[Linux-HA] Antw: Re: Q: dampening explained?

2014-09-08 Thread Ulrich Windl
>>> Andrew Beekhof schrieb am 09.09.2014 um 00:25 in >>> Nachricht : > On 8 Sep 2014, at 5:19 pm, Ulrich Windl > wrote: > >> Hi! >> >> I remember having asked this before, but I'l still missing a good > explanation: >> >> What are the precise semantics of "dampening" (attrd_updater -d)? >>

Re: [Linux-HA] Q: dampening explained?

2014-09-08 Thread Alan Robertson
As an example, if you're pinging two nodes, and both go away, they almost certainly won't go appear to go away at the exactly same time - because of the timing of when the pings occurred. In addition other machines have similar issues and are even more decoupled from each other. So, in effect it

Re: [Linux-HA] Q: dampening explained?

2014-09-08 Thread Andrew Beekhof
On 8 Sep 2014, at 5:19 pm, Ulrich Windl wrote: > Hi! > > I remember having asked this before, but I'l still missing a good explanation: > > What are the precise semantics of "dampening" (attrd_updater -d)? > > The manual page just says: > -d, --delay=value > The time to wa

Re: [Linux-HA] [Pacemaker] [RFC] Organizing HA Summit 2015

2014-09-08 Thread Digimer
On 08/09/14 06:30 AM, Fabio M. Di Nitto wrote: All, it's been almost 6 years since we had a face to face meeting for all developers and vendors involved in Linux HA. I'd like to try and organize a new event and piggy-back with DevConf in Brno [1]. DevConf will start Friday the 6th of Feb 2015

[Linux-HA] [RFC] Organizing HA Summit 2015

2014-09-08 Thread Fabio M. Di Nitto
All, it's been almost 6 years since we had a face to face meeting for all developers and vendors involved in Linux HA. I'd like to try and organize a new event and piggy-back with DevConf in Brno [1]. DevConf will start Friday the 6th of Feb 2015 in Red Hat Brno offices. My suggestion would be

[Linux-HA] Q: dampening explained?

2014-09-08 Thread Ulrich Windl
Hi! I remember having asked this before, but I'l still missing a good explanation: What are the precise semantics of "dampening" (attrd_updater -d)? The manual page just says: -d, --delay=value The time to wait (dampening) in seconds further changes occur Who is waiting? Wh

[Linux-HA] Antw: Re: Q: ping (ocf:pacemaker:ping) from specific address?

2014-09-08 Thread Ulrich Windl
Hi! After option="-I " did not work I had a look into the RA: It's a big mess! --- ping_update() { if have_binary fping; then fping_check active=$? else ping_check active=$? fi [...] --- So if the system has an fping (mine has!), the RA uses fping; ot