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Anyone can share me the config of signoz and k8s-i...
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t
Anyone can share me the config of signoz and k8s-infra helm value. I try config otelCollectorEndpoint using http port 4318. But the otel can not push the metrics to this endpoint
n
Could you please share the URL for the endpoint here
t
The custom values. for collector install in cluster A using signoz chart
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global:
  storageClass: storage1
clickhouse:
  enabled: true
  zookeeper:
    enabled: true
    image:
    replicaCount: 3
  persistence:
    size: 200Gi
signoz:
  name: "signoz"
  replicaCount: 1
  image:
    registry: docker.io
    repository: signoz/signoz
    tag: v0.82.1
    pullPolicy: IfNotPresent
  persistence:
    enabled: true
    size: 50Gi
otelCollector:
  ingress:
    enabled: true
    kubernetes.io/ingress.class: nginx
    hosts:
      - host: otelcollector.dev.wiki
        paths:
          - path: /
            pathType: ImplementationSpecific
            port: 4318
    tls:
     - secretName: otel-tls
       hosts:
         - otelcollector.dev.wiki
and collector with chart k8s-infra install in other k8s cluster (cluster B)
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global:
  storageClass: storage1
  clusterName: "k8s-prod"
  deploymentEnvironment: "production"
  cloud: other
otelCollectorEndpoint: otelcollector.dev.wiki:443
insecureSkipVerify: true
n
why are you using port 443?
t
I want using HTTP
not using GRPC, because I need open GRPC on cluster A
so want to using 443 to replace that
n
For using the HTTP protocol, you should use port 4318, not 443
t
have you see I config ingress ?
that point to port 4318 already
n
grpc port: 4317 http port: 4318
t
So what is ingress mention?
in signoz chart
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# Configuration for ports
  ports:
    otlp:
      # -- Whether to enable service port for OTLP gRPC
      enabled: true
      # -- Container port for OTLP gRPC
      containerPort: 4317
      # -- Service port for OTLP gRPC
      servicePort: 4317
      # -- Node port for OTLP gRPC
      nodePort: ""
      # -- Protocol to use for OTLP gRPC
      protocol: TCP
    otlp-http:
      # -- Whether to enable service port for OTLP HTTP
      enabled: true
      # -- Container port for OTLP HTTP
      containerPort: 4318
      # -- Service port for OTLP HTTP
      servicePort: 4318
      # -- Node port for OTLP HTTP
      nodePort: ""
      # -- Protocol to use for OTLP HTTP
      protocol: TCP
default config for otlp-http is 4318 and already enabled
then I create ingress to mapping that pod to domain
so ingress only listen 80/443, so here I use 443
Then in other cluster, I using chart k8s-infra and config otelCollectorEndpoint to this domain
n
Got it!!
What's the exact error you're seeing while trying to push the metrics
t
that error log on otel agent
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{
  "level": "warn",
  "ts": 1748590001.1368558,
  "caller": "grpc@v1.66.0/clientconn.go:1379",
  "msg": "[core] [Channel #1 SubChannel #8]grpc: addrConn.createTransport failed to connect to {Addr: \"10.10.10.12:443\", ServerName: \"otelcollector.dev.wiki:443\", }. Err: connection error: desc = \"error reading server preface: http2: frame too large\"",
  "grpc_log": true
}
n
try with increasing the 
max_recv_msg_size_mib
setting on the receiver: https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/configgrpc/README.md
t
looks like otel-agent is still trying to push the request to grpc endpoint (but it is https)
your config use for GRPC, you can see in default values of signoz chart
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config:
    receivers:
      otlp:
        protocols:
          grpc:
            endpoint: 0.0.0.0:4317
            max_recv_msg_size_mib: 16
          http:
            endpoint: 0.0.0.0:4318
n
Hey @Thomas E. Dewey, let me check once and i'll get back to you
I'll try to reproduce this and see if i'm facing this
t
ok thank you
@Nagesh Bansal any update for this issue ?
a
i have experienced this issue, for your k8s infra otel agent and deployment, you need to expose the port 4317, the grpc port is the only work that will work
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global:
  storageClass: storage1
  clusterName: "k8s-prod"
  deploymentEnvironment: "production"
  cloud: other
otelCollectorEndpoint: otelcollector-gprc.dev.wiki:443
insecureSkipVerify: true
see my own config, so regardless, you need to expose the gprc port for the k8-infra otel agent and deployment, the only time it differs is when you enable self-telemetry in your k8-infra, then you can specify the exposed otel-http
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resource "kubectl_manifest" "ingress_otel_grpc_signoz" {
  yaml_body = <<-EOF
apiVersion: <http://networking.k8s.io/v1|networking.k8s.io/v1>
kind: Ingress
metadata:
  name: signoz-otel-collector-grpc-ingress
  namespace: ${kubernetes_namespace.platform.id}
  annotations:
    <http://kubernetes.io/ingress.class|kubernetes.io/ingress.class>: nginx
    <http://nginx.ingress.kubernetes.io/grpc-backend|nginx.ingress.kubernetes.io/grpc-backend>: "true"
    <http://nginx.ingress.kubernetes.io/enable-access-log|nginx.ingress.kubernetes.io/enable-access-log>: "false"
    <http://nginx.ingress.kubernetes.io/backend-protocol|nginx.ingress.kubernetes.io/backend-protocol>: "GRPC"
    <http://nginx.ingress.kubernetes.io/proxy-buffer-size|nginx.ingress.kubernetes.io/proxy-buffer-size>: "128k"
    <http://nginx.ingress.kubernetes.io/ssl-redirect|nginx.ingress.kubernetes.io/ssl-redirect>: "false"
    <http://nginx.ingress.kubernetes.io/proxy-body-size|nginx.ingress.kubernetes.io/proxy-body-size>: "0"
    <http://nginx.ingress.kubernetes.io/proxy-connect-timeout|nginx.ingress.kubernetes.io/proxy-connect-timeout>: "300"
    <http://nginx.ingress.kubernetes.io/proxy-read-timeout|nginx.ingress.kubernetes.io/proxy-read-timeout>: "300"
    <http://nginx.ingress.kubernetes.io/proxy-send-timeout|nginx.ingress.kubernetes.io/proxy-send-timeout>: "300"
    <http://nginx.ingress.kubernetes.io/upstream-keepalive-timeout|nginx.ingress.kubernetes.io/upstream-keepalive-timeout>: "600"
    <http://nginx.ingress.kubernetes.io/upstream-keepalive-requests|nginx.ingress.kubernetes.io/upstream-keepalive-requests>: "100"
spec:
  rules:
  - host: <http://otelcollector-gprc.mydomain.com|otelcollector-gprc.mydomain.com>
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: signoz-otel-collector
            port:
              number: 4317
      - path: /opentelemetry.proto.collector.logs.v1.LogsService/Export
        pathType: ImplementationSpecific
        backend:
          service:
            name: signoz-otel-collector
            port:
              number: 4317
      - path: /opentelemetry.proto.collector.metrics.v1.MetricsService/Export
        pathType: ImplementationSpecific
        backend:
          service:
            name: signoz-otel-collector
            port:
              number: 4317
      - path: /opentelemetry.proto.collector.trace.v1.TraceService/Export
        pathType: ImplementationSpecific
        backend:
          service:
            name: signoz-otel-collector
            port:
              number: 4317
   EOF
}
t
@Abdulmalik Salawu So that mean I need expose grpc port on otel-agent, not expose on signoz(otel-colletor) ? For my understand, the work flow is that
can you share your workflow
a
no its on the signoz(otel-colletor) that you will expose the grpc port, so that your cluster b(otel-agent) will use it
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