Excuse me,I read the book and have a question.I'm not sure if there
is a bug in mdbroker.c?
In method s_broker_purge,it assumes that the worker in waiting list is
ordered by expiry.But when broker received hearbeat msg from worker,
it only updates worker's expiry. Maybe It breaks the order of waiting
list.
For example,the broker receives reday msg from worker A and B,then it
appends A,B to wating list.After a while B breaks down, and A sends
heartbeat msg to broker. When broker receives A's heartbeat msg,it
updates A's expiry. Now A's expiry is more recently than B.
Is that a bug? Or I have made a mistake. Thank you very much.
--
Department of Computer Science & Technology, Nanjing University
address:306, MengMinwei Building, Hankou Road 22, Nanjing University
Nanjing 210093, P.R.China
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