Connecting to the cluster

Question

Hi,
          I have a cluster running on a multihomed Solaris Server. It is made of two
          servers running on IP1 and IP2 (both using port 7001). It says in the
          documentation that I can put in the IPs of the two servers separated by a
          comma for the cluster address. So the address that I put in was
          "IP1:7001,IP2:7001" instead of a DNS name.
          How do I connect to the cluster. If I connect to IP1:7001 then I am
          connecting to the server and not the cluster, correct?
          I would appreciate any help,
          Mohammad
          

Answer 1

Sorry for the delay, I have been extremely busy...
          There are several alternatives -- DNS round-robin, hardware load balancers
          (e.g., Cisco LocalDirector), etc.
          Mica Cooper wrote:
          > Robert,
          >
          > WLBS is Windows Load Balancing Service. It was designed to only use 1 IP per
          > box. It comes on the server editions. Do you know of something else? Linux
          > or Solaris maybe?
          >
          > Mica
          >
          > "Robert Patrick" <[email protected]> wrote in message
          > news:[email protected]...
          > > Hi,
          > >
          > > I'm not sure what WLBS is but I guess my question is does it really need
          > to know
          > > that the IP addresses happen to point to the same machine? What happens
          > if you
          > > just tell it that there are twice as many machines as there really are?
          > >
          > > Robert
          > >
          > > Mica Cooper wrote:
          > >
          > > > Currently,
          > > > I am using WLBS to do the load balancing and it will only handle one IP
          > per
          > > > box. Do you know of any other software to do this?
          > > > Mica
          > > >
          > > > "Robert Patrick" <[email protected]> wrote in message
          > > > news:[email protected]...
          > > > > The real answer here is that the "cluster" is virtual -- it only
          > exists
          > > > because
          > > > > there are one or more server instances running. Regardless of how you
          > > > attain
          > > > > it, you are going to connect to one or more of the server instances.
          > > > There are
          > > > > several ways to do this as has been previously discussed (e.g., DNS
          > alias
          > > > that
          > > > > does DNS round-robin-style load-balancing, a comma-separated list of
          > IP
          > > > > addresses, etc.).
          > > > >
          > > > > Mica, as for your question, you need to teach your "load-balancing IP"
          > > > about all
          > > > > of the IP addresses for the servers in the cluster and not just "one
          > IP
          > > > per
          > > > > physical machine".
          > > > >
          > > > > Hope this helps,
          > > > > Robert
          > > > >
          > > > > Mica Cooper wrote:
          > > > >
          > > > > > Tao,
          > > > > >
          > > > > > Thats not what he is asking.
          > > > > >
          > > > > > He's asking how to call MyServerClusterName instead of trying to
          > call
          > > > > > different instances by IP. I would like to know how to do this also.
          > > > > > Currently we are calling a load balancing IP and it proxies to each
          > > > instance
          > > > > > but it only works for 1 instance per box and I need 2 instances per
          > box.
          > > > > >
          > > > > > Mica Cooper
          > > > > >
          > > > > > "Tao Zhang" <[email protected]> wrote in message
          > > > > > news:[email protected]...
          > > > > > > If you don't use DNS, you can write the IP1:7001,IP2:7001 in your
          > > > > > > PROVIDER_URL, and then transfer it to InitialContext.
          > > > > > >
          > > > > > >
          > > > > > > Mohammad Khan <[email protected]> wrote in message
          > > > > > > news:[email protected]...
          > > > > > > > Hi,
          > > > > > > >
          > > > > > > > I have a cluster running on a multihomed Solaris Server. It is
          > made
          > > > of
          > > > > > two
          > > > > > > > servers running on IP1 and IP2 (both using port 7001). It says
          > in
          > > > the
          > > > > > > > documentation that I can put in the IPs of the two servers
          > separated
          > > > by
          > > > > > a
          > > > > > > > comma for the cluster address. So the address that I put in was
          > > > > > > > "IP1:7001,IP2:7001" instead of a DNS name.
          > > > > > > >
          > > > > > > > How do I connect to the cluster. If I connect to IP1:7001 then I
          > am
          > > > > > > > connecting to the server and not the cluster, correct?
          > > > > > > >
          > > > > > > > I would appreciate any help,
          > > > > > > > Mohammad
          > > > > > > >
          > > > > > > >
          > > > > > > >
          > > > > > >
          > > > > > >
          > > > >
          > >