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Posted to user@zookeeper.apache.org by Neo Qing <ne...@gmail.com> on 2013/05/15 07:26:17 UTC
Use zookeeper as Load Blancer
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
Re: Use zookeeper as Load Blancer
Posted by Jordan Zimmerman <jo...@jordanzimmerman.com>.
FYI Curator comes with a Service Discovery recipe.
====================
Jordan Zimmerman
On May 15, 2013, at 6:23 PM, Neo Qing <ne...@gmail.com> wrote:
> Hi,Germán Blanco:
> Thanks for your detailed response, but my thought is little bit
> different compare with your point. Actually my thought is same as Bahman
> Kalali said, our service is based on ZooKeeper to implement a 'service
> discovery' service. Thanks for your suggestion, I'll keep that in my mind.
>
> Neo
>
>
> On Thu, May 16, 2013 at 12:09 AM, German Blanco <
> german.blanco.blanco@gmail.com> 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 <ne...@gmail.com> 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
>>
Re: Use zookeeper as Load Blancer
Posted by Neo Qing <ne...@gmail.com>.
Hi,Germán Blanco:
Thanks for your detailed response, but my thought is little bit
different compare with your point. Actually my thought is same as Bahman
Kalali said, our service is based on ZooKeeper to implement a 'service
discovery' service. Thanks for your suggestion, I'll keep that in my mind.
Neo
On Thu, May 16, 2013 at 12:09 AM, German Blanco <
german.blanco.blanco@gmail.com> 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 <ne...@gmail.com> 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
> >
>
Re: Use zookeeper as Load Blancer
Posted by Neo Qing <ne...@gmail.com>.
Hi,Bahman:
Yes, you are absolutely right, that's I'm looking for :)
Neo
On Thu, May 16, 2013 at 12:26 AM, Bahman Kalali <ba...@gmail.com>wrote:
> 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 <
> german.blanco.blanco@gmail.com> 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 <ne...@gmail.com> 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
> > >
> >
>
Re: Use zookeeper as Load Blancer
Posted by Bahman Kalali <ba...@gmail.com>.
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 <
german.blanco.blanco@gmail.com> 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 <ne...@gmail.com> 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
> >
>
Re: Use zookeeper as Load Blancer
Posted by German Blanco <ge...@gmail.com>.
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 <ne...@gmail.com> 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
>
Re: Use zookeeper as Load Blancer
Posted by Neo Qing <ne...@gmail.com>.
Hi,Jordan:
Yes,I'm also trying to learn ribbon, and compare ribbon and norbert,
which one is more applicable for us, thanks a lot.
Neo
On Thu, May 16, 2013 at 12:01 AM, Jordan Zimmerman <
jordan@jordanzimmerman.com> wrote:
> We (Netflix) have a open source load balancer as well:
> https://github.com/Netflix/ribbon
>
>
> ====================
> Jordan Zimmerman
>
> On May 15, 2013, at 8:55 AM, Camille Fournier <ca...@apache.org> wrote:
>
> > You can certainly use ZK for this use case. You'll have to implement the
> > load balancing algorithm yourself but zookeeper can certainly be used for
> > this. You might look at some related open source solutions already out
> > there like norbert:
> > http://data.linkedin.com/opensource/norbert
> >
> > C
> >
> >
> > On Wed, May 15, 2013 at 1:26 AM, Neo Qing <ne...@gmail.com> 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
> >>
>
Re: Use zookeeper as Load Blancer
Posted by Jordan Zimmerman <jo...@jordanzimmerman.com>.
We (Netflix) have a open source load balancer as well: https://github.com/Netflix/ribbon
====================
Jordan Zimmerman
On May 15, 2013, at 8:55 AM, Camille Fournier <ca...@apache.org> wrote:
> You can certainly use ZK for this use case. You'll have to implement the
> load balancing algorithm yourself but zookeeper can certainly be used for
> this. You might look at some related open source solutions already out
> there like norbert:
> http://data.linkedin.com/opensource/norbert
>
> C
>
>
> On Wed, May 15, 2013 at 1:26 AM, Neo Qing <ne...@gmail.com> 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
>>
Re: Use zookeeper with Cassandra
Posted by Brian Tarbox <br...@gmail.com>.
Many thanks for the clear and concise explanation! I'll check out the
slides.
