https://github.com/percona/postgres_exporter

A PostgresSQL metric exporter for Prometheus
https://github.com/percona/postgres_exporter

pmm

Last synced: 2 months ago
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A PostgresSQL metric exporter for Prometheus

• Host: GitHub
• URL: https://github.com/percona/postgres_exporter
• Owner: percona
• License: apache-2.0
• Fork: true (prometheus-community/postgres_exporter)
• Created: 2018-07-11T12:33:48.000Z (over 6 years ago)
• Default Branch: main
• Last Pushed: 2024-11-07T10:53:22.000Z (2 months ago)
• Last Synced: 2024-11-07T11:38:53.775Z (2 months ago)
• Topics: pmm
• Language: Go
• Size: 15.2 MB
• Stars: 13
• Watchers: 25
• Forks: 12
• Open Issues: 3
• Metadata Files:
  • Readme: README-RDS.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md
  • Codeowners: .github/CODEOWNERS
  • Security: SECURITY.md

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README

        
# Using Postgres-Exporter with AWS:RDS

### When using postgres-exporter with Amazon Web Services' RDS, the

  rolname "rdsadmin" and datname "rdsadmin" must be excluded.

I had success running docker container 'quay.io/prometheuscommunity/postgres-exporter:latest'

with queries.yaml as the PG_EXPORTER_EXTEND_QUERY_PATH.  errors

mentioned in issue#335 appeared and I had to modify the

'pg_stat_statements' query with the following:

`WHERE t2.rolname != 'rdsadmin'`

Running postgres-exporter in a container like so:

  ```

  DBNAME='postgres'

  PGUSER='postgres'

  PGPASS='psqlpasswd123'

  PGHOST='name.blahblah.us-east-1.rds.amazonaws.com'

  docker run --rm --detach \

      --name "postgresql_exporter_rds" \

      --publish 9187:9187 \

      --volume=/etc/prometheus/postgresql-exporter/queries.yaml:/var/lib/postgresql/queries.yaml \

      -e DATA_SOURCE_NAME="postgresql://${PGUSER}:${PGPASS}@${PGHOST}:5432/${DBNAME}?sslmode=disable" \

      -e PG_EXPORTER_EXCLUDE_DATABASES=rdsadmin \

      -e PG_EXPORTER_DISABLE_DEFAULT_METRICS=true \

      -e PG_EXPORTER_DISABLE_SETTINGS_METRICS=true \

      -e PG_EXPORTER_EXTEND_QUERY_PATH='/var/lib/postgresql/queries.yaml' \

      quay.io/prometheuscommunity/postgres-exporter

  ```

### Expected changes to RDS:

+ see stackoverflow notes

  (https://stackoverflow.com/questions/43926499/amazon-postgres-rds-pg-stat-statements-not-loaded#43931885)

+ you must also use a specific RDS parameter_group that includes the following:

  ```

  shared_preload_libraries = "pg_stat_statements,pg_hint_plan"

  ```

+ lastly, you must reboot the RDS instance.