All stacks get the same mcast_addr
Hello,
In JBoss 5.1, I've added the following protocol stack in file "cluster/jgroups-channelfactory.sar/META-INF/jgroups-channelfactory-stacks.xml"
<stack name="blogic-udp" description="Connects to Business logic cluster">
<config>
<UDP
singleton_name="blogic-udp"
mcast_port="${jboss.jgroups.udp.mcast_port:45688}"
mcast_addr="${blogic.partition.udpGroup}"
tos="8"
ucast_recv_buf_size="20000000"
ucast_send_buf_size="640000"
mcast_recv_buf_size="25000000"
mcast_send_buf_size="640000"
loopback="true"
discard_incompatible_packets="true"
enable_bundling="false"
max_bundle_size="64000"
max_bundle_timeout="30"
use_incoming_packet_handler="true"
ip_ttl="${jgroups.udp.ip_ttl:2}"
thread_naming_pattern="cl"
timer.num_threads="12"
enable_diagnostics="${jboss.jgroups.enable_diagnostics:true}"
diagnostics_addr="${jboss.jgroups.diagnostics_addr:224.0.0.75}"
diagnostics_port="${jboss.jgroups.diagnostics_port:7500}"
use_concurrent_stack="true"
thread_pool.enabled="true"
thread_pool.min_threads="20"
thread_pool.max_threads="200"
thread_pool.keep_alive_time="5000"
thread_pool.queue_enabled="true"
thread_pool.queue_max_size="1000"
thread_pool.rejection_policy="discard"
oob_thread_pool.enabled="true"
oob_thread_pool.min_threads="1"
oob_thread_pool.max_threads="20"
oob_thread_pool.keep_alive_time="5000"
oob_thread_pool.queue_enabled="false"
oob_thread_pool.queue_max_size="100"
oob_thread_pool.rejection_policy="run"/>
<PING timeout="2000" num_initial_members="3"/>
<MERGE2 max_interval="100000" min_interval="20000"/>
<FD_SOCK/>
<FD timeout="6000" max_tries="5" shun="true"/>
<VERIFY_SUSPECT timeout="1500"/>
<pbcast.NAKACK use_mcast_xmit="false" gc_lag="0"
retransmit_timeout="300,600,1200,2400,4800"
discard_delivered_msgs="true"/>
<UNICAST timeout="300,600,1200,2400,3600"/>
<pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
max_bytes="400000"/>
<pbcast.GMS print_local_addr="true" join_timeout="3000" shun="true"
view_bundling="true"
view_ack_collection_timeout="5000"/>
<FC max_credits="2000000" min_threshold="0.10"
ignore_synchronous_response="true"/>
<FRAG2 frag_size="60000"/>
<!-- pbcast.STREAMING_STATE_TRANSFER/ -->
<pbcast.STATE_TRANSFER/>
<pbcast.FLUSH timeout="0"/>
</config>
</stack>
Basically, I just copied the "udp" configuration and changed the multicast address entry so I can control it with system properties.
mcast_addr="${blogic.partition.udpGroup}"
I want this particular protocol stack to use a different multicast address than the rest of the stacks.
My problem is that when I run JBoss with the -u parameter, all the protocol stacks get the same address, regardless of what I put in the mcast_addr attribute.
For example, running JBoss with the JVM parameter:
-Dblogic.partition.udpGroup=228.11.11.13
and
-u 228.11.11.12
Causes my new protocol stack "blogic-udp" to use 228.11.11.12 instead of 228.11.11.13.
This behavior occurs even if I hard code the IP address right in the configuration file.
Am I doing something wrong?
How can I prevent this from happening?