RHOCP 4.x cluster goes down due to tainted master/s

Solution Verified - Updated -

Issue

  • Red Hat OpenShift Container Platform 4.7 cluster and API server went down as all master nodes were tainted with NoExecute
$ oc adm taint nodes <masternode> elasticsearch=node:NoExecute
  • oc utility not working hence not able to remove tainted by below commands.
$ oc adm taint nodes <masternode> elasticsearch=NoExecute-

OR

$ oc adm taint nodes <masternode> elasticsearch-

Environment

  • Red Hat OpenShift Container Platform.
    • 4.7

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