[Linux-cluster] sharing same ip with 2 services on two nodes

[ESGLinux]

Hi,

thanks for your answer

I suspected  so,

can I say as an axiom: One service needs One IP? ( One man, One vote ;-) )

and if is this true, has it sense to configure ip resources as shared? it
must be better to configure as a private resource, isnt it?

Greetings,

ESG

2009/4/17 Juan Ramon Martin Blanco <robejrm at gmail.com>

>
>
> On Fri, Apr 17, 2009 at 12:57 PM, ESGLinux <esggrupos at gmail.com> wrote:
>
>> Hello all,
>>
>> I have a doubt about using the same service ip with two diferent services
>> in two diferent nodes of my two-nodes-cluster.
>
>
>>
>> I´ll explain it a litle:
>>
>> I have two services: BBDD and HTTPD
>>
>> I have configured a shared IP: 192.168.1.100
>>
> Hi,
> You _must_ use a different  IP, cannot have the same IP on different
> machines.
>
> Greetings,
> Juanra
>
>>
>> two nodes: node1 and node2.
>>
>> When I run the two services on node1 all runs ok. If I try to relocate one
>> service, with
>>
>> clusvcadm -r BBDD -m node2
>>
>> it fails with the error:
>>  in.rdiscd[4805]: setsockopt (IP_ADD_MEMBERSHIP): Address already in use
>>  in.rdiscd[4805]: Failed joining addresses
>>
>> I suposse that is because one services is on node1 with the ip and the
>> other trys to run in node2 with the same ip.
>>
>> So my question is if it is possible to run the services this way or I need
>> an ip per service?
>> (I have tested that with 2 diferent ips I can run BBDD on node1 an HTTPD
>> on node2)
>>
>> Thanks in advance
>>
>> ESG
>>
>>
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>>
>
>
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