Grafana dashboard: OracleDB Monitoring - performance and table space stats
Description: Use oracledb exporter for oracle database monitoring. Compared with other dashboards, tablespace monitoring is added, which can be expanded to set tablespace alarms

OracleDB Monitoring - performance and table space stats

Use oracledb-exporter to monitor oracle database. Compared to other dashboards, tablespace monitoring is added, which can be expanded to set tablespace alarms;

Credits: 

Based on https://grafana.com/grafana/dashboards/11121

Note:
I translated chinese labels to english and fixed tablespace usage stats which was broken since grafana 7.0 (grafana removed 'timeseries_to_rows' in v7.0 which was fixed by applying following transformations:
1) "Label to fields" (Leave value field option empty)
2) "Group by" (Set 'tablespace' to 'Group by' and value to 'Calculate' (Last (not null)))

Prerequisites:
oracle db, prometheus, oracledb-exporter

oracledb-exporter 
https://github.com/iamseth/oracledb_exporter


Running oracledb-exporter 
- Please check documentation at https://github.com/iamseth/oracledb_exporter

Ensure that the environment variable DATA_SOURCE_NAME is set correctly before starting.

Since oracledb-exporter relies on oracle instantclient, you might also need to set 
LD_LIBRARY_PATH environment variable to instantclient location, i.e.:

export LD_LIBRARY_PATH=/home/DEV/plugins/instantclient_21_1:$LD_LIBRARY_PATH

(if you get errors like oracledb_exporter: error while loading shared libraries: libclntsh.so)


There is also a docker image which provides oracledb-exporter:
https://hub.docker.com/r/iamseth/oracledb_exporter

To run docker image: 

docker pull iamseth/oracledb_exporter 

docker run -d --name oracledb_exporter --restart=always -p 9161:9161 -e DATA_SOURCE_NAME=[db_user]/[db_passwd]@[db_ip]:[db_port]/[SID] iamseth/oracledb_exporter


Check http://localhost:9161/metrics after running to verify metrics are up

Prometheus config to scrape logs from oracledb-exporter

scrape_configs:

  - job_name: 'oracle_metrics'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9161'] 

