fix: remove metric ccp_backrest_last_info_repo_total_size_bytes

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