Ted, thank you very much for your reply. I think A will exit and so ZK can
help ..

Not sure if any further link can help on how to program for such scenario...
:-)


2010/1/20 Ted Dunning <ted.dunn...@gmail.com>

> yes.
>
> But there is some danger that A will maintain a connection to ZK and thus
> retain the master status without being able to act as such.
>
> If you can guarantee that A will exit or go catatonic if it is unable to
> continue, then ZK should solve your problem.  This failure scenario is
> common, but with a database, I would wonder if there are others.
>
> On Tue, Jan 19, 2010 at 11:30 PM, xeoshow <xeos...@gmail.com> wrote:
>
> >      I am wondering can this monitor part be replaced by zookeeper, using
> > zookeeper watch or something else?
> >
>
>
>
> --
> Ted Dunning, CTO
> DeepDyve
>

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