On k8s, elasticsearch events return degrated status, but all is green on cluster

Elastic Stack Elasticsearch
1

Hello,

We use ECK with latest Helm version and Elastisearch 8.12. But this seems to be not relevant to version, there were a similar case without any response : Get events for Elasticsearch cluster health degraded , but cluster is green

Our setup says :

$ kubectl get events | grep "Unhealthy"
39s         Warning   Unhealthy                elasticsearch/elasticsearch                                                      Elasticsearch cluster health degraded

but the cluster health returns all is good.

$ kubectl get elastic
NAME                                                       HEALTH   NODES   VERSION   PHASE   AGE
elasticsearch.elasticsearch.k8s.elastic.co/elasticsearch   green    17      8.12.0    Ready   193d

NAME                                                HEALTH   NODES   VERSION   AGE
kibana.kibana.k8s.elastic.co/eck-stack-eck-kibana   green    2       8.12.0    193d

NAME                                                HEALTH   AVAILABLE   EXPECTED   VERSION   AGE
agent.agent.k8s.elastic.co/eck-agent-aws-specific   green    1           1          8.12.0    27d
agent.agent.k8s.elastic.co/eck-stack-eck-agent      green    3           3          8.12.0    187d
agent.agent.k8s.elastic.co/fleet-server             green    1           1          8.12.0    187d

How to understand why the "Unhealthy" is reported on k8s events ?

2

:up: No one knows :cry: ?