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From Zippy Zeppoli <zippyzepp...@gmail.com>
Subject Re: tomcat7 cluster not communicating [SOLVED]
Date Fri, 08 Mar 2013 22:19:09 GMT
It was AWS security groups.
Bit me.

AWS VLAN != Regular VLAN

On Fri, Mar 8, 2013 at 2:12 PM, Vince Stewart <stewart.vince@gmail.com> wrote:
> if this is a newly installed system with linux in each virtual machine,
> make sure you have registered the IP address (192.168.x.x) in \etc\hosts
> files.
>
>
> On Sat, Mar 9, 2013 at 8:42 AM, Zippy Zeppoli <zippyzeppoli@gmail.com>wrote:
>
>> So, I have a tomcat7 cluster on AWS with a cluster configuration that
>> works on my local VirtualBox cluster.
>>
>> Specs:
>> - Same config.
>> - Firewall turned off on all hosts.
>> - unicast instead of multicast
>>
>> the following commands time out:
>> nc -zv member1  8080
>> nc -zv member1 4110
>>
>> They are listening however:
>> tcp        0      0 0.0.0.0:4110                0.0.0.0:*
>>      LISTEN
>> tcp        0      0 0.0.0.0:8080                0.0.0.0:*
>>      LISTEN
>>
>> tcpdump shows over and over SYN's but no replies on all members:
>> 18:57:23.762712 IP member1: 52548 > 192.168.10.10.g2tag: Flags [S],
>> seq 215397535, win 14600, options [mss 1460,sackOK,TS val 159216257
>> ecr 0,nop,wscale 7], length 0
>>
>>
>> Connecting to any other port from one member to another works fine,
>> for example ssh.
>>
>> So I can't figure out why network communication works between all
>> hosts, tomcat is listening, but trying to connect to the listening
>> port fails.
>>
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>>
>
>
> --
> Vince Stewart

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