hysyeah: fix:hpaController set hpa DesiredReplicas=0 in corner case when can not compute or get metrics

JobBuild
75b293db
07-30 01:21
102728
07-29 11:35
cb326e48
07-29 11:34
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pull-kubernetes-dependencies 1420917374822912000 1420709224593231872
pull-kubernetes-e2e-gce-100-performance 1420917375229759488 1420709224882638848
pull-kubernetes-e2e-gce-ubuntu-containerd 1420917374873243648 1420709224622592000
pull-kubernetes-e2e-kind 1420917374965518336 1420709224693895168
pull-kubernetes-e2e-kind-ipv6 1420917374990684160 1420709224731643904
pull-kubernetes-integration 1420917374906798080 1420709224660340736
pull-kubernetes-node-crio-e2e 1420917375150067712 1420709224840695808
pull-kubernetes-node-e2e-containerd 1420917375120707584 1420709224815529984
pull-kubernetes-typecheck 1420917375686938624 1420709225427898368
pull-kubernetes-unit 1420917375070375936 1420709224790364160
pull-kubernetes-verify 1420917377339494400 1420709227105619968
pull-kubernetes-verify-govet-levee 1420917376521605120 1420709226270953472