es-exporter log failed to get cluster info connect: connection refused

[ccnh0827]

log：
time=2025-04-08T02:43:03.759Z level=INFO source=clusterinfo.go:211 msg="triggering initial cluster info call"
time=2025-04-08T02:43:03.759Z level=INFO source=clusterinfo.go:182 msg="providing consumers with updated cluster info label"
time=2025-04-08T02:43:03.759Z level=ERROR source=clusterinfo.go:258 msg="failed to get cluster info" err="Get "http://elastic:***@10.0.157.166:9200/\": dial tcp 10.0.157.166:9200: connect: connection refused"
time=2025-04-08T02:43:03.759Z level=ERROR source=clusterinfo.go:185 msg="failed to retrieve cluster info from ES" err="Get "http://elastic:***@10.0.157.166:9200/\": dial tcp 10.0.157.166:9200: connect: connection refused"
time=2025-04-08T02:43:13.760Z level=INFO source=main.go:246 msg="initial cluster info call timed out"
time=2025-04-08T02:43:13.761Z level=INFO source=tls_config.go:347 msg="Listening on" address=[::]:9114
time=2025-04-08T02:43:13.761Z level=INFO source=tls_config.go:350 msg="TLS is disabled." http2=false address=[::]:9114

config：
apiVersion: apps/v1
kind: Deployment
metadata:
name: elasticsearch-exporter
labels:
app: elasticsearch-exporter
spec:
replicas: 1
selector:
matchLabels:
app: elasticsearch-exporter
template:
metadata:
labels:
app: elasticsearch-exporter
spec:
containers:
- name: elasticsearch-exporter
image: 10.0.157.132:5000/elasticsearch-exporter:v4
ports:
- containerPort: 9114
env:
- name: ES_URL
value: "http://elastic:9P9sShzdnfnQ81Ve-7Ea@10.0.157.166:9200"

elasticsearch version is 8.6.2

in pod can curl elasticsearch like is：

my question is where i did wrong ？ thank you！

[sysadmind]

It's not immediately clear to me what you're doing wrong, but the logs seem to indicate a problem connecting to elasticsearch (connection refused). This could be firewall related or some other network problem. Were you running the exporter before the elasticsearch cluster was ready? It looks like you are using kubernetes so it could be something in the networking there as well. I would focus on the network connection, trying to make this as simple as possible and eliminate as many pieces as possible until you can isolate the problem.