Missing metrics for namespace (only batch_parse_errors_total 0 relative metrics appears for it)

[Kumoservices]

Hello

i have setup nginxlog prometheus exporter as well as following the documentation, but i don't see any metrics associated with my namespace/log :

Nginx default log format configuration for access log:
log_format custom '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent '
'"$http_referer" "$http_user_agent" "$http_x_forwarded_for"';

access_log /var/log/nginx/access.log custom;

Prometheus nginx log config file :
listen:
port: 4040
address: "0.0.0.0"

consul:
enable: false

namespaces:

• name: batch
  format: "$remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" "$http_x_forwarded_for""
  source:
  files:
  - /var/log/nginx/access.log
  labels:
  service: "batch"
  env: "preprod"
  histogram_buckets: [.005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10]
  print_log: true

Prometheus nginxlog systemd service status:
prometheus_exporter-nginx.service - nginx prometheus exporter
Loaded: loaded (/etc/systemd/system/prometheus_exporter-nginx.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2023-09-18 12:30:39 CEST; 8min ago
Main PID: 398002 (prometheus-ngin)
Tasks: 8 (limit: 9346)
Memory: 5.6M
CPU: 32ms
CGroup: /system.slice/prometheus_exporter-nginx.service
└─398002 /opt/prometheus_exporter/prometheus-nginxlog-exporter/prometheus-nginxlog-exporter -config-file /etc/prometheus_exporter/config.yml

Sep 18 12:30:39 slcbatch104 systemd[1]: Started nginx prometheus exporter.
Sep 18 12:30:39 slcbatch104 prometheus-nginxlog-exporter[398002]: loading configuration file /etc/prometheus_exporter/config.yml
Sep 18 12:30:39 slcbatch104 prometheus-nginxlog-exporter[398002]: using configuration {Listen:{Port:4040 Address:0.0.0.0} Consul:{Enable:false Address: Datacenter: Scheme: Token: Service>
Sep 18 12:30:39 slcbatch104 prometheus-nginxlog-exporter[398002]: starting listener for namespace batch
Sep 18 12:30:39 slcbatch104 prometheus-nginxlog-exporter[398002]: running HTTP server on address 0.0.0.0:4040

As you see my log has not been seeked ! like this example :

Apr 25 00:50:06 nginx-log-exporter systemd[1]: Started Prometheus Log Exporter.
Apr 25 00:50:06 nginx-log-exporter prometheus-nginxlog-exporter[4561]: loading configuration file /etc/prometheus/nginxlog_exporter.yml
Apr 25 00:50:06 nginx-log-exporter prometheus-nginxlog-exporter[4561]: using configuration {Listen:{Port:4040 Address:0.0.0.0} Consul:{Enable:false Address: Datacenter: Scheme: Toke
Apr 25 00:50:06 nginx-log-exporter prometheus-nginxlog-exporter[4561]: starting listener for namespace myapp
Apr 25 00:50:06 nginx-log-exporter prometheus-nginxlog-exporter[4561]: running HTTP server on address 0.0.0.0:4040
Apr 25 00:50:06 nginx-log-exporter prometheus-nginxlog-exporter[4561]: 2020/04/25 00:50:06 Seeked /var/log/nginx/access.log - &{Offset:0 Whence:2}

When i call the exporter url, i see nothing about "batch" namespace than this :
HELP batch_parse_errors_total Total number of log file lines that could not be parsed
TYPE batch_parse_errors_total counter
batch_parse_errors_total 0

Note too, i try the parm print_log = true in my yaml config file, and seems do nothing...

Has anyone can help me to understand what happened ?

Thanks