labeldrop is not working

[XooR]

What did you do?

I have set relabel for redis exporter which have extra: addr and alias which I want to remove but with relabel configuration metric stay as it is:

    relabel_configs:
    - action: labeldrop
      regex: 'addr'
    - action: labeldrop
      regex: 'alias'

What did you expect to see?

With metric from exporter:

redis_aof_current_rewrite_duration_sec{addr="redis://localhost:6379",alias=""} -1

To get this metric in prometheus:

redis_aof_current_rewrite_duration_sec{instance="unique-hostname"} -1

What did you see instead? Under which circumstances?

Labels are kept as they are.

Environment

• System information:

Linux 3.10.0-693.17.1.el7.x86_64 x86_64

• Prometheus version:

I tried with prometheus 2.0.0 and 2.2.1 and same thing happen.

prometheus, version 2.2.1 (branch: HEAD, revision: bc6058c81272a8d938c05e75607371284236aadc)
  build user:       root@149e5b3f0829
  build date:       20180314-14:15:45
  go version:       go1.10

• Prometheus configuration file:

global:
  scrape_interval: '15s'
  scrape_timeout: '10s'
  evaluation_interval: '1m'

rule_files: []

scrape_configs:
  - consul_sd_configs:
    - datacenter: dc1
      server: localhost:8500
      services:
      - exporter-redis
    job_name: redis
    relabel_configs:
    - replacement: $1
      separator: ':'
      source_labels:
      - __meta_consul_node
      - __meta_consul_service_port
      target_label: instance
    - regex: .*,cluster=([^,]+),.*
      replacement: $1
      source_labels:
      - __meta_consul_tags
      target_label: cluster
    - action: labeldrop
      regex: 'addr'
    - action: labeldrop
      regex: 'alias'

alerting:
  alert_relabel_configs:
    []
  alertmanagers:
    []

remote_write:
  []

remote_read:
  []

[brian-brazil]

https://www.robustperception.io/relabel_configs-vs-metric_relabel_configs/

It makes more sense to ask questions like this on the prometheus-users mailing list rather than in a GitHub issue. On the mailing list, more people are available to potentially respond to your question, and the whole community can benefit from the answers provided.

[lock]

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