[Linux-HA] Antw: Re: Q: ping (ocf:pacemaker:ping) from specific address?
Hi!
After option=-I addr 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; otherwise it
uses ping.
Also, $OCF_RESKEY_options is only used for ping, but not for fping!
Needless to say that thje options of ping and fping cannot be compared.
Welcome to the mess!
At the very least the documentation should be updated!
Regards,
Ulrich
Lars Ellenberg lars.ellenb...@linbit.com schrieb am 04.09.2014 um 15:28
in
Nachricht 20140904132826.GH23497@soda.linbit:
On Thu, Sep 04, 2014 at 02:32:14PM +0200, Ulrich Windl wrote:
Hi!
I'm using ocf:pacemaker:ping to ping some specific address. The requirement
is that a specific source address (that is on a local interface) is being
used to ping a destination. So if the resource moves between nodes, the same
source address shall be used.
The address to use is a secondary adress on interface bond0, like
bond0:xyz.
I can spacify -I bond0 and -I bond0:xyz, but the latter seems to be
ignores, as if I just said -I bond0. Ping is from
iputils-ss021109-292.28.1
(SLES11 SP3).
I had this requirement for HP-UX years ago, and the solution was to install
a
special local ping that allowed to select the source address.
So my preferences are:
1) Get it done with the software I have
ping -w 2 -c 3 -I 127.0.0.1 8.8.8.8
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument
PING 8.8.8.8 (8.8.8.8) from 127.0.0.1 : 56(84) bytes of data.
--- 8.8.8.8 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1008ms
ping -w 2 -c 3 -I 10.11.12.13 8.8.8.8
bind: Cannot assign requested address
ping -w 2 -c 3 -I 10.43.9.55 8.8.8.8
PING 8.8.8.8 (8.8.8.8) from 10.43.9.55 : 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=41 time=27.4 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=41 time=27.4 ms
--- 8.8.8.8 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 27.405/27.430/27.456/0.167 ms
Does that help?
--
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com
DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
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[Linux-HA] Q: dampening explained?
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? What changes? Please explain! (pacemaker-1.1.10-0.15.25 of SLES11 SP3) Regards, Ulrich ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
[Linux-HA] [RFC] Organizing HA Summit 2015
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 to have a 2 days dedicated HA summit the 4th and the 5th of February. The goal for this meeting is to, beside to get to know each other and all social aspect of those events, tune the directions of the various HA projects and explore common areas of improvements. I am also very open to the idea of extending to 3 days, 1 one dedicated to customers/users and 2 dedicated to developers, by starting the 3rd. Thoughts? Fabio PS Please hit reply all or include me in CC just to make sure I'll see an answer :) [1] http://devconf.cz/ ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
Re: [Linux-HA] [Pacemaker] [RFC] Organizing HA Summit 2015
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 in Red Hat Brno offices. My suggestion would be to have a 2 days dedicated HA summit the 4th and the 5th of February. The goal for this meeting is to, beside to get to know each other and all social aspect of those events, tune the directions of the various HA projects and explore common areas of improvements. I am also very open to the idea of extending to 3 days, 1 one dedicated to customers/users and 2 dedicated to developers, by starting the 3rd. Thoughts? Fabio PS Please hit reply all or include me in CC just to make sure I'll see an answer :) [1] http://devconf.cz/ I think this is a good idea. 3 days may be a good idea, as well. I think I would be more useful trying to bring the user's perspective more so than a developer's. So on that, I would like to propose a discussion on merging some of the disparate lists, channels, sites, etc. to help simplify life for new users looking for help from or to wanting to join the HA community. I also understand that Fabio will buy the first round of drinks. :) -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education? ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
Re: [Linux-HA] Q: dampening explained?
On 8 Sep 2014, at 5:19 pm, Ulrich Windl ulrich.wi...@rz.uni-regensburg.de 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 wait (dampening) in seconds further changes occur Who is waiting? attrd before it updates the cib What changes? other processes or nodes calling attrd_updater Please explain! (pacemaker-1.1.10-0.15.25 of SLES11 SP3) Regards, Ulrich ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems signature.asc Description: Message signed with OpenPGP using GPGMail ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
Re: [Linux-HA] Q: dampening explained?
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 may take a while for things to settle down into the final state. What you don't want to do is start to move resources, then discover that they didn't need to move at all, or that you're moving them to the wrong place -- when if you'd just waited a little bit for the dust to settle you would have done something much more efficiently - or perhaps nothing at all. On 09/08/2014 04:25 PM, Andrew Beekhof wrote: On 8 Sep 2014, at 5:19 pm, Ulrich Windl ulrich.wi...@rz.uni-regensburg.de 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 wait (dampening) in seconds further changes occur Who is waiting? attrd before it updates the cib What changes? other processes or nodes calling attrd_updater Please explain! (pacemaker-1.1.10-0.15.25 of SLES11 SP3) Regards, Ulrich ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
