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From Sznajder ForMailingList <bs4mailingl...@gmail.com>
Subject Re: Multiples queue consumers in a quorum reduces the throughput
Date Sun, 24 Nov 2013 18:40:40 GMT
Please ignore this duplicate mail

Benjamin


On Sun, Nov 24, 2013 at 6:51 PM, Sznajder ForMailingList <
bs4mailinglist@gmail.com> wrote:

> Hi
>
> A parallel problem to the problem I described earlier in this list is a
> following:
>
> The parameters are still the same:
>
> - I have a producer who produces items in the queue (integer). The
> producer adds some items when the queue is half of its initial size.
>
> - The consumer just picks the item and write to a log file and goes to
> sleep a while...
>
>
> When I define a chorum of 2 machines - One producer, and one consumer, I
> consume 1320 items in 5 minutes.
>
> When I define a quorum of 3 machines - One producer and two consumers, I
> consume 2693 items in 5 minutes (expected!)
>
> When I define a quorum of 4 machines - One producer and three consumers, I
> suddenly, consume only 1975 items in 5 minutes!! (Even less than the
> precedent configuration!!)
>
> I would thank you for your help/. This issue is relatively urgent for me..
>
> Best regards
> Benjamin
>

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