Weblogic managed servers connecting to the servers in different cluster

Question

          Hi All,
          We have a weired problem going on for a while. We have a cluster configuration
          with an admin server and two managed servers. We have the similar configuration
          in DEV, TEST and PROD. The problem is that the managed server members in DEV cluster
          are making connections to managed servers which are member of PROD cluster for
          session replication. The same way TEST servers are trying to connect to PROD and
          DEV.
          Has anyone seen this kind of problem before. BEA seems to be cluless so far.
          Thanks in adavnce for your input.
          Udit
          

Answer 1

          Venkat,
          Thats a good suggestion but these things are too obvious to ignore. We have different
          multicast address in DEV and PROD and also hosts are on different sub net. I do
          not know if cluster name will make any differene though.
          Thanks for your input anyway,
          Udit
          "venkat" <[email protected]> wrote:
          >
          >Udit,
          > You can check the sub net, multicast address and the cluster name.
          >If the dev
          >and prod servers are in the same sub net with same multicast address,
          >then change
          >the multicast and try.
          >
          >Venkat
          >"venkat" <[email protected]> wrote:
          >>
          >>Udit,
          >>
          >>
          >>"Udit Singh" <[email protected]> wrote:
          >>>
          >>>Kumar,
          >>>Thanks for the reply.
          >>>The situation is that managed server in DEV try to replicate the session
          >>>to a
          >>>managed server in PROD and TEST and vice versa.
          >>>Let us say our dev managed servers are running on abc01 and abc02 and
          >>>prod managed
          >>>servers are running on xyz01 and xyz02. All the managed servers are
          >>running
          >>>on
          >>>port 7005.
          >>>If I do the netstat on abc01 or abc02 I could the see established connections
          >>>between abc01/02 and xyz01/02.
          >>>Why is that happening? We are running 6.1SP2.
          >>>
          >>>Udit
          >>>
          >>>Kumar Allamraju <[email protected]> wrote:
          >>>>We do not restrict intercluster communication as of 61 SP3.
          >>>>Once we get the IP from the cookie, we can safely make a
          >>>>connection to the other clustered node. We were not checking
          >>>>if the server is part of the same cluster or not. This is
          >>>>already fixed in 7.x and 61 SP4(not yet released) If you are
          >>>>on 61 Sp2 or SP3 then you should contact support and
          >>>>reference CR # CR089798 to get a one off patch.
          >>>>
          >>>>Regardless, are you traversing from DEV to PROD cluster and
          >>>>vice-versa. If not then this problem shouldn't happen unless
          >>>>plugin is routing the request to wrong cluster.
          >>>>
          >>>>--
          >>>>Kumar
          >>>>
          >>>>Udit Singh wrote:
          >>>>> Hi All,
          >>>>> We have a weired problem going on for a while. We have a cluster
          >>configuration
          >>>>> with an admin server and two managed servers. We have the similar
          >>>configuration
          >>>>> in DEV, TEST and PROD. The problem is that the managed server members
          >>>>in DEV cluster
          >>>>> are making connections to managed servers which are member of PROD
          >>>>cluster for
          >>>>> session replication. The same way TEST servers are trying to connect
          >>>>to PROD and
          >>>>> DEV.
          >>>>> Has anyone seen this kind of problem before. BEA seems to be cluless
          >>>>so far.
          >>>>>
          >>>>> Thanks in adavnce for your input.
          >>>>> Udit
          >>>>
          >>>
          >>
          >