1:07 p.m.
I ran the jgroups Probe utility on the cluster and this is what I found. There are two
group-names "Tomcat-Cluster" and "DefaultPartition". While
"Tomcat-Cluster" sees both the JBoss nodes, "DefaultPartition" only
sees the local node. Obviously, there is some difference is the partition configuration
between Tomcat-Cluster and DefaultPartition.
However, I'm not sure how to decode the differences, so if someone can help me,
it'll be much appreciated.
Thanks,
Nitesh
java -cp jgroups-2.4.1.jar org.jgroups.tests.Probe -addr 239.0.1.113 -query jmx -query
props
---------------------------------------------------------------------------
-- send probe on /239.0.1.113:7500
#1 (2235 bytes): 10.191.10.147:32912 (DefaultPartition)
local_addr=10.191.10.147:32912
group_name=DefaultPartition
version=2.4.1, cvs="$Id: Version.java,v 1.42.2.1 2006/12/04 13:57:06 belaban Exp
$"
view: [10.191.10.147:32912|0] [10.191.10.147:32912]
group_addr=239.0.1.113:45566
stats:
UNICAST={num_bytes_sent=1505, num_xmit_requests_received=0, num_acks_sent=1,
num_msgs_sent=1, num_acks_received=1, num_msgs_received=1, num_bytes_received=1505}
NAKACK={xmit_rsps_received=0, xmit_rsps_sent=0, missing_msgs_received=0, xmit_reqs_sent=0,
sent_msgs=[381 - 435] (55), received_msgs=10.191.10.147:32912: received_msgs: [],
delivered_msgs: [382 - 435] (size=53)
, xmit_reqs_received=0}
UDP={num_bytes_sent=113355, num_msgs_sent=954, num_msgs_received=954,
num_bytes_received=1749}
channel={received_bytes=0, sent_msgs=0, received_msgs=0, sent_bytes=0}
props:
<UDP mcast_port="45566"
mcast_recv_buf_size="150000"
mcast_send_buf_size="800000"
mcast_addr="239.0.1.113"
loopback="false"
ip_mcast="true"
ucast_recv_buf_size="150000"
ip_ttl="8"
ucast_send_buf_size="800000" />
<PING num_initial_members="3"
up_thread="true"
timeout="2000"
down_thread="true" />
<MERGE2 max_interval="20000"
min_interval="10000" />
<FD max_tries="5" shun="true"
up_thread="true"
timeout="2500"
down_thread="true" />
<FD_SOCK up_thread="false"
down_thread="false" />
<VERIFY_SUSPECT num_msgs="3"
up_thread="true"
timeout="3000"
down_thread="true" />
<NAKACK max_xmit_size="8192"
up_thread="true"
retransmit_timeout="300,600,1200,2400,4800"
down_thread="true"
gc_lag="50" />
<UNICAST min_threshold="10"
window_size="100"
timeout="300,600,1200,2400,4800"
down_thread="true" />
<STABLE up_thread="true"
desired_avg_gossip="20000"
down_thread="true" />
<FRAG up_thread="true"
frag_size="8192"
down_thread="true" />
<GMS shun="true"
print_local_addr="true"
join_timeout="5000"
join_retry_timeout="2000" />
<STATE_TRANSFER
up_thread="true"
down_thread="true" />
#2 (2259 bytes): 10.191.10.147:32921 (Tomcat-Cluster)
local_addr=10.191.10.147:32921
group_name=Tomcat-Cluster
version=2.4.1, cvs="$Id: Version.java,v 1.42.2.1 2006/12/04 13:57:06 belaban Exp
$"
view: MergeView::[10.191.10.147:32921|1] [10.191.10.147:32921, 10.191.10.148:37308],
subgroups=[[10.191.10.147:32921|0] [10.191.10.147:32921], [10.191.10.148:37308|0]
[10.191.10.148:37308]]
group_addr=239.0.1.113:45577
stats:
UNICAST={num_bytes_sent=0, num_xmit_requests_received=0, num_acks_sent=4, num_msgs_sent=6,
num_acks_received=6, num_msgs_received=4, num_bytes_received=0}
NAKACK={xmit_rsps_received=0, xmit_rsps_sent=0, missing_msgs_received=0, xmit_reqs_sent=0,
sent_msgs=[114 - 239] (126), received_msgs=10.191.10.148:37308: received_msgs: [],
delivered_msgs: [null - null]
10.191.10.147:32921: received_msgs: [], delivered_msgs: [115 - 239] (size=124)
, xmit_reqs_received=0}
UDP={num_bytes_sent=62081, num_msgs_sent=771, num_msgs_received=1715,
num_bytes_received=0}
channel={received_bytes=0, sent_msgs=0, received_msgs=0, sent_bytes=0}
props:
<UDP mcast_port="45577"
mcast_recv_buf_size="80000"
mcast_send_buf_size="150000"
mcast_addr="239.0.1.113"
loopback="false"
ip_mcast="true"
ucast_recv_buf_size="80000"
ip_ttl="8"
ucast_send_buf_size="150000" />
<PING num_initial_members="3"
up_thread="false"
timeout="2000"
down_thread="false" />
<MERGE2 max_interval="20000"
min_interval="10000" />
<FD_SOCK />
<VERIFY_SUSPECT
up_thread="false"
timeout="1500"
down_thread="false" />
<NAKACK max_xmit_size="8192"
up_thread="false"
retransmit_timeout="600,1200,2400,4800"
down_thread="false"
gc_lag="50" />
<UNICAST min_threshold="10"
window_size="100"
timeout="600,1200,2400"
down_thread="false" />
<STABLE up_thread="false"
desired_avg_gossip="20000"
down_thread="false" />
<FRAG up_thread="false"
frag_size="8192"
down_thread="false" />
<GMS shun="true"
print_local_addr="true"
join_timeout="5000"
join_retry_timeout="2000" />
<STATE_TRANSFER
up_thread="true"
down_thread="true" />
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