[Spread-users] Basic question about communication between daemons

[Mr antback]

Hi again,

I still have not resolved the problem. I have tested with the multicast
address 224.0.0.1, with 227.227.227.227 <http://227.227.227.227:4803/> and
with the broadcast address 10.113.101.255 <http://10.113.101.255:4803/> with
the same result.

When I execute

$ ping -b 10.113.101.255
WARNING: pinging broadcast address
PING 10.113.101.255 (10.113.101.255) 56(84) bytes of data.
64 bytes from 10.113.101.165: icmp_seq=1 ttl=64 time=0.115 ms
64 bytes from 10.113.101.164: icmp_seq=1 ttl=64 time=0.263 ms (DUP!)

$ ping -b 224.0.0.1
PING 224.0.0.1 (224.0.0.1) 56(84) bytes of data.
64 bytes from 10.113.101.165: icmp_seq=1 ttl=64 time=0.125 ms
64 bytes from 10.113.101.164: icmp_seq=1 ttl=64 time=0.298 ms (DUP!)

I see that the ping is working so no firewall is blocking the requests.

Any idea? I'm stuck

On Fri, Aug 8, 2008 at 6:23 PM, John Robinson <jr at vertica.com> wrote:

> Another thing to check is that the broadcast address and mask are correct
> for the attached network.  Check with route or netstat -r or ifconfig or
> ipconfig (depending on you platform).
>
> /jr
> ---
> John Lane Schultz wrote:
>
>> No, they should hear each others' traffic.  More than likely your daemons
>> are not finding one another.  The most likely reason I can think of for
>> that
>> is that your network isn't allowing broadcast.  Try a multicast address
>> instead:
>>
>> Spread_Segment  227.227.227.227:4803 {
>>  host1     10.113.101.165  host2     10.113.101.164
>> }
>>
>> Cheers!
>>
>> ---
>> John Lane Schultz
>> Spread Concepts LLC
>> Phn: 443 838 2200 ________________________________________
>> From: spread-users-bounces at lists.spread.org
>> [mailto:spread-users-bounces at lists.spread.org] On Behalf Of Mr antback
>> Sent: Friday, August 08, 2008 8:09 AM
>> To: spread-users at lists.spread.org
>> Subject: [Spread-users] Basic question about communication between daemons
>>
>> Hi all,
>> I have some doubts about how spread works. I have two machines
>> spread.conf (same on both nodes):
>> Spread_Segment  10.113.101.255:4803 {
>>  host1     10.113.101.165  host2     10.113.101.164
>> }
>>
>> Trying to comunicate both, I run this command on host2:
>> goodfood at host2>  ./spuser -s 4803
>> Spread library version is 4.0.0
>> User: connected to 4803 with private group #user#host2
>>
>> and join the group "monitor". Now here is the doubt. If on the host1 I
>> connect like this:
>>
>> goodfood at host1> ./spuser -s 4803
>>
>> joining the group "monitor" and sending a message, host2 doesn't receive
>> the
>> message.
>> but instead if I connect like this:
>> goodfood at host1> ./spuser -s 4803 at host2
>>
>> It works. Is this the expected behaviour? I supposed that every daemon
>> communicates with each others. Where could it be the problem?
>> Thanks
>>
>>
>> _______________________________________________
>> Spread-users mailing list
>> Spread-users at lists.spread.org
>> http://lists.spread.org/mailman/listinfo/spread-users
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.spread.org/pipermail/spread-users/attachments/20080818/539f2dee/attachment.html