README-RDS.md

Using Postgres-Exporter with AWS:RDS

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

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

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 \
    -e DATA_SOURCE_NAME="postgresql://${PGUSER}:${PGPASS}@${PGHOST}:5432/${DBNAME}?sslmode=disable" \
    -e PG_EXPORTER_EXCLUDE_DATABASES=rdsadmin \
    -e PG_EXPORTER_DISABLE_DEFAULT_METRICS=false \
    -e PG_EXPORTER_DISABLE_SETTINGS_METRICS=false \
    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.