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Zookeeper >> mail # user >> Use zookeeper as Load Blancer


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Re: Use zookeeper as Load Blancer
I think what Neo Qing is looking is to build soem protoclos on top of
ZooKeeper services to handle load balancing and fail over of other systems
not an quorum in the cluster of ZooKeeper services itself.
On Wed, May 15, 2013 at 11:09 AM, German Blanco <
[EMAIL PROTECTED]> wrote:

> Hello Neo Qing,
>
> I am not the best expert, but I will try to help.
> I understand that you want to have a ZooKeeper client connected to a
> cluster and you wonder if there will be fail over and load balancing for
> the requests coming from that client. If I didn't get the question right,
> please correct me.
> If I am not wrong, if the ZooKeeper client loses its connection it will try
> to reconnect to any of the servers that are indicated when you create the
> ZooKeeper object, so there will be fail over. Of course, that will mean a
> new connection. Some failures in the servers can be handled without the
> client losing its connection, e.g. when a server other than the one you are
> connected to goes down but there is still a quorum in the cluster.
> Load Balancing for ZooKeeper write requests coming from clients wouldn't
> help because all request need to go through the leader. Load Balancing of
> read request could be achieved if the ZooKeeper clients connections are
> balanced between the servers of the cluster, but not for a single client
> connection.
>
> I hope that helps. Anybody, please correct me if I got anything wrong.
> Cheers,
>
> Germán Blanco.
>
>
>
> On Wed, May 15, 2013 at 7:26 AM, Neo Qing <[EMAIL PROTECTED]> wrote:
>
> > Hi,There
> >   I'm new to zookeeper, currently I'm working on a project, I have a
> > cluster of server, client need to connection server (TCP/IP), and we need
> > to keep the connection long live.
> >   To do the fail over and load balance , I was wondering whether
> zookeeper
> > can handle this case, especially for long live connection.
> >   thanks in advance.
> >
> > Neo
> >
>
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB