Using "shadow cib" in crmsh looks like a good idea, but it doesn't work with node attributes set into "status" section of Pacemaker config. I wonder it it is possible to make it work that way.
Ken, >> start dampening timer Could you please elaborate more on this. I don't get how I can set this timer. Do I need to set this timer for each node? Thank you, Kostia On Mon, Nov 21, 2016 at 9:30 AM, Ulrich Windl < [email protected]> wrote: > >>> Ken Gaillot <[email protected]> schrieb am 18.11.2016 um 16:17 in > Nachricht > <[email protected]>: > > On 11/18/2016 08:55 AM, Kostiantyn Ponomarenko wrote: > >> Hi folks, > >> > >> Is there a way to set a node attribute to the "status" section for few > >> nodes at the same time? > >> > >> In my case there is a node attribute which allows some resources to > >> start in the cluster if it is set. > >> If I set this node attribute for say two nodes in a way - one and then > >> another, than these resources are not distributed equally between these > >> two nodes. That because Pacemaker picks the first node to with this > >> attribute is set and immediately starts all allowed resources on it. And > >> this is not the behavior i would like to get. > >> > >> Thank you, > >> Kostia > > > > Not that I know of, but it would be a good feature to add to > > attrd_updater and/or crm_attribute. > > With crm (shell) you don't have transactions for node attributes, but for > the configuration. So if you add a location restriction preventing any > resources on your nodes, then enable the nodes, and then delete the > location restrictions in one transaction, you might get what you want. It's > not elegant, but itt ill do. > > To the crm shell maintainer: Is is difficult to build transactions to node > status changes? The problem I see is this: For configuration you always > have transactions (requiring "commit), but for nodes you traditionally have > non (effects are immediate). So you'd need a thing like "start transaction" > which requires a "commit" or some kind of abort later. > > I also don't know whether a "shadow CIB" would help for the original > problem. > > Ulrich > > > > > You can probably hack it with a dampening value of a few seconds. If > > your rule checks for a particular value of the attribute, set all the > > nodes to a different value first, which will write that value and start > > the dampening timer. Then set all the attributes to the desired value, > > and they will get written out together when the timer expires. > > > > _______________________________________________ > > Users mailing list: [email protected] > > http://clusterlabs.org/mailman/listinfo/users > > > > Project Home: http://www.clusterlabs.org > > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > > Bugs: http://bugs.clusterlabs.org > > > > > > _______________________________________________ > Users mailing list: [email protected] > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org >
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