K8s Elasticsearch with filebeat is keeping 'not ready' after rebooting
Issue
There is an issue with elasticsearch readiness probe when running on single replica cluster.
Warning Unhealthy 91s (x14 over 3m42s) kubelet Readiness probe failed: Waiting for elasticsearch cluster to become ready (request params: "wait_for_status=green&timeout=1s" )Cluster is not yet ready (request params: "wait_for_status=green&timeout=1s" )Solution
As mentioned here by @adinhodovic
If your running a single replica cluster add the following helm value:
clusterHealthCheckParams: "wait_for_status=yellow&timeout=1s"Your status will never go green with a single replica cluster.
The following values should work:
replicas: 1minimumMasterNodes: 1clusterHealthCheckParams: 'wait_for_status=yellow&timeout=1s'