1. *For Ignite cluster initialization, here is the log *
[2017-11-22T08:01:56,975][INFO ][main][IgniteKernal] Non-loopback local IPs:
10.41.91.200
[2017-11-22T08:01:56,975][INFO ][main][IgniteKernal] Enabled local MACs:
286ED488CFC0
[2017-11-22T08:03:36,496][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery accepted incoming connection [rmtAddr=/1.2.3.4, rmtPort=3918]
[2017-11-22T08:03:36,509][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery spawning a new thread for connection [rmtAddr=/1.2.3.4,
rmtPort=3918]
[2017-11-22T08:03:36,510][INFO ][tcp-disco-sock-reader-#4][TcpDiscoverySpi]
Started serving remote node connection [rmtAddr=/1.2.3.4:3918, rmtPort=3918]
[2017-11-22T08:03:36,538][INFO ][tcp-disco-sock-reader-#4][TcpDiscoverySpi]
Finished serving remote node connection [rmtAddr=/1.2.3.4:3918, rmtPort=3918
[2017-11-22T08:03:41,681][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery accepted incoming connection [rmtAddr=/5.6.7.8, rmtPort=46327]
[2017-11-22T08:03:41,682][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery spawning a new thread for connection [rmtAddr=/5.6.7.8,
rmtPort=46327]
[2017-11-22T08:03:41,682][INFO ][tcp-disco-sock-reader-#5][TcpDiscoverySpi]
Started serving remote node connection [rmtAddr=/5.6.7.8:46327,
rmtPort=46327]
[2017-11-22T08:03:42,127][INFO ][tcp-disco-sock-reader-#5][TcpDiscoverySpi]
Finished serving remote node connection [rmtAddr=/5.6.7.8:46327,
rmtPort=46327
[2017-11-22T08:03:46,145][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery accepted incoming connection [rmtAddr=/5.6.7.8, rmtPort=36082]
[2017-11-22T08:03:46,145][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery spawning a new thread for connection [rmtAddr=/5.6.7.8,
rmtPort=36082]
[2017-11-22T08:03:46,146][INFO ][tcp-disco-sock-reader-#6][TcpDiscoverySpi]
Started serving remote node connection [rmtAddr=/5.6.7.8:36082,
rmtPort=36082]
[2017-11-22T08:03:46,540][INFO ][tcp-disco-sock-reader-#6][TcpDiscoverySpi]
Finished serving remote node connection [rmtAddr=/5.6.7.8:36082,
rmtPort=36082
[2017-11-22T08:03:48,934][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery accepted incoming connection [rmtAddr=/5.6.7.8, rmtPort=33224]
[2017-11-22T08:03:48,935][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery spawning a new thread for connection [rmtAddr=/5.6.7.8,
rmtPort=33224]
[2017-11-22T08:03:48,935][INFO ][tcp-disco-sock-reader-#7][TcpDiscoverySpi]
Started serving remote node connection [rmtAddr=/5.6.7.8:33224,
rmtPort=33224]
[2017-11-22T08:03:49,338][INFO ][tcp-disco-sock-reader-#7][TcpDiscoverySpi]
Finished serving remote node connection [rmtAddr=/5.6.7.8:33224,
rmtPort=33224
[2017-11-22T08:03:52,522][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery accepted incoming connection [rmtAddr=/5.6.7.8, rmtPort=33160]
[2017-11-22T08:03:52,522][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery spawning a new thread for connection [rmtAddr=/5.6.7.8,
rmtPort=33160]
[2017-11-22T08:03:52,524][INFO ][tcp-disco-sock-reader-#8][TcpDiscoverySpi]
Started serving remote node connection [rmtAddr=/5.6.7.8:33160,
rmtPort=33160]
[2017-11-22T08:03:52,954][INFO ][tcp-disco-sock-reader-#8][TcpDiscoverySpi]
Finished serving remote node connection [rmtAddr=/5.6.7.8:33160,
rmtPort=33160
[2017-11-22T08:03:56,974][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery accepted incoming connection [rmtAddr=/5.6.7.8, rmtPort=48364]
[2017-11-22T08:03:56,974][INFO ][tcp-disco-srvr-#2][TcpDiscoverySpi] TCP
discovery spawning a new thread for connection [rmtAddr=/5.6.7.8,
rmtPort=48364]
[2017-11-22T08:03:56,975][INFO ][tcp-disco-sock-reader-#9][TcpDiscoverySpi]
Started serving remote node connection [rmtAddr=/5.6.7.8:48364,
rmtPort=48364]
[2017-11-22T08:03:57,368][INFO ][tcp-disco-sock-reader-#9][TcpDiscoverySpi]
Finished serving remote node connection [rmtAddr=/5.6.7.8:48364,
rmtPort=48364
。。。。。
[2017-11-22T08:05:06,021][INFO
][disco-event-worker-#41][GridDiscoveryManager] Topology snapshot [ver=3,
servers=3, clients=0, CPUs=20, heap=16.0GB]
*I wondered why connecting so many port, as my configuration is like*
<bean
class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">
<value>1.2.3.4:47500</value>
<value>5.6.7.8:47500</value>
<value>9.10.11.12:47500</value>
--
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