 by MuntyScrunt on Tuesday 4th of September 2018 03:41:42 PM
Old 09-04-2018
Proliferate commands across nodes?

Hi folks.

I've been a developer for far too many years, but know very little of unix. I have setup a very inexpensive cluster of 6 raspberry pi nodes so I can play around with multi node programming. This is only for fun, but I want to learn properly, else what's the point?!

Setup can be a bit of a ball ache with proliferating code and commands.

Could you please suggest software that will allow me to send commands to node 1 and have that proliferated to the other 5? I have searched for this and found a few possibilities, most do a lot more than I need and the one that looks perfect (fabric) doesn't install in Raspbian, no idea why.

I'm sure I could write a bash with ssh and accomplish the basics, but I like the idea of asynchronous replies which I think is going to be a depth to far.

Any suggestions welcome, and if you have an opinion of one thing over another please let me know why.

Many thanks.
 

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clinfo(1M)						  System Administration Commands						clinfo(1M)

NAME
clinfo - display cluster information SYNOPSIS
clinfo [-nh] DESCRIPTION
The clinfo command displays cluster configuration information about the node from which the command is executed. Without arguments, clinfo returns an exit status of 0 if the node is configured and booted as part of a cluster. Otherwise, clinfo returns an exit status of 1. OPTIONS
The following options are supported: -h Displays the highest node number allowed to be configured. This is different from the maximum number of nodes supported in a given cluster. The current highest configured node number can change immediately after the command returns since new nodes can be dynam- ically added to a running cluster. For example, clinfo -h might return 64, meaning that the highest number you can use to identify a node is 64. See the Sun Cluster 3.0 System Administration Guide for a description of utilities you can use to determine the number of nodes in a cluster. -n Prints the number of the node from which clinfo is executed. EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 An error occurred. This is usually because the node is not configured or booted as part of a cluster. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) SunOS 5.10 12 Mar 2002 clinfo(1M)
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