Getting permission denied error for process scraper

[saiganeshkABI]

Component(s)

receiver/hostmetrics

What happened?

Description

The process scraper is returning Permission denied error after including additional metrics

Steps to Reproduce

Add process scraper in hostmetrics receiver

Expected Result

Process metrics should be exported

Actual Result

Permission denied error for reading the process

Collector version

0.104.0

Environment information

Environment

OS: ubuntu
Compiler(if manually compiled): go1.22.2

OpenTelemetry Collector configuration

receivers:
  otlp:
    protocols:
      http:
        endpoint: localhost:4318
      grpc:
        endpoint: localhost:4317
  hostmetrics:
    collection_interval: 30s 
    scrapers: 
      cpu:
        metrics:
          system.cpu.utilization:
            enabled: true
      memory:
        metrics:
          system.memory.utilization:
            enabled: true
      disk:
      load:
      process:
        metrics:
          process.cpu.utilization:
            enabled: true
          process.disk.operations:
            enabled: true
      filesystem:
        metrics:
          system.filesystem.inodes.usage:
            enabled: false
          system.filesystem.utilization:
            enabled: true

exporters:
  datadog:
    api:
      key: $APIKEY
      site: datadoghq.com

service:
  extensions: [basicauth/otlp]
  pipelines:
    metrics:
      receivers: [otlp,hostmetrics]
      exporters: [datadog]
    traces:
      receivers: [otlp]
      exporters: [datadog]
      # exporters: [debug, otlp]
    logs:
      receivers: [otlp,filelog]
      exporters: [datadog]

Log output

2024-08-09T07:45:02.311Zerrorscraperhelper/scrapercontroller.go:197Error scraping metrics{"kind": "receiver", "name": "ho
stmetrics", "data_type": "metrics", "error": "error reading process executable for pid 1: readlink /proc/1/exe: permission denied; error
 reading process executable for pid 2: readlink /proc/2/exe: permission denied; error reading process executable for pid 3: readlink /pr
oc/3/exe: permission denied; error reading process executable for pid 4: readlink /proc/4/exe: permission denied; error reading process 
executable for pid 5: readlink /proc/5/exe: permission denied; error reading process executable for pid 6: readlink /proc/6/exe: permiss
ion denied; error reading process executable for pid 8: readlink /proc/8/exe: permission denied;

Additional context

No response

[github-actions]

Pinging code owners:

• receiver/hostmetrics: @dmitryax @braydonk

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