fix: remove metric ccp_backrest_last_info_repo_total_size_bytes (#460)

Author: keithf4

changelogs/fragments/459.yml

@@ -0,0 +1,4 @@
+minor_changes:
+ - sql_exporter - Removed the metric `ccp_backrest_last_info_repo_total_size_bytes`. When block incremental backups are enabled, this metric is no longer available from pgBackRest.
+ - postgres_exporter - Removed the metric `ccp_backrest_last_info_repo_total_size_bytes`.
+ - grafana - Removed the `Last Backup Size (Total)` panel from the pgBackRest Grafana dashboard since it was backed by the removed metric.

grafana/postgres/PGBackrest.json

@@ -75,7 +75,7 @@
  "textMode": "auto",
  "wideLayout": true
  },
- "pluginVersion": "10.4.2",
+ "pluginVersion": "10.4.15",
  "targets": [
  {
  "datasource": {
@@ -385,105 +385,6 @@
  "x": 0,
  "y": 11
  },
- "id": 8,
- "options": {
- "legend": {
- "calcs": [],
- "displayMode": "list",
- "placement": "right",
- "showLegend": true
- },
- "tooltip": {
- "mode": "multi",
- "sort": "none"
- }
- },
- "pluginVersion": "10.4.2",
- "targets": [
- {
- "datasource": {
- "type": "prometheus",
- "uid": "${ccp_datasource}"
- },
- "exemplar": true,
- "expr": "ccp_backrest_last_info_repo_total_size_bytes{stanza=\"[[backrest_stanza]]\", repo=\"[[backrest_repo]]\"} + on(job,instance) group_left() (ccp_is_in_recovery_status == 2)",
- "format": "time_series",
- "interval": "",
- "intervalFactor": 1,
- "legendFormat": "{{backup_type}}",
- "refId": "A"
- }
- ],
- "title": "Last Backup Size (Total)",
- "type": "timeseries"
- },
- {
- "datasource": {
- "type": "prometheus",
- "uid": "${ccp_datasource}"
- },
- "fieldConfig": {
- "defaults": {
- "color": {
- "mode": "palette-classic"
- },
- "custom": {
- "axisBorderShow": false,
- "axisCenteredZero": false,
- "axisColorMode": "text",
- "axisLabel": "",
- "axisPlacement": "auto",
- "barAlignment": 0,
- "drawStyle": "line",
- "fillOpacity": 10,
- "gradientMode": "none",
- "hideFrom": {
- "legend": false,
- "tooltip": false,
- "viz": false
- },
- "insertNulls": false,
- "lineInterpolation": "linear",
- "lineWidth": 1,
- "pointSize": 5,
- "scaleDistribution": {
- "type": "linear"
- },
- "showPoints": "never",
- "spanNulls": false,
- "stacking": {
- "group": "A",
- "mode": "none"
- },
- "thresholdsStyle": {
- "mode": "off"
- }
- },
- "links": [],
- "mappings": [],
- "thresholds": {
- "mode": "absolute",
- "steps": [
- {
- "color": "green",
- "value": null
- },
- {
- "color": "red",
- "value": 80
- }
- ]
- },
- "unit": "bytes"
- },
- "overrides": []
- },
- "gridPos": {
- "h": 8,
- "w": 12,
- "x": 12,
- "y": 11
- },
  "id": 9,
  "options": {
  "legend": {
@@ -622,6 +523,6 @@
  "timezone": "",
  "title": "pgBackRest",
  "uid": "QtHwNCrik",
- "version": 1,
+ "version": 2,
  "weekStart": ""
 }

hugo/content/exporter/_index.md

@@ -450,8 +450,6 @@ Backup monitoring only covers pgBackRest at this time. These metrics only need t
 
  * *ccp_backrest_last_info_repo_backup_size_bytes* - Actual size of only this individual backup in the pgbackrest repository
 
- * *ccp_backrest_last_info_repo_total_size_bytes* - Total size of this backup in the pgbackrest repository, including all required previous backups and WAL
-
  * *ccp_backrest_last_info_backup_error* - Count of errors tracked for this backup. Note this does not track incomplete backups, only errors encountered during the backup (checksum errors, file truncation, invalid headers, etc)
 
 #### Per-Database Metrics

postgres_exporter/linux/queries_backrest.yml

@@ -24,7 +24,6 @@ ccp_backrest_last_info:
  , a.backup_data->'database'->>'repo-key' AS repo
  , a.backup_data->>'type' AS backup_type
  , a.backup_data->'info'->'repository'->>'delta' AS repo_backup_size_bytes
- , a.backup_data->'info'->'repository'->>'size' AS repo_total_size_bytes
  , (a.backup_data->'timestamp'->>'stop')::bigint - (a.backup_data->'timestamp'->>'start')::bigint AS backup_runtime_seconds
  , CASE
  WHEN a.backup_data->>'error' = 'true' THEN 1
@@ -64,9 +63,6 @@ ccp_backrest_last_info:
  - repo_backup_size_bytes:
  usage: "GAUGE"
  description: "Actual size of only this individual backup in the pgbackrest repository"
- - repo_total_size_bytes:
- usage: "GAUGE"
- description: "Total size of this backup in the pgbackrest repository, including all required previous backups and WAL"
  - backup_runtime_seconds:
  usage: "GAUGE"
  description: "Total runtime in seconds of this backup"

sql_exporter/common/crunchy_backrest_collector.yml

@@ -21,16 +21,6 @@ metrics:
  - repo
  - backup_type
  query_ref: ccp_backrest_last_info
- - metric_name: ccp_backrest_last_info_repo_total_size_bytes
- type: gauge
- help: "Total size of this backup in the pgbackrest repository, including all required previous backups and WAL"
- values: [repo_total_size_bytes]
- key_labels:
- - config_file
- - stanza
- - repo
- - backup_type
- query_ref: ccp_backrest_last_info
  - metric_name: ccp_backrest_last_info_backup_runtime_seconds
  type: gauge
  help: "Total runtime in seconds of this backup"
@@ -107,7 +97,6 @@ queries:
  , repo
  , backup_type
  , repo_backup_size_bytes
- , repo_total_size_bytes
  , backup_runtime_seconds
  , backup_error
  FROM pgmonitor_ext.ccp_backrest_last_info