[zeromq-dev] weird block

[Andrew Hume]

god i hate distributed programming!

i have a program X receiving messages.
it forwards those messages out to a set of worker processes for processing.
X sends out the messages via a PUSH; the workers PULL the messages.
i set the high water mark on the PUSH socket in X.

so my controller program broadcasts out a 'quit' message to everyone
and all of X's workers quit. now X also got a 'quit' message but now
it never sees it because it is blocked in teh send of the messages it has.
and that queue will never unblock because now there are no workers
to eat from teh queue (which would allow the send to finish
and thus get back to the poll where it could see the quit message).

is there a recommended way around this?

	andrew

------------------
Andrew Hume  (best -> Telework) +1 623-551-2845
andrew at research.att.com  (Work) +1 973-236-2014
AT&T Labs - Research; member of USENIX and LOPSA




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