Open
Description
Component(s)
receiver/mongodb
What happened?
Description
A scraper error is being emitted while collecting index stats on the database, reporting an Location40602 error. Disabling the by default enabled index metrics did not resolve the problem.
Steps to Reproduce
Run the collector and scrape mongodb metrics. Every scrape reports an error.
Expected Result
Not getting this error.
Actual Result
Feb 25 16:47:17 mongodb otelcol-contrib[1111752]: 2025-02-25T16:47:17.804Z error scraperhelper/obs_metrics.go:56 Error scraping metrics {"kind": "receiver", "name": "mongodb", "data_type": "metrics", "scraper": "mongodb", "error": "failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline"}
Collector version
v0.120.1
Environment information
Environment
OS: Ubuntu 20.04.6
MongoDB: v7.0.2 Community
OpenTelemetry Collector configuration
receivers:
mongodb:
hosts:
- endpoint: localhost:27017
collection_interval: 60s
initial_delay: 1s
tls:
insecure: true
insecure_skip_verify: true
metrics:
mongodb.index.access.count:
enabled: false
mongodb.index.count:
enabled: false
mongodb.index.size:
enabled: false
hostmetrics:
collection_interval: 30s
scrapers:
cpu: {}
disk: {}
load: {}
filesystem: {}
memory: {}
network: {}
paging: {}
process:
mute_process_name_error: true
mute_process_exe_error: true
mute_process_io_error: true
processes: {}
prometheus:
config:
global:
scrape_interval: 30s
scrape_configs:
- job_name: otel-collector-binary
static_configs:
- targets: ['localhost:8888']
processors:
batch:
send_batch_size: 1000
timeout: 10s
resourcedetection:
detectors: [env, system]
timeout: 2s
system:
hostname_sources: [os]
extensions:
health_check: {}
pprof:
zpages: {}
exporters:
otlp:
endpoint: "ingest.[...].net:4317"
tls:
insecure: true
debug:
service:
telemetry:
metrics:
address: 0.0.0.0:8888
extensions: [health_check, pprof, zpages]
pipelines:
metrics:
receivers: [mongodb]
processors: [batch, resourcedetection]
exporters: [otlp]
metrics/internal:
receivers: [prometheus, hostmetrics]
processors: [resourcedetection, batch]
exporters: [otlp]Log output
Feb 25 16:47:17 mongodb otelcol-contrib[1111752]: 2025-02-25T16:47:17.804Z error scraperhelper/obs_metrics.go:56 Error scraping metrics {"kind": "receiver", "name": "mongodb", "data_type": "metrics", "scraper": "mongodb", "error": "failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline; failed to fetch index stats metrics: (Location40602) $indexStats is only valid as the first stage in a pipeline"}Additional context
No response