39 lines
1.5 KiB
Markdown
39 lines
1.5 KiB
Markdown
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# Using Postgres-Exporter with AWS:RDS
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### When using postgres-exporter with Amazon Web Services' RDS, the
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rolname "rdsadmin" and datname "rdsadmin" must be excluded.
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I had success running docker container 'wrouesnel/postgres_exporter:latest'
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with queries.yaml as the PG_EXPORTER_EXTEND_QUERY_PATH. errors
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mentioned in issue#335 appeared and I had to modify the
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'pg_stat_statements' query with the following:
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`WHERE t2.rolname != 'rdsadmin'`
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Running postgres-exporter in a container like so:
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```
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DBNAME='postgres'
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PGUSER='postgres'
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PGPASS='psqlpasswd123'
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PGHOST='name.blahblah.us-east-1.rds.amazonaws.com'
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docker run --rm --detach \
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--name "postgresql_exporter_rds" \
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--publish 9187:9187 \
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--volume=/etc/prometheus/postgresql-exporter/queries.yaml:/var/lib/postgresql/queries.yaml \
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-e DATA_SOURCE_NAME="postgresql://${PGUSER}:${PGPASS}@${PGHOST}:5432/${DBNAME}?sslmode=disable" \
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-e PG_EXPORTER_EXCLUDE_DATABASES=rdsadmin \
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-e PG_EXPORTER_DISABLE_DEFAULT_METRICS=true \
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-e PG_EXPORTER_DISABLE_SETTINGS_METRICS=true \
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-e PG_EXPORTER_EXTEND_QUERY_PATH='/var/lib/postgresql/queries.yaml' \
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wrouesnel/postgres_exporter
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```
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### Expected changes to RDS:
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+ see stackoverflow notes
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(https://stackoverflow.com/questions/43926499/amazon-postgres-rds-pg-stat-statements-not-loaded#43931885)
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+ you must also use a specific RDS parameter_group that includes the following:
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```
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shared_preload_libraries = "pg_stat_statements,pg_hint_plan"
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```
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+ lastly, you must reboot the RDS instance.
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