Steve
Thank you (again) for your response. We, in Motorola, appreciate it very
much.
Regarding your answers:
We are not if-downing our NICs, we just remove network modules ("rmmod
xxxxx.ko) for example. Does ais service affected from it?
In regards to 0.80.3:
We really want to upgrade to later versions, but correct me if I'm
wrong: in order to upgrade we need:
1) Support AMF_B.
2) Modify our configuration files, and the concept.
3) Our services are initiated by a service supervision which we are
using ("run-it") and I'm not sure we can afford putting the effort on
Do we have to do all those changes? Can we upgrade without making any
(or small) modifications in our code?
Thanks,
Daniel.
-----Original Message-----
From: Steven Dake [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 07, 2007 9:11 AM
To: Cohen-Sason Daniel-BDC021
Cc: [EMAIL PROTECTED]
Subject: Re: OpenAis 0.79: "token" and "downcheck" meaning
Forgive me for not responding earlier - I have been ill.
If you mean that you unload the NIC driver I have not thoroughly tested
such operation with openais. Instead it is designed to check that an
interface has been ifconfig ethX down within the downcheck interval. if
that happens, openais forms singleton rings on all nodes and binds to
the 127.0.0.1 ip. I believe token should be greater then downcheck, or
it is possible you would have a token loss before you had a downcheck
notification which would result in some unknown undesireable behavior.
In regards to the version your using, if you plan to deploy I would
definitely recommend updating to 0.80.3 or better yet the latest branch
of whitetank. Whitetank is highly stable and includes thousands of
hours of quality engineering work to improve stability over version
0.79. 0.79 unfortunately has many protocol bugs and other bugs which
may result in poor behavior.
I hope that answers your questions.
Regards
-steve
On Tue, 2007-11-06 at 17:32 +0200, Cohen-Sason Daniel-BDC021 wrote:
> Hello Steve.
>
> We are trying to understand why changing those fields in our
> configuration of the cluster had a positive affect on the behavior of
> our system while removing a Linux network module.
>
>
>
> We changed the defaults to:
>
>
>
> token: 20000
>
> downcheck: 20000
>
>
>
> And we are not sure what the affect of those fields is.
>
> When making a separate change of each field, we didn't have that
> "positive" effect - only when making both changes.
>
>
>
> Please advice,
>
>
>
> Daniel.
>
>
>
>
>
>
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