A quick and simple way to execute a command on a subset or all servers within your enterprise. The current version will only support Linux and is a WIP, the BETA version is not yet complete.
The ultimiate goal will be that you should be able to launch and get a reply to a given command such as "hostname"
on all machines in your enterprise with sub-second response times. Regardless of the number of servers....
(Dependant on the runtime of the command being executed)
Each Server in your enterprise:
- has a small daemon running on it
Workflow:
1) Client or Administrator sends a message to a predefined JMS topic containing a command to be run
(topics & headers will be used to restrict which servers)
2) Remote Servers see JMS message, execute command
3) Remote Server sends JMS reply with output of command
4) Client saves output/rc to file/database
Design guidelines:
-----------------
Very small memory footprint:
Perl has been chosen for this reason, my first quick test showed only 4M/Memory for the server process
Good shell interaction and very fast startup time for the foker:
Perl interacts nicely with the Unix/Linux POSIX layer
Ability to restart the "server" while subprocesses are in process (with zero impact):
This is the main reason why I chose to recursively call teh perl routine in a separate process.
Must work with any JMS provider:
Plan on using Stomp