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From Camille Fournier <cami...@apache.org>
Subject Re: Reelection takes a long time
Date Mon, 23 Nov 2015 14:29:44 GMT
What does "a bit too long" mean here? 10 seconds? Two minutes? Longer,
shorter?

Any snippets from the log during election would also be helpful.

Thanks
C
On Nov 23, 2015 7:49 AM, "Jens Rantil" <jens.rantil@tink.se> wrote:

> Hi,
>
> *Problem:* We are running a Zookeeper ensemble that takes a bit too long
> time before a new master is elected when the old one is brought down.
>
> *Question:* Which configuration settings do I need to change to decrease
> the time before a reelection occurs? tickTime and syncLimit?
>
> *Additionals:* The relevant (I think!) configuration we are running is:
>
> # The number of milliseconds of each tick
> tickTime=2000
> # The number of ticks that the initial
> # synchronization phase can take
> initLimit=60
> # The number of ticks that can pass between
> # sending a request and getting an acknowledgement
> syncLimit=30
>
> I have previously increases the limits somewhat to accomodate for zookeeper
> nodes not being able to come up due to too large snapshot. This could
> definitely be the reason why reelection takes longer time.
>
> Any input appreciated.
>
> Cheers,
> Jens
>
> --
> Jens Rantil
> Backend engineer
> Tink AB
>
> Email: jens.rantil@tink.se
> Phone: +46 708 84 18 32
> Web: www.tink.se
>
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