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From yosefarr <yosef.ar...@gmail.com>
Subject Re: ZooKeeper Limitation
Date Thu, 11 Aug 2011 21:16:59 GMT
what will work, how much maximum childs in a single node

On Fri, Aug 12, 2011 at 12:07 AM, Ted Dunning [via zookeeper-user] <
ml-node+6678116-543095410-343064@n2.nabble.com> wrote:

> 1M byte is the limit.
>
> You need to put multiple levels of directory in there.  500,000 znodes in a
>
> single directory won't work.
>
> On Thu, Aug 11, 2011 at 1:33 PM, yosefarr <[hidden email]<http://user/SendEmail.jtp?type=node&node=6678116&i=0>>
> wrote:
>
> > Thanks you for your replay,
> > What do you mean that there is limit on data calls to ZK?what is the
> limit?
> > We will have  too many direct childrens for a znode:
> >  /znode
> >      /child-1
> >      /child-2
> >      ........
> >      /child-n
> > when "n" can be 500000 or more
> > in this case if i run getChildren("/znode") ,does this call will fail?
> > or getData("/znode/child-n") will fail?
> >
> > Thanks
> > Yosef.
> >
> >
> > On Thu, Aug 11, 2011 at 8:32 PM, Mahadev Konar-4 [via zookeeper-user] <
> > [hidden email] <http://user/SendEmail.jtp?type=node&node=6678116&i=1>>
> wrote:
> >
> > > Yosef,
> > >  There isnt a limit on the number of ZK node numbers directly. We do
> > > have a limit on data calls to ZK. So in your case if you have too many
> > > direct children of a single znode (say millions), the getChildren
> > > calls return an error. I'd advise against having too many direct
> > > chidlren for a znode. Bucketing the users might make sense for you if
> > > you have too many users.
> > >
> > > thanks
> > > mahadev
> > >
> > > On Thu, Aug 11, 2011 at 2:19 AM, yosefarr <[hidden email]<
> > http://user/SendEmail.jtp?type=node&node=6677260&i=0>>
> > > wrote:
> > >
> > > > Hi,
> > > > If i want to save users that connect to my system as zookeeper nodes
> > and
> > > > each user has some proprties - connection id, user name and etc:
> > > > i need to know if there is a Limitation on ZooKeeper nodes numbers?
> > > >
> > > > /server1
> > > >      /user-1
> > > >      /user-2
> > > >      ........
> > > >      /user-n
> > > >
> > > > Thanks,
> > > > Yosef.
> > > >
> > > > --
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> > >
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