Hi Rodrigo, Thanks a lot for your solution. Setting up the load balancer is a pretty good idea. I suppose we will try to do the same thing.
Best Regards, Sergey Zhemzhitsky -----Original Message----- From: Rodrigo K. Ferreira [mailto:[email protected]] Sent: Thursday, September 29, 2011 6:29 AM To: [email protected] Subject: Re: QPID Cluster and load balancing Hi, I had almost the same problem. For this situation I put a hw load-balancer in front of 2 qpid servers, using RoundRobin algorithm. So, the clients could connect to that VIP and the messages was distributed to 2 servers. About the consumers, I had only 1 consumer, so I put on 2 vm servers and each one was connected on one qpid server. Att., Rodrigo Kellermann Ferreira On 9/28/11, Zhemzhitsky Sergey <[email protected]> wrote: > Hi Jakub, > > I understand that all the events are synchronized between all nodes of > the cluster. > What I'd like to understand is: > > 1. Whether it is possible to distribute the connections between the > nodes of the cluster transparently for the clients of the cluster? > 2. Does it make sense to distribute connections between the nodes if > we have about 100 connections to the first node and no connections to > the second one? > 3. Are there any benefits of using two-node cluster where the first > node has > 50 connections and the second node has the same amount of connections > comparing to the two-node cluster where the first node has 100 > connections and the second node has no connections at all? > > Best Regards, > Sergey Zhemzhitsky > > > -----Original Message----- > From: Jakub Scholz [mailto:[email protected]] > Sent: Wednesday, September 28, 2011 12:43 PM > To: [email protected] > Subject: Re: QPID Cluster and load balancing > > Hi Sergey, > > From what I understood, the OpenAIS / Corosync layer used for > clustering in Qpid is anyway synchronizing the events between all > nodes. So the load should be almost the same, or? You may get some > overhead on one node from handling the connections, but is it so significant? > > Regards > Jakub > > On Wed, Sep 28, 2011 at 08:58, Zhemzhitsky Sergey > <[email protected]> wrote: >> Hi guys, >> >> I have the following issue: >> We have a two-node cluster that consists of node1 and node2. Message >> senders are written in c++ and consumers are java clients. >> The problem is that the first node (node1) is declared as the first >> node in java qpid connection factory like this >> >> amqp://guest:guest@/?failover='failover_exchange'&brokerlist='tcp://node1?connectdelay='5000'&retries='1000'&connecttimeout='5000'&heartbeat='1';tcp://node2?connectdelay='5000'&retries='1000'connecttimeout='5000'&heartbeat='1'' >> >> As the first node is listed first in the brokerlist parameter all >> java clients connect to the first node only. (They are able to >> reconnect to the second node, but only if the first node fails). >> >> The similar issue is actual for our c++ message senders too. They are >> all connect to the first node only. >> >> So the second node in our cluster acts as backup of the first node >> what we do not like. What we would like to achieve is to spread >> connections between all nodes of the cluster somehow. >> >> Is it possible? Are c++ and java qpid clients able to load-balance >> between nodes of the qpid cluster? What is the general solution for >> the described issue for the N-node cluster? >> >> >> Best Regards, >> Sergey Zhemzhitsky >> >> >> _______________________________________________________ >> >> The information contained in this message may be privileged and conf >> idential and protected from disclosure. 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If you have received this communication in error, please notify the sender immediately by replying to this message and delete it from your computer. Thank you for your cooperation. Troika Dialog, Russia. If you need assistance please contact our Contact Center (+7495) 258 0500 or go to www.troika.ru/eng/Contacts/system.wbp --------------------------------------------------------------------- Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:[email protected]