Brian
On Fri, Jul 19, 2013 at 11:29 AM, Ben Bangert <be...@groovie.org> wrote:
> On Jul 19, 2013, at 5:59 AM, Brian Tarbox <br...@gmail.com> wrote:
>
> > Can you say more about this? We use Zookeeper to manage a large set of
> > "work units" which are selected, locked, processed by EC2 worker
> > computers...which then do work on and with Cassandra data.
>
> Sure, there's two parts to it. First, holding a lock external to Cassandra
> itself has its own issue. This is because while you might be able to
> guarantee that only one person is doing something with Cassandra, short of
> using CL.ALL, there's no way to fully ensure that two people don't stomp on
> updates. If you use CL.QUORUM, its still possible that a node could be
> holding hints, client releases ZK lock, another client gets the lock, does
> a read and if timed poorly will not see the prior change.
>
> Cassandra's CAS operation properly deals with this since its handled
> inside Cassandra itself.
>
> Jonathan Ellis went over why client locks don't work for Cassandra at the
> Cassandra Summit, slides from his talk here:
> http://www.slideshare.net/jbellis/cassandra-summit-2013-keynote
>
> He goes over CAS on slide 52-60.
>
> Cheers,
> Ben
--
http://about.me/BrianTarbox
Re: Use zookeeper with Cassandra
Posted by Ben Bangert <be...@groovie.org>.
On Jul 19, 2013, at 5:59 AM, Brian Tarbox <br...@gmail.com> wrote:
> Can you say more about this? We use Zookeeper to manage a large set of
> "work units" which are selected, locked, processed by EC2 worker
> computers...which then do work on and with Cassandra data.
Sure, there's two parts to it. First, holding a lock external to Cassandra itself has its own issue. This is because while you might be able to guarantee that only one person is doing something with Cassandra, short of using CL.ALL, there's no way to fully ensure that two people don't stomp on updates. If you use CL.QUORUM, its still possible that a node could be holding hints, client releases ZK lock, another client gets the lock, does a read and if timed poorly will not see the prior change.
Cassandra's CAS operation properly deals with this since its handled inside Cassandra itself.
Jonathan Ellis went over why client locks don't work for Cassandra at the Cassandra Summit, slides from his talk here:
http://www.slideshare.net/jbellis/cassandra-summit-2013-keynote
He goes over CAS on slide 52-60.
Cheers,
Ben
Re: Use zookeeper with Cassandra
Posted by Brian Tarbox <br...@gmail.com>.
Can you say more about this? We use Zookeeper to manage a large set of
"work units" which are selected, locked, processed by EC2 worker
computers...which then do work on and with Cassandra data.
On Thu, Jul 18, 2013 at 9:31 PM, Ben Bangert <be...@groovie.org> wrote:
> On May 15, 2013, at 1:10 PM, Dilip Kumar <Di...@hcl.com> wrote:
>
> > Thanks Kim. I am using Hector API. My manager is asking to integrate
> Zookeeper with Cassandra. I am exploring possibilities and benefit of this
> integration.
>
> This shouldn't be needed. Cassandra 2.0 beta includes CAS operations which
> implement a Paxos subset.
>
> Cheers,
> Ben
--
http://about.me/BrianTarbox
Re: Use zookeeper with Cassandra
Posted by Ben Bangert <be...@groovie.org>.
On May 15, 2013, at 1:10 PM, Dilip Kumar <Di...@hcl.com> wrote:
> Thanks Kim. I am using Hector API. My manager is asking to integrate Zookeeper with Cassandra. I am exploring possibilities and benefit of this integration.
This shouldn't be needed. Cassandra 2.0 beta includes CAS operations which implement a Paxos subset.
Cheers,
Ben
RE: Use zookeeper with Cassandra
Posted by Dilip Kumar <Di...@hcl.com>.
Thanks Kim. I am using Hector API. My manager is asking to integrate Zookeeper with Cassandra. I am exploring possibilities and benefit of this integration.
Please advice.
Thanks,
Dilip Kumar
-----Original Message-----
From: Jordan Zimmerman [mailto:jordan@jordanzimmerman.com]
Sent: Wednesday, May 15, 2013 3:33 PM
To: user@zookeeper.apache.org
Subject: Re: Use zookeeper with Cassandra
Astayanx can do it too :)
On May 15, 2013, at 12:31 PM, Owen Kim <oh...@gmail.com> wrote:
> In what way are you hoping to monitor Cassandra and what Cassandra
> client are you using? I couldn't speak to exactly what you're asking
> but if you're looking for just looking to detect what nodes are in the
> Cassandra cluster, some clients like Hector can handle retry and
> discovery for you by querying Cassandra directly for the ring.
