How to change Elasticsearch pod readiness probe timeout period

Issue

• Our Elasticsearch pods in openshift-logging project are not starting up because of the failing readiness probe.
• This behaviour can be:
  • permanent (pods will not ever start)
  • temporary (need to restart pods multiple times to make them start properly)

• We are seeing following error messages:

  Timed out waiting for Elasticsearch to be ready HTTP/1.1 503 Service Unavailable