OpenShift Container Platform nodes are experiencing disk pressure

Solution Verified - Updated -

Issue

  • OpenShift nodes are experiencing disk pressure. This is preventing pods from being scheduled on the nodes.

  • Following command provides the disk pressure info:

    $ oc describe node node1 | grep -i DiskPressure
  DiskPressure          True    Tue, 20 Mar 2018 10:38:02 -0500         Wed, 07 Mar 2018 23:18:46 -0600  KubeletHasDiskPressure           kubelet has disk pressure

  • The file system shows plenty of space available.

  • log entries similar to node has conditions: [DiskPressure]

Environment

  • OpenShift Container Platform (OCP) 3

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