On 14/06/17 21:52 +0200, Jan Pokorný wrote: > On 15/06/17 00:12 +0530, ashutosh tiwari wrote: >> Also wanted to know that is there a way to add multiple resources in a go, >> presently we are doing the resource addition serially. >> >> the command we use to create resources is >> "pcs resource create resname ocf:abc:IPaddr ip=x.x.x.x cidr_netmask=32 op >> monitor interval="0s"." > > Yes, there's a way to instruct pcs to add resources in one go, at > least from the perspective of the cluster (which is what matters), > despite it compounds several manipulation steps (but they are just > an accumulative preparation for the final propagation): > > pcs cluster cib tmp-cib.xml > pcs -f tmp-cib.xml resource create ... > pcs -f ... > pcs cluster cib-push tmp-cib.xml --config > # tmp-cib.xml temporary file can be deleted now > >> Also we add some some colocation constraint. > > You can enque such change before the final push using: > > pcs -f constraint colocation add ...
[oops] pcs -f tmp-cib.xml constraint colocation add ... > > as well. > > > To overcome multiple parallel sources of change mutually overwriting > the desired final configurations in the "critical section" (between > the initial fetch of the current cib and propagation of the > predestined after-changes monolithic configuration), newer pcs [1] > supports pushing just the differentials, but I am mentioning that > more for the sake of completeness. > > [1] http://lists.clusterlabs.org/pipermail/users/2017-February/005103.html > (see second item) -- Jan (Poki)
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