Pushing some sort of confirmation out to a single master would be the easiest thing to do (using ssh passwordless auth), but this would actually be neat situation to implement some sort of distributed confirmation algorithm that doesn't have a single point of failure - that being the connection between your master and any of the servers you'd like to keep tabs on.

If you have some time to think about the solution and a lot more time to code it, POE might be the answer, but in reality a simple master daemon listener solution would not take long to craft from the many Perl daemon examples out there.

You could use a simple scheme where there is the master listener waiting for "DONE_SUCCESS" from all respective servers. On hearing "DONE_SUCCESS", the master daemon would send an ACK back to the server in question (requires a listener on that end, too). The server trying to check in would continue to send "DONE_SUCCESS" messages until it finally hears the "ACK" from the master.

If you're interested in a solution like that, let me know and I'll go over it in more detail.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.