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Deprecate --disable-default-metrics and improve deprecation #864

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Deprecate --disable-default-metrics and improve deprecation #864

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8 changes: 4 additions & 4 deletions README.md
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Expand Up @@ -121,7 +121,7 @@ This will build the docker image as `prometheuscommunity/postgres_exporter:${bra
* `web.telemetry-path`
Path under which to expose metrics. Default is `/metrics`.

* `disable-default-metrics`
* `disable-default-metrics` (DEPRECATED)
Use only metrics supplied from `queries.yaml` via `--extend.query-path`. Default is `false`.

* `disable-settings-metrics`
Expand Down Expand Up @@ -189,7 +189,7 @@ The following environment variables configure the exporter:
* `PG_EXPORTER_WEB_TELEMETRY_PATH`
Path under which to expose metrics. Default is `/metrics`.

* `PG_EXPORTER_DISABLE_DEFAULT_METRICS`
* `PG_EXPORTER_DISABLE_DEFAULT_METRICS` (DEPRECATED)
Use only metrics supplied from `queries.yaml`. Value can be `true` or `false`. Default is `false`.

* `PG_EXPORTER_DISABLE_SETTINGS_METRICS`
Expand All @@ -198,7 +198,7 @@ The following environment variables configure the exporter:
* `PG_EXPORTER_AUTO_DISCOVER_DATABASES` (DEPRECATED)
Whether to discover the databases on a server dynamically. Value can be `true` or `false`. Default is `false`.

* `PG_EXPORTER_EXTEND_QUERY_PATH`
* `PG_EXPORTER_EXTEND_QUERY_PATH` (DEPRECATED)
Path to a YAML file containing custom queries to run. Check out [`queries.yaml`](queries.yaml)
for examples of the format.

Expand Down Expand Up @@ -254,7 +254,7 @@ This feature is deprecated in favor of built-in collector functions. For generic
The -extend.query-path command-line argument specifies a YAML file containing additional queries to run.
Some examples are provided in [queries.yaml](queries.yaml).

### Disabling default metrics
### Disabling default metrics (DEPRECATED)
To work with non-officially-supported postgres versions (e.g. 8.2.15),
or variants of postgres (e.g. Greenplum), you can disable the default metrics with the `--disable-default-metrics`
flag. This removes all built-in metrics, and uses only metrics defined by queries in the `queries.yaml` file you supply
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2 changes: 1 addition & 1 deletion cmd/postgres_exporter/main.go
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Expand Up @@ -41,7 +41,7 @@ var (
configFile = kingpin.Flag("config.file", "Postgres exporter configuration file.").Default("postgres_exporter.yml").String()
webConfig = kingpinflag.AddFlags(kingpin.CommandLine, ":9187")
metricsPath = kingpin.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").Envar("PG_EXPORTER_WEB_TELEMETRY_PATH").String()
disableDefaultMetrics = kingpin.Flag("disable-default-metrics", "Do not include default metrics.").Default("false").Envar("PG_EXPORTER_DISABLE_DEFAULT_METRICS").Bool()
disableDefaultMetrics = kingpin.Flag("disable-default-metrics", "Do not include default metrics. (DEPRECATED)").Default("false").Envar("PG_EXPORTER_DISABLE_DEFAULT_METRICS").Bool()
disableSettingsMetrics = kingpin.Flag("disable-settings-metrics", "Do not include pg_settings metrics.").Default("false").Envar("PG_EXPORTER_DISABLE_SETTINGS_METRICS").Bool()
autoDiscoverDatabases = kingpin.Flag("auto-discover-databases", "Whether to discover the databases on a server dynamically. (DEPRECATED)").Default("false").Envar("PG_EXPORTER_AUTO_DISCOVER_DATABASES").Bool()
queriesPath = kingpin.Flag("extend.query-path", "Path to custom queries to run. (DEPRECATED)").Default("").Envar("PG_EXPORTER_EXTEND_QUERY_PATH").String()
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2 changes: 1 addition & 1 deletion cmd/postgres_exporter/postgres_exporter.go
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Expand Up @@ -604,7 +604,7 @@ func (e *Exporter) checkMapVersions(ch chan<- prometheus.Metric, server *Server)
return fmt.Errorf("Error fetching version string on %q: %v", server, err)
}

if !e.disableDefaultMetrics && semanticVersion.LT(lowestSupportedVersion) {
if semanticVersion.LT(lowestSupportedVersion) {
level.Warn(logger).Log("msg", "PostgreSQL version is lower than our lowest supported version", "server", server, "version", semanticVersion, "lowest_supported_version", lowestSupportedVersion)
}

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4 changes: 2 additions & 2 deletions queries.yaml
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@@ -1,2 +1,2 @@
# Adding queries to this file is deprecated
# Example queries have been transformed into collectors.
# Adding queries to this file is deprecated. Existing queries have been transformed into built-in collectors.
# The use case where custom queries are generating metrics is better served by the https://github.com/burningalchemist/sql_exporter project.