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> Description of problem:
The pcs status output is getting out slowly with a higher number of nodes in the cluster, taking as long as 5 seconds on a 16-node clustere. This is because pcs is checking the states linearly one node after another. We could parallelize this process to make it significantly faster.
> Version-Release number of selected component (if applicable):
pcs-0.9.137-13.el7
> Results:
[root@virt-016 ~]# time pcs status pcsd virt-017
virt-017: Online
real 0m0.633s
user 0m0.322s
sys 0m0.075s
[root@virt-016 ~]# time pcs status pcsd virt-03{0..5}
virt-030: Online
virt-031: Online
virt-032: Online
virt-033: Online
virt-034: Online
virt-035: Online
real 0m1.778s
user 0m0.345s
sys 0m0.072s
[root@virt-016 ~]# time pcs status pcsd
virt-016: Online
virt-017: Online
virt-018: Online
virt-023: Online
virt-024: Online
virt-027: Online
virt-028: Online
virt-029: Online
virt-030: Online
virt-031: Online
virt-032: Online
virt-033: Online
virt-034: Online
virt-035: Online
virt-036: Online
virt-037: Online
real 0m6.032s
user 0m0.478s
sys 0m0.084s