when I am trying to install a chart pods are getting stuck at pending state.

describe pods give below error

Node-Selectors:  ads.open.com/elasticsearch=true
Tolerations:     node.kubernetes.io/not-ready:NoExecute for 300s
                 node.kubernetes.io/unreachable:NoExecute for 300s
                 open.com/elasticsearch=true:NoSchedule
Events:
  Type     Reason            Age        From               Message
  ----     ------            ----       ----               -------
  Warning  FailedScheduling  <unknown>  default-scheduler  0/6 nodes are available: 1 Insufficient cpu, 5 node(s) didn't match node selector.

when I describe node which it should get schedule due to label

Labels:             ads.open.com/elasticsearch=true
                    beta.kubernetes.io/arch=amd64
                    beta.kubernetes.io/os=linux
                    failure-domain.beta.kubernetes.io/zone=nova
                    kubernetes.io/arch=amd64
                    kubernetes.io/hostname=xx.xxx.xx.xx
                    kubernetes.io/os=linux
                    node-role.kubernetes.io/worker=true

Taints:             openet.com/elasticsearch=true:NoSchedule

Capacity:
  attachable-volumes-cinder:  256
  cpu:                        8
Allocatable:
  attachable-volumes-cinder:  256
  cpu:                        7600m