[jboss-user] [Clustering/JBoss] - Re: JBossAS 4.2.0, TCP Stack, Segmenting Partitions

[nhelder]

Thanks for the tip, but changing the TCP start_port (along with changing the partition name) doesn't seem to do the trick... I still see messages along the lines of:

anonymous wrote : 2007-07-11 10:44:15,658 WARN  [org.jgroups.protocols.UDP] discarded message from different group "DefaultPartition-EntityCache" (our group is "xyz_partition-EntityCache"). Sender was xxx.xxx.12.185:2961
>From this (older) thread http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3840501#3840501 I'm led to believe these are legitimate WARN messages - that the partition I'm creating is not "validly" unique.


So, I guess I'm still wondering how to properly segment my partition from the other one... any additional suggestions would be greatly appreciated.

Thanks,

  - Nathan


PS. The "other one" in this case is another developer's machine - interestingly, one that isn't using the TCP stack at all, just the default UDP stack. And when I don't specify a different partition name on my machine, the two JBoss servers actually do appear to cluster successfully... which is somewhat surprising to me. I wouldn't have thought a TCP based server would accept views from a UDP based server. But anyway.

PPS. For reference, here's the JGroups section of my cluster-service.xml file:

      <!-- The JGroups protocol configuration -->
  |       <attribute name="PartitionConfig">
  |          <!--
  |          The default UDP stack:
  |          - If you have a multihomed machine, set the UDP protocol's bind_addr attribute to the
  |          appropriate NIC IP address, e.g bind_addr="192.168.0.2".
  |          - On Windows machines, because of the media sense feature being broken with multicast
  |          (even after disabling media sense) set the UDP protocol's loopback attribute to true
  |          <Config>
  |             <UDP mcast_addr="${jboss.partition.udpGroup:228.1.2.3}" 
  |                  mcast_port="${jboss.hapartition.mcast_port:45566}"
  |                  tos="8"
  |                  ucast_recv_buf_size="20000000"
  |                  ucast_send_buf_size="640000"
  |                  mcast_recv_buf_size="25000000"
  |                  mcast_send_buf_size="640000"
  |                  loopback="false"
  |                  discard_incompatible_packets="true"
  |                  enable_bundling="false"
  |                  max_bundle_size="64000"
  |                  max_bundle_timeout="30"
  |                  use_incoming_packet_handler="true"
  |                  use_outgoing_packet_handler="false"
  |                  ip_ttl="${jgroups.udp.ip_ttl:2}"
  |                  down_thread="false" up_thread="false"/>
  |             <PING timeout="2000"
  |                   down_thread="false" up_thread="false" num_initial_members="3"/>
  |             <MERGE2 max_interval="100000"
  |                     down_thread="false" up_thread="false" min_interval="20000"/>
  |             <FD_SOCK down_thread="false" up_thread="false"/>
  |             <FD timeout="10000" max_tries="5" down_thread="false" up_thread="false" shun="true"/>
  |             <VERIFY_SUSPECT timeout="1500" down_thread="false" up_thread="false"/>
  |             <pbcast.NAKACK max_xmit_size="60000"
  |                     use_mcast_xmit="false" gc_lag="0"
  |                     retransmit_timeout="300,600,1200,2400,4800"
  |                     down_thread="false" up_thread="false"
  |                     discard_delivered_msgs="true"/>
  |             <UNICAST timeout="300,600,1200,2400,3600"
  |                     down_thread="false" up_thread="false"/>
  |             <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
  |                     down_thread="false" up_thread="false"
  |                     max_bytes="400000"/>
  |             <pbcast.GMS print_local_addr="true" join_timeout="3000"
  |                     down_thread="false" up_thread="false"
  |                     join_retry_timeout="2000" shun="true"
  |                     view_bundling="true"/>
  |             <FRAG2 frag_size="60000" down_thread="false" up_thread="false"/>
  |             <pbcast.STATE_TRANSFER down_thread="false" up_thread="false" use_flush="false"/>
  |          </Config>
  |          -->
  | 
  |          <!-- Alternate TCP stack: customize it for your environment, change bind_addr and initial_hosts -->
  |          <Config>
  |             <TCP bind_addr="nhelder07l" start_port="7850" loopback="true"
  |                  tcp_nodelay="true"
  |                  recv_buf_size="20000000"
  |                  send_buf_size="640000"
  |                  discard_incompatible_packets="true"
  |                  enable_bundling="false"
  |                  max_bundle_size="64000"
  |                  max_bundle_timeout="30"
  |                  use_incoming_packet_handler="true"
  |                  use_outgoing_packet_handler="false"
  |                  down_thread="false" up_thread="false"
  |                  use_send_queues="false"
  |                  sock_conn_timeout="300"
  |                  skip_suspected_members="true"/>
  |             <TCPPING initial_hosts="nhelder07l[7850]" port_range="3"
  |                      timeout="3000"
  |                      down_thread="false" up_thread="false"
  |                      num_initial_members="1"/>
  |             <MERGE2 max_interval="100000"
  |                     down_thread="false" up_thread="false" min_interval="20000"/>
  |             <FD_SOCK down_thread="false" up_thread="false"/>
  |             <FD timeout="10000" max_tries="5" down_thread="false" up_thread="false" shun="true"/>
  |             <VERIFY_SUSPECT timeout="1500" down_thread="false" up_thread="false"/>
  |             <pbcast.NAKACK max_xmit_size="60000"
  |                            use_mcast_xmit="false" gc_lag="0"
  |                            retransmit_timeout="300,600,1200,2400,4800"
  |                            down_thread="false" up_thread="false"
  |                            discard_delivered_msgs="true"/>
  |             <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
  |                            down_thread="false" up_thread="false"
  |                            max_bytes="400000"/>
  |             <pbcast.GMS print_local_addr="true" join_timeout="3000"
  |                         down_thread="false" up_thread="false"
  |                         join_retry_timeout="2000" shun="true"
  |                         view_bundling="true"/>
  |             <pbcast.STATE_TRANSFER down_thread="false" up_thread="false" use_flush="false"/>
  |          </Config>
  |       </attribute>
  |       <depends>jboss:service=Naming</depends>
  |    </mbean>

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