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Re: ERXJGroupsSynchronizer & VPS
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Re: ERXJGroupsSynchronizer & VPS


  • Subject: Re: ERXJGroupsSynchronizer & VPS
  • From: Fabian Peters <email@hidden>
  • Date: Thu, 31 Jan 2013 16:24:23 +0000

Hi Kevin,

Does the VPS environment support multicast? If not, you may have to see whether jgroups can be configured to use unicast only.

Fabian

Am 31.01.2013 um 14:30 schrieb Kevin Hinkson:

> Hi,
>
> I am currently trying to configure ERXJGroupsSynchronizer for broadcasting EO change notifications between instances (currently) on the same machine. In the dev environment this appears to work fine. Live is a different story.
>
> The live Linode VPS has a public and a private ip address and I've set the bind address for the private network. When the app launches I get the following error
>
> ---------------------------------------------------------
> GMS: address is <private ip address>:42199 (cluster=<ClusterName>)
> ---------------------------------------------------------
> ERROR 14:20:40 (org.jgroups.protocols.UDP:1205)  -failed sending message to null (44 bytes)
> java.lang.Exception: dest=/230.0.0.1:9753 (47 bytes)
>        at org.jgroups.protocols.UDP._send(UDP.java:361)
>        at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:302)
>        at org.jgroups.protocols.TP.doSend(TP.java:1486)
>        at org.jgroups.protocols.TP.send(TP.java:1476)
>        at org.jgroups.protocols.TP.down(TP.java:1197)
>        at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:278)
>        at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:259)
>        at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:406)
>        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>        at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
>        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
>        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:165)
>        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:267)
>        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>        at java.lang.Thread.run(Thread.java:679)
> Caused by: java.io.IOException: Invalid argument
>        at java.net.PlainDatagramSocketImpl.send(Native Method)
>        at java.net.DatagramSocket.send(DatagramSocket.java:629)
>        at org.jgroups.protocols.UDP._send(UDP.java:352)
>        ... 15 more
>
> Beyond the initial setup I am completely lost. Multicasting is not something I understand at all. I would imagine that I would need to tweak the network settings to open up a port, or maybe multicasting on the private network won't work? I'm really not sure. Does anyone have any pointers for how to do this or if I am doing it wrong?
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      • From: Kevin Hinkson <email@hidden>
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