Hi,
There is only one network adapter per machine and IP addresses are static.
Both box are in the same Active Directory domain. A WINS server is configured,
but I do not use any host name in the config files - only IP addresses.
What seems strange to me is that, when using JGroups, the controllers look like
they have at least some sort of communication as they detect that a new
controller is added to the group and try to check VDB config with each other.
When I kill controller #2, controller #1 will resume and go back to "ready,
listening to requests" (the same happens with controller #2 if I kill
controller #1). But, I do not have the full understanding of the inner workings
of the controllers: communication might happen at different levels through
different channels, some working, some other blocked.
Cheers,
Lionel
Emmanuel Cecchet <[EMAIL PROTECTED]> a écrit : Lionel,
Do you have multiple network adapters on your machines?
Are your IP addresses assigned by DHCP or statically?
Are you using a Directory Server, a WINS server or some other Windows
specific resolution mechanism?
Thanks for your feedback,
Emmanuel
> I had read the requirements and checked with our netadmins: both
> controllers are on the same subnet, connected to a switch and the
> admins say that nothing should block the traffic, even in multicast (I
> specifically asked for that).
>
> The controllers are hosted on 2 windows box (1 win2k and 1 XP) with no
> firewall. Their network config seems pretty standard to me.
>
> I am at loss...
>
> I saw that appia.xml has 6 templates of channel config. The default
> one is activated (tcp_sequencer). Is another channel config more
> likely to succeed or is more advisable?
>
>
> */Nuno Carvalho /* a écrit :
>
>
> On Dec 12, 2006, at 11:38 , Lionel Capiez wrote:
>
>> Thanks,
>>
>> When I turn off JGroups debug logs, it looks like both
>> controllers try to exchange a message and then just hang (if I
>> kill one of them, the other one will detect it resume action -
>> i.e. go to "listening mode" - sorry my wording is not accurate).
>> You can see this in the attached logs.
>>
>> I also tried to swich to appia. Both controllers wait in "ready,
>> listening to requests" mode. They do not reach the "Checking
>> virtual database configuration" stage. So I guess they do not see
>> each other.
>>
>> For both JGroups and Appia, I used the default config files
>> provided with Sequoia 2.10.2. From the docs, I had gotten the
>> idea that they were good to use. Did I miss something? Are some
>> settings to be changed?
>>
>>
>
> This could be something in your network configuration. How are
> your machines connected? The machines are just connected to a
> switch, or there is a WAN or a firewall? Do you have multicast
> enabled between the controllers?
>
> The default setting are for a fully connected cluster with
> multicast enabled. You have several tips in the
> Sequoia installation guide ("Network Requirements" and "controller
> group communication configuration files" sections).
>
> If you still have problems on using Sequoia with Appia, please
> don't hesitate to send your feedback to the Appia mailing list.
>
> Cheers,
> --
> Nuno Carvalho
> University of Lisbon, Portugal
> http://dialnp.di.fc.ul.pt
>
>
>
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>
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--
Emmanuel Cecchet
Chief Scientific Officer, Continuent
Blog: http://emanux.blogspot.com/
Open source: http://www.continuent.org
Corporate: http://www.continuent.com
Skype: emmanuel_cecchet
Cell: +33 687 342 685
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