[zeromq-dev] Is there a bug in mdbroker.c?
雷达
leida.njucs at gmail.com
Sat Sep 7 16:35:51 CEST 2013
Thank you for the reply,I will try it.
在 2013年9月7日星期六,Pieter Hintjens 写道:
> You're right. When we get a heartbeat from a worker we should also
> move it to the head of the list. I think the code should call
> s_worker_waiting (worker); instead of directly resetting the expiry
> time. I don't have time to test that change right now -- would you
> like to?
>
> -Pieter
>
> On Sat, Sep 7, 2013 at 8:44 AM, 雷达 <leida.njucs at gmail.com <javascript:;>>
> wrote:
> > 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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--
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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