>
>
> On Wed, May 15, 2013 at 9:28 AM, Dilip Kumar <Di...@hcl.com> wrote:
>
>> Hi All,
>>
>> I am working in a project to use Cassandra. We are trying to use
>> Zookeeper to manage Cassandra clusters. We are looking for following
>>
>> 1. Zookeeper in cluster mode (I installed and it is working fine) 2.
>> Allow Zookeeper to monitor Cassandra cluster (I don't know how to do
>> this)
>> 3. Use Zookeeper to perform atomic transaction for Cassandra
>>
>> Please help. I did lot of search on Google.com however couldn't find
>> anything specific to this. There are some thread to use Cage library
>> for Zookeeper and Cassandra however I am stuck at first level to how
>> to use Zookeeper for Cassandra first?
>>
>> Please help.
>>
>> Thanks,
>> Dilip Kumar
>>
>>
>>
>> ::DISCLAIMER::
>>
>> ---------------------------------------------------------------------
>> ---------------------------------------------------------------------
>> ----------
>>
>> The contents of this e-mail and any attachment(s) are confidential
>> and intended for the named recipient(s) only.
>> E-mail transmission is not guaranteed to be secure or error-free as
>> information could be intercepted, corrupted, lost, destroyed, arrive
>> late or incomplete, or may contain viruses in transmission. The e
>> mail and its contents (with or without referred errors) shall
>> therefore not attach any liability on the originator or HCL or its
>> affiliates.
>> Views or opinions, if any, presented in this email are solely those
>> of the author and may not necessarily reflect the views or opinions
>> of HCL or its affiliates. Any form of reproduction, dissemination,
>> copying, disclosure, modification, distribution and / or publication
>> of this message without the prior written consent of authorized
>> representative of HCL is strictly prohibited. If you have received
>> this email in error please delete it and notify the sender
>> immediately.
>> Before opening any email and/or attachments, please check them for
>> viruses and other defects.
>>
>>
>> ---------------------------------------------------------------------
>> ---------------------------------------------------------------------
>> ----------
>>
>>
Re: Use zookeeper with Cassandra
Posted by Jordan Zimmerman <jo...@jordanzimmerman.com>.
Astayanx can do it too :)
On May 15, 2013, at 12:31 PM, Owen Kim <oh...@gmail.com> wrote:
> In what way are you hoping to monitor Cassandra and what Cassandra client
> are you using? I couldn't speak to exactly what you're asking but if you're
> looking for just looking to detect what nodes are in the Cassandra cluster,
> some clients like Hector can handle retry and discovery for you by querying
> Cassandra directly for the ring.
>
>
> On Wed, May 15, 2013 at 9:28 AM, Dilip Kumar <Di...@hcl.com> wrote:
>
>> Hi All,
>>
>> I am working in a project to use Cassandra. We are trying to use Zookeeper
>> to manage Cassandra clusters. We are looking for following
>>
>> 1. Zookeeper in cluster mode (I installed and it is working fine)
>> 2. Allow Zookeeper to monitor Cassandra cluster (I don't know how to do
>> this)
>> 3. Use Zookeeper to perform atomic transaction for Cassandra
>>
>> Please help. I did lot of search on Google.com however couldn't find
>> anything specific to this. There are some thread to use Cage library for
>> Zookeeper and Cassandra however I am stuck at first level to how to use
>> Zookeeper for Cassandra first?
>>
>> Please help.
>>
>> Thanks,
>> Dilip Kumar
>>
>>
>>
>> ::DISCLAIMER::
>>
>> ----------------------------------------------------------------------------------------------------------------------------------------------------
>>
>> The contents of this e-mail and any attachment(s) are confidential and
>> intended for the named recipient(s) only.
>> E-mail transmission is not guaranteed to be secure or error-free as
>> information could be intercepted, corrupted,
>> lost, destroyed, arrive late or incomplete, or may contain viruses in
>> transmission. The e mail and its contents
>> (with or without referred errors) shall therefore not attach any liability
>> on the originator or HCL or its affiliates.
>> Views or opinions, if any, presented in this email are solely those of the
>> author and may not necessarily reflect the
>> views or opinions of HCL or its affiliates. Any form of reproduction,
>> dissemination, copying, disclosure, modification,
>> distribution and / or publication of this message without the prior
>> written consent of authorized representative of
>> HCL is strictly prohibited. If you have received this email in error
>> please delete it and notify the sender immediately.
>> Before opening any email and/or attachments, please check them for viruses
>> and other defects.
