In a cluster having two nodes A & B, A is up and running and when B is started for the first time it sometimes hangs in JChannel.connect.
If we bring down A then B is able to resume and connect. This issue happens randomly but frequently.
Please let us know if we have missed something or need something.
The jgroups configuration used is :
<config>
<UDP
mcast_addr="${jgroups.udp.mcast_addr:224.0.0.0}"
mcast_port="${jgroups.udp.mcast_port:$JGroup_port}"
tos="8"
ucast_recv_buf_size="20000000"
ucast_send_buf_size="640000"
mcast_recv_buf_size="25000000"
mcast_send_buf_size="640000"
loopback="false"
discard_incompatible_packets="true"
max_bundle_size="64000"
max_bundle_timeout="30"
use_incoming_packet_handler="true"
ip_ttl="${jgroups.udp.ip_ttl:2}"
enable_bundling="true"
enable_diagnostics="true"
thread_naming_pattern="cl"

use_concurrent_stack="true"

thread_pool.enabled="true"
thread_pool.min_threads="2"
thread_pool.max_threads="8"
thread_pool.keep_alive_time="5000"
thread_pool.queue_enabled="true"
thread_pool.queue_max_size="1000"
thread_pool.rejection_policy="Run"

oob_thread_pool.enabled="true"
oob_thread_pool.min_threads="1"
oob_thread_pool.max_threads="8"
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="30000"
min_interval="10000"/>
<FD_SOCK/>
<FD timeout="10000" max_tries="5" shun="true"/>
<VERIFY_SUSPECT timeout="1500" />
<BARRIER />
<pbcast.NAKACK use_stats_for_retransmission="false"
exponential_backoff="150"
use_mcast_xmit="true" gc_lag="0"
retransmit_timeout="50,300,600,1200"
discard_delivered_msgs="true"/>
<UNICAST timeout="300,600,1200"/>
<pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
max_bytes="1000000"/>
<VIEW_SYNC avg_send_interval="60000" />
<pbcast.GMS print_local_addr="true" join_timeout="5000"
shun="false"
view_bundling="true"/>
<FC max_credits="500000"
min_threshold="0.20"/>
<FRAG2 frag_size="60000" />
<pbcast.STREAMING_STATE_TRANSFER />
<!-- <pbcast.STATE_TRANSFER />-->
<pbcast.FLUSH timeout="0"/>
</config>