Get "readiness probe failed" error when deploy to K8S

Elastic Stack Elasticsearch
1

I am trying to deploy Elasticsearch cluster to AWS EKS. I have this spec:

apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch
metadata:
  name: datasource
spec:
  version: 7.14.0
  nodeSets:
  - name: node
    count: 3
    config:
      xpack.security.http.ssl.enabled: false
      xpack.security.transport.ssl.enabled: false
      xpack.security.enabled: false
    podTemplate:
      spec:
        initContainers:
        - name: sysctl
          securityContext:
            privileged: true
          command: ['sh', '-c', 'sysctl -w vm.max_map_count=262144']
        containers:
        - name: elasticsearch
          readinessProbe:
            exec:
              command:
              - bash
              - -c
              - /mnt/elastic-internal/scripts/readiness-probe-script.sh
            failureThreshold: 3
            initialDelaySeconds: 10
            periodSeconds: 12
            successThreshold: 1
            timeoutSeconds: 12
          env:
          - name: READINESS_PROBE_TIMEOUT
            value: "30"
    volumeClaimTemplates:
    - metadata:
        name: elasticsearch-data
      spec:
        accessModes:
          - ReadWriteOnce
        storageClassName: ebs-sc
        resources:
          requests:
            storage: 1024Gi

But after apply this spec, I got this error message:

{"type": "server", "timestamp": "2021-10-11T05:04:50,470Z", "level": "INFO", "component": "o.e.c.r.a.AllocationService", "cluster.name": "datasource", "node.name": "datasource-es-node-0", "message": "Cluster health status changed from [YELLOW] to [GREEN] (reason: [shards started [[.kibana][0]]]).", "cluster.uuid": "pzd0YJS8RQyVlimhmN-p9A", "node.id": "vDvCWlv_SOOfecYzY8ZoAw"  }
{"timestamp": "2021-10-11T05:04:52+00:00", "message": "readiness probe failed", "curl_rc": "35"}
{"timestamp": "2021-10-11T05:04:57+00:00", "message": "readiness probe failed", "curl_rc": "35"}
{"timestamp": "2021-10-11T05:05:02+00:00", "message": "readiness probe failed", "curl_rc": "35"}
{"timestamp": "2021-10-11T05:05:07+00:00", "message": "readiness probe failed", "curl_rc": "35"}
{"timestamp": "2021-10-11T05:05:12+00:00", "message": "readiness probe failed", "curl_rc": "35"}
{"timestamp": "2021-10-11T05:05:17+00:00", "message": "readiness probe failed", "curl_rc": "35"}
{"timestamp": "2021-10-11T05:05:22+00:00", "message": "readiness probe failed", "curl_rc": "35"}

You can see it shows GREEN first but show readiness probe failed afterward. How can I solve this issue?

2

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