Hi,
Thanks for the response. The default token is 5000 that comes with
openais-0.80.5. 5000 seems to big! Here are the default parameters that
comes with openais-0.80.5 downloaded from
http://download.opensuse.org/repositories/server:/ha-clustering/CentOS_5/i386/.
I want to detect the node power fail within 500 msec. A small percent of
detection error is OK. Do you think it's possible to detect it within
500msec?
Thanks
hj
----------- default parameters comes with openais-0.80.5--------------
# How long before declaring a token lost (ms)
token: 5000
# How many token retransmits before forming a new configuration
token_retransmits_before_loss_const: 10
# How long to wait for join messages in the membership protocol (ms)
join: 1000
# How long to wait for consensus to be achieved before starting a
new round of membership configuration (ms)
consensus: 2500
# Turn off the virtual synchrony filter
vsftype: none
# Number of messages that may be sent by one processor on receipt of
the token
max_messages: 20
# Stagger sending the node join messages by 1..send_join ms
send_join: 45
On Tue, Dec 15, 2009 at 3:37 PM, Steven Dake <[email protected]> wrote:
> On Tue, 2009-12-15 at 14:49 -0700, hj lee wrote:
> > Hi,
> >
> > I have a simple two nodes clusters with pacemaker-1.0.5 and
> > openais-0.80.5. If I remove power cable immediately at one of two
> > nodes, how long does the other node take to detect one of node went
> > away? With the default openais parameters comes with openais-0.80.5,
> > it takes 5 sec from power off to promote(I have a simple multi-state
> > clone running). I want to shorten this time as much as I can, what is
> > the best way to shorten this time? What kind parameter I can adjust to
> > reduce this time?
> >
>
> The "token" parameter controls how long it takes to detect a failure
> within the network. It should default to 1000msec (1 second) but can be
> run at lower values depending on your system.
>
> I am not certain why you see 5 seconds for full recovery with pacemaker.
> Andrew may be able to address.
>
> Regards
> -steve
> > Thanks
> > hj
> > _______________________________________________
> > Openais mailing list
> > [email protected]
> > https://lists.linux-foundation.org/mailman/listinfo/openais
>
>
--
Dream with longterm vision!
kerdosa
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