>>
>>
>> ----------------------------------------------------------------------------------------------------------------------------------------------------
>>
>>
Re: Use zookeeper with Cassandra
Posted by Owen Kim <oh...@gmail.com>.
In what way are you hoping to monitor Cassandra and what Cassandra client
are you using? I couldn't speak to exactly what you're asking but if you're
looking for just looking to detect what nodes are in the Cassandra cluster,
some clients like Hector can handle retry and discovery for you by querying
Cassandra directly for the ring.
On Wed, May 15, 2013 at 9:28 AM, Dilip Kumar <Di...@hcl.com> wrote:
> Hi All,
>
> I am working in a project to use Cassandra. We are trying to use Zookeeper
> to manage Cassandra clusters. We are looking for following
>
> 1. Zookeeper in cluster mode (I installed and it is working fine)
> 2. Allow Zookeeper to monitor Cassandra cluster (I don't know how to do
> this)
> 3. Use Zookeeper to perform atomic transaction for Cassandra
>
> Please help. I did lot of search on Google.com however couldn't find
> anything specific to this. There are some thread to use Cage library for
> Zookeeper and Cassandra however I am stuck at first level to how to use
> Zookeeper for Cassandra first?
>
> Please help.
>
> Thanks,
> Dilip Kumar
>
>
>
> ::DISCLAIMER::
>
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> The contents of this e-mail and any attachment(s) are confidential and
> intended for the named recipient(s) only.
> E-mail transmission is not guaranteed to be secure or error-free as
> information could be intercepted, corrupted,
> lost, destroyed, arrive late or incomplete, or may contain viruses in
> transmission. The e mail and its contents
> (with or without referred errors) shall therefore not attach any liability
> on the originator or HCL or its affiliates.
> Views or opinions, if any, presented in this email are solely those of the
> author and may not necessarily reflect the
> views or opinions of HCL or its affiliates. Any form of reproduction,
> dissemination, copying, disclosure, modification,
> distribution and / or publication of this message without the prior
> written consent of authorized representative of
> HCL is strictly prohibited. If you have received this email in error
> please delete it and notify the sender immediately.
> Before opening any email and/or attachments, please check them for viruses
> and other defects.
>
>
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
>
Use zookeeper with Cassandra
Posted by Dilip Kumar <Di...@hcl.com>.
Hi All,
I am working in a project to use Cassandra. We are trying to use Zookeeper to manage Cassandra clusters. We are looking for following
1. Zookeeper in cluster mode (I installed and it is working fine)
2. Allow Zookeeper to monitor Cassandra cluster (I don't know how to do this)
3. Use Zookeeper to perform atomic transaction for Cassandra
Please help. I did lot of search on Google.com however couldn't find anything specific to this. There are some thread to use Cage library for Zookeeper and Cassandra however I am stuck at first level to how to use Zookeeper for Cassandra first?
Please help.
Thanks,
Dilip Kumar
::DISCLAIMER::
----------------------------------------------------------------------------------------------------------------------------------------------------
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted,
lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents
(with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates.
Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the
views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification,
distribution and / or publication of this message without the prior written consent of authorized representative of
HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately.
Before opening any email and/or attachments, please check them for viruses and other defects.
----------------------------------------------------------------------------------------------------------------------------------------------------
Re: Use zookeeper as Load Blancer
Posted by Neo Qing <ne...@gmail.com>.
Hi,Camille:
Yes, actually when I research ZooKeeper, I also found norber, I'm
trying to learn it, if it can be used in our scenario, that's really
wonderfully, thanks a lot.
Neo
On Wed, May 15, 2013 at 11:55 PM, Camille Fournier <ca...@apache.org>wrote:
> You can certainly use ZK for this use case. You'll have to implement the
> load balancing algorithm yourself but zookeeper can certainly be used for
> this. You might look at some related open source solutions already out
> there like norbert:
> http://data.linkedin.com/opensource/norbert
>
> C
>
>
> On Wed, May 15, 2013 at 1:26 AM, Neo Qing <ne...@gmail.com> 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
> >
>
Re: Use zookeeper as Load Blancer
Posted by Camille Fournier <ca...@apache.org>.
You can certainly use ZK for this use case. You'll have to implement the
load balancing algorithm yourself but zookeeper can certainly be used for
this. You might look at some related open source solutions already out
there like norbert:
http://data.linkedin.com/opensource/norbert
C
On Wed, May 15, 2013 at 1:26 AM, Neo Qing <ne...@gmail.com> 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
>