Hazelcast collides with JGroups

[Ralf Edmund]

I tried to switch from a JGroups based communication and distribution
mechanism to Hazelcast. To gain some experience with the productive
use of Hazelcast, i tried to switch only a limited part of my
application to a distributed hashmap implementation.

Even if i do not use Hazelcast - just creating the hashmap - i get
Exceptions from JGroups:

23.02.2010 16:05:31 com.hazelcast.impl.Node <init>
INFO: Hazelcast 1.8.1-SNAPSHOT (20100219) starting at
Address[172.31.0.42:5701]
23.02.2010 16:05:31 com.hazelcast.impl.Node <init>
INFO: Copyright (C) 2008-2010 Hazelcast.com
2010-02-23 16:05:32,571 ERROR org.jgroups.protocols.UDP - failed
sending message to null (114 bytes)
java.lang.Exception: dest=/224.0.0.19:45566 (117 bytes)
at org.jgroups.protocols.UDP._send(UDP.java:337)
at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:287)
at org.jgroups.protocols.TP.doSend(TP.java:1186)
at org.jgroups.protocols.TP.send(TP.java:1176)
at org.jgroups.protocols.TP.down(TP.java:943)
at org.jgroups.protocols.Discovery.down(Discovery.java:321)
at org.jgroups.protocols.MERGE2.down(MERGE2.java:184)
at org.jgroups.protocols.FD_SOCK.down(FD_SOCK.java:406)
at org.jgroups.protocols.VERIFY_SUSPECT.down(VERIFY_SUSPECT.java:95)
at org.jgroups.protocols.pbcast.NAKACK.send(NAKACK.java:650)
at org.jgroups.protocols.pbcast.NAKACK.down(NAKACK.java:440)
at org.jgroups.protocols.UNICAST.down(UNICAST.java:440)
at org.jgroups.protocols.pbcast.STABLE$1.run(STABLE.java:643)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:
441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ScheduledThreadPoolExecutor
$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor
$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207)
at java.util.concurrent.ThreadPoolExecutor
$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor
$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:637)
Caused by: java.io.IOException: Invalid argument
at java.net.PlainDatagramSocketImpl.send(Native Method)
at java.net.DatagramSocket.send(DatagramSocket.java:612)
at org.jgroups.protocols.UDP._send(UDP.java:328)
... 20 more
2010-02-23 16:05:34,150 ERROR org.jgroups.protocols.UDP - failed
sending message to null (50 bytes)
java.lang.Exception: dest=/224.0.0.19:45566 (53 bytes)
at org.jgroups.protocols.UDP._send(UDP.java:337)
at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:287)
at org.jgroups.protocols.TP.doSend(TP.java:1186)
at org.jgroups.protocols.TP.send(TP.java:1176)
at org.jgroups.protocols.TP.down(TP.java:943)
at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:
218)
at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:212)
at org.jgroups.protocols.PingSender.run(PingSender.java:76)
at java.lang.Thread.run(Thread.java:637)
Caused by: java.io.IOException: Invalid argument
at java.net.PlainDatagramSocketImpl.send(Native Method)
at java.net.DatagramSocket.send(DatagramSocket.java:612)
at org.jgroups.protocols.UDP._send(UDP.java:328)
... 8 more
2010-02-23 16:05:35,154 ERROR org.jgroups.protocols.UDP - failed
sending message to null (50 bytes)
java.lang.Exception: dest=/224.0.0.19:45566 (53 bytes)
at org.jgroups.protocols.UDP._send(UDP.java:337)
at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:287)
at org.jgroups.protocols.TP.doSend(TP.java:1186)
at org.jgroups.protocols.TP.send(TP.java:1176)
at org.jgroups.protocols.TP.down(TP.java:943)
at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:
218)
at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:212)
at org.jgroups.protocols.PingSender.run(PingSender.java:76)
at java.lang.Thread.run(Thread.java:637)
Caused by: java.io.IOException: Invalid argument
at java.net.PlainDatagramSocketImpl.send(Native Method)
at java.net.DatagramSocket.send(DatagramSocket.java:612)
at org.jgroups.protocols.UDP._send(UDP.java:328)
... 8 more
23.02.2010 16:05:36 com.hazelcast.impl.Node join
INFO:

Members [1] {
Member [172.31.0.42:5701] this
}

2010-02-23 16:05:36,530 INFO
org.springframework.security.intercept.AbstractSecurityInterceptor -
Validated configuration attributes
2010-02-23 16:05:36,757 INFO
com.bearingpoint.core.execute.ExecutionService - Starting execution
service thread pool with 1 threads.
DEBUG: JavaMail version 1.4.2
DEBUG: successfully loaded resource: /META-INF/
javamail.default.providers

23.02.2010 16:05:40 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
23.02.2010 16:05:40 org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
23.02.2010 16:05:40 org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/40 config=null
23.02.2010 16:05:40 org.apache.catalina.startup.Catalina start
INFO: Server startup in 25957 ms
2010-02-23 16:05:44,163 ERROR org.jgroups.protocols.UDP - failed
sending message to null (50 bytes)
java.lang.Exception: dest=/224.0.0.19:45566 (53 bytes)
at org.jgroups.protocols.UDP._send(UDP.java:337)
at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:287)
at org.jgroups.protocols.TP.doSend(TP.java:1186)
at org.jgroups.protocols.TP.send(TP.java:1176)
at org.jgroups.protocols.TP.down(TP.java:943)
at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:
218)
at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:212)
at org.jgroups.protocols.PingSender.run(PingSender.java:76)
at java.lang.Thread.run(Thread.java:637)
Caused by: java.io.IOException: Invalid argument
at java.net.PlainDatagramSocketImpl.send(Native Method)
at java.net.DatagramSocket.send(DatagramSocket.java:612)
at org.jgroups.protocols.UDP._send(UDP.java:328)
... 8 more
2010-02-23 16:05:45,188 ERROR org.jgroups.protocols.UDP - failed
sending message to null (50 bytes)
java.lang.Exception: dest=/224.0.0.19:45566 (53 bytes)
at org.jgroups.protocols.UDP._send(UDP.java:337)
at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:287)
at org.jgroups.protocols.TP.doSend(TP.java:1186)
at org.jgroups.protocols.TP.send(TP.java:1176)
at org.jgroups.protocols.TP.down(TP.java:943)
at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:
218)
at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:212)
at org.jgroups.protocols.PingSender.run(PingSender.java:76)
at java.lang.Thread.run(Thread.java:637)
Caused by: java.io.IOException: Invalid argument
at java.net.PlainDatagramSocketImpl.send(Native Method)
at java.net.DatagramSocket.send(DatagramSocket.java:612)
at org.jgroups.protocols.UDP._send(UDP.java:328)
... 8 more

The hazecast configurations does not make use of multicast
communication. Instead three IP-Member addresses are provided using an
<interfaces> elment.

What's the cause of this problem? How can i prevent those Exceptions?

Regards,
Ralf E. Stranzenbach

[Ian Cass]

try adding

-Djava.net.preferIPv4Stack=true

and try again.

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[Ralf Edmund]

Thank you for your advice. The application now starts without issuing
those exceptions.