Tempo distributed configuration

Grafana Tempo
1

Hi all,

I have tempo distributed deployed on on-premises. My system is Debian GNU/Linux 12 (bookworm).

Here’s my config:

server:
  http_listen_port: 3200
  grpc_listen_port: 9095

distributor:
  ring:
    kvstore:
      store: memberlist

ingester:
  lifecycler:
    join_after: 0s
    ring:
      kvstore:
        store: memberlist
      replication_factor: 3

storage:
  trace:
    backend: local
    local:
      path: /var/lib/tempo/traces
    wal:
      path: /tmp/tempo/wal

memberlist:
  abort_if_cluster_join_fails: false
  bind_port: 7946
  join_members:
    - 10.20.26.94:7946
    - 10.20.26.95:7946
    - 10.20.26.96:7946

# systemctl status tempo.service
● tempo.service - Tempo service
     Loaded: loaded (/etc/systemd/system/tempo.service; enabled; preset: enabled)
     Active: active (running) since Tue 2025-09-16 16:59:16 WIB; 13min ago
   Main PID: 18836 (tempo)
      Tasks: 19 (limit: 19131)
     Memory: 26.9M
        CPU: 3.288s
     CGroup: /system.slice/tempo.service
             └─18836 /usr/bin/tempo -config.file /etc/tempo/config.yml

Sep 16 16:59:17 svr-026094 tempo[18836]: level=info ts=2025-09-16T09:59:17.068523178Z caller=lifecycler.go:677 msg="not loading tokens from file, tokens file path is empty"
Sep 16 16:59:17 svr-026094 tempo[18836]: level=info ts=2025-09-16T09:59:17.068583472Z caller=lifecycler.go:704 msg="instance not found in ring, adding with no tokens" ring=ingester
Sep 16 16:59:17 svr-026094 tempo[18836]: level=info ts=2025-09-16T09:59:17.068685833Z caller=lifecycler.go:546 msg="auto-joining cluster after timeout" ring=ingester
Sep 16 16:59:17 svr-026094 tempo[18836]: level=info ts=2025-09-16T09:59:17.069154915Z caller=worker.go:250 msg="total worker concurrency updated" totalConcurrency=20
Sep 16 16:59:17 svr-026094 tempo[18836]: ts=2025-09-16T09:59:17Z level=info msg="Starting HTTP server for Jaeger Thrift" component=tempo endpoint=localhost:14268
Sep 16 16:59:17 svr-026094 tempo[18836]: ts=2025-09-16T09:59:17Z level=info msg="Starting gRPC server for Jaeger Protobuf" component=tempo endpoint=localhost:14250
Sep 16 16:59:17 svr-026094 tempo[18836]: ts=2025-09-16T09:59:17Z level=info msg="Starting GRPC server" component=tempo endpoint=localhost:4317
Sep 16 16:59:17 svr-026094 tempo[18836]: level=info ts=2025-09-16T09:59:17.0820831Z caller=app.go:211 msg="Tempo started"
Sep 16 17:04:17 svr-026094 tempo[18836]: level=info ts=2025-09-16T10:04:17.069713903Z caller=poller.go:251 msg="blocklist poll complete" seconds=0.000162102
Sep 16 17:09:17 svr-026094 tempo[18836]: level=info ts=2025-09-16T10:09:17.069619295Z caller=poller.go:251 msg="blocklist poll complete" seconds=0.000133363

I have no idea that why port 7946 is not enabled.

# netstat -tuln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 0.0.0.0:3200            0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:1932            0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:9095            0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:14250         0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:14268         0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:4317          0.0.0.0:*               LISTEN
udp        0      0 0.0.0.0:59206           0.0.0.0:*
udp        0      0 0.0.0.0:5353            0.0.0.0:*

Can someone please guide what might be wrong in the config?