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      "name": "DS_PROMETHEUS",
      "label": "Prometheus",
      "description": "",
      "type": "datasource",
      "pluginId": "prometheus",
      "pluginName": "Prometheus"
    }
  ],
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      "id": "graph",
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    },
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      "id": "prometheus",
      "name": "Prometheus",
      "version": "1.0.0"
    },
    {
      "type": "panel",
      "id": "singlestat",
      "name": "Singlestat",
      "version": ""
    },
    {
      "type": "panel",
      "id": "table",
      "name": "Table",
      "version": ""
    }
  ],
  "annotations": {
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        "builtIn": 1,
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        "enable": false,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "limit": 100,
        "name": "Annotations & Alerts",
        "showIn": 0,
        "type": "dashboard"
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  },
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  "gnetId": 13555,
  "graphTooltip": 1,
  "id": null,
  "iteration": 1607962848363,
  "links": [
    {
      "asDropdown": true,
      "icon": "external link",
      "tags": [],
      "type": "dashboards"
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  "panels": [
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      "panels": [],
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          "errors": {},
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          "metric": "",
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      "thresholds": "0,1",
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      "type": "singlestat",
      "valueFontSize": "100%",
      "valueMaps": [
        {
          "op": "=",
          "text": "DEAD",
          "value": "0"
        },
        {
          "op": "=",
          "text": "ALIVE",
          "value": "1"
        }
      ],
      "valueName": "current"
    },
    {
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      "colorBackground": false,
      "colorPostfix": true,
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      "colors": [
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      "timeFrom": null,
      "timeShift": null,
      "title": "Process count",
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      },
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          "datasourceErrors": {},
          "errors": {},
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          "intervalFactor": 1,
          "legendFormat": "",
          "metric": "",
          "refId": "A",
          "step": 300
        }
      ],
      "thresholds": "90,95",
      "title": "User commits",
      "type": "singlestat",
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      "valueMaps": [],
      "valueName": "current"
    },
    {
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          },
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            "displayMode": "basic",
            "filterable": false
          },
          "mappings": [],
          "thresholds": {
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              },
              {
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              },
              {
                "color": "#EAB839",
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              },
              {
                "color": "red",
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              }
            ]
          },
          "unit": "percent"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "tablespace"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "mode": "fixed"
                }
              },
              {
                "id": "custom.displayMode",
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              {
                "id": "displayName"
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          {
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              "options": "Value (lastNotNull)"
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              {
                "id": "displayName",
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          }
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          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Tablespace status",
      "transformations": [
        {
          "id": "labelsToFields",
          "options": {}
        },
        {
          "id": "groupBy",
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          }
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            "indexByName": {},
            "renameByName": {
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            }
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      "colorBackground": false,
      "colorValue": true,
      "colors": [
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      ],
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      "decimals": null,
      "editable": true,
      "error": false,
      "fieldConfig": {
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          "custom": {}
        },
        "overrides": []
      },
      "format": "short",
      "gauge": {
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        "minValue": 0,
        "show": false,
        "thresholdLabels": false,
        "thresholdMarkers": true
      },
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        "w": 5,
        "x": 0,
        "y": 4
      },
      "height": "125px",
      "id": 13,
      "interval": "$interval",
      "links": [],
      "mappingType": 1,
      "mappingTypes": [
        {
          "name": "value to text",
          "value": 1
        },
        {
          "name": "range to text",
          "value": 2
        }
      ],
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      "nullPointMode": "connected",
      "nullText": null,
      "postfix": "",
      "postfixFontSize": "50%",
      "prefix": "",
      "prefixFontSize": "80%",
      "rangeMaps": [
        {
          "from": "null",
          "text": "N/A",
          "to": "null"
        }
      ],
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        "full": false,
        "lineColor": "rgb(31, 120, 193)",
        "show": true
      },
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      "targets": [
        {
          "calculatedInterval": "10m",
          "datasourceErrors": {},
          "errors": {},
          "expr": "oracledb_sessions_value{instance=\"$host\",status=\"ACTIVE\",type=\"USER\"}",
          "format": "time_series",
          "instant": false,
          "interval": "$interval",
          "intervalFactor": 1,
          "legendFormat": "",
          "metric": "",
          "refId": "A",
          "step": 60
        }
      ],
      "thresholds": "",
      "timeFrom": null,
      "timeShift": null,
      "title": "Active sessions (USER)",
      "type": "singlestat",
      "valueFontSize": "100%",
      "valueMaps": [],
      "valueName": "current"
    },
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      "colors": [
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        "rgba(237, 129, 40, 0.89)",
        "rgba(50, 172, 45, 0.97)"
      ],
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          "custom": {}
        },
        "overrides": []
      },
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        "thresholdMarkers": true
      },
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        "w": 6,
        "x": 5,
        "y": 4
      },
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      "interval": "$interval",
      "links": [],
      "mappingType": 1,
      "mappingTypes": [
        {
          "name": "value to text",
          "value": 1
        },
        {
          "name": "range to text",
          "value": 2
        }
      ],
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      "nullPointMode": "connected",
      "nullText": null,
      "postfix": "",
      "postfixFontSize": "50%",
      "prefix": "",
      "prefixFontSize": "80%",
      "rangeMaps": [
        {
          "from": "null",
          "text": "N/A",
          "to": "null"
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      ],
      "repeat": null,
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        "lineColor": "rgb(31, 120, 193)",
        "show": true
      },
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      "targets": [
        {
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          "datasourceErrors": {},
          "errors": {},
          "expr": "oracledb_activity_execute_count{instance=\"$host\"}",
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          "intervalFactor": 1,
          "legendFormat": "",
          "metric": "",
          "refId": "A",
          "step": 300
        }
      ],
      "thresholds": "",
      "title": "Execute count",
      "type": "singlestat",
      "valueFontSize": "100%",
      "valueMaps": [],
      "valueName": "current"
    },
    {
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      "colorBackground": false,
      "colorPostfix": true,
      "colorPrefix": true,
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      "colors": [
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      "gauge": {
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        "minValue": 0,
        "show": false,
        "thresholdLabels": false,
        "thresholdMarkers": true
      },
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        "w": 4,
        "x": 11,
        "y": 4
      },
      "id": 69,
      "interval": null,
      "links": [],
      "mappingType": 1,
      "mappingTypes": [
        {
          "name": "value to text",
          "value": 1
        },
        {
          "name": "range to text",
          "value": 2
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      ],
      "maxDataPoints": 100,
      "nullPointMode": "connected",
      "nullText": null,
      "pluginVersion": "6.2.5",
      "postfix": "",
      "postfixFontSize": "70%",
      "prefix": "",
      "prefixFontSize": "70%",
      "rangeMaps": [
        {
          "from": "null",
          "text": "N/A",
          "to": "null"
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      ],
      "sparkline": {
        "fillColor": "rgba(31, 118, 189, 0.18)",
        "full": false,
        "lineColor": "rgb(31, 120, 193)",
        "show": true
      },
      "tableColumn": "",
      "targets": [
        {
          "expr": "oracledb_activity_user_rollbacks{instance=\"$host\"}",
          "format": "time_series",
          "intervalFactor": 1,
          "legendFormat": "{{descr}} - User rollback",
          "refId": "A"
        }
      ],
      "thresholds": "",
      "timeFrom": null,
      "timeShift": null,
      "title": "User rollback",
      "type": "singlestat",
      "valueFontSize": "80%",
      "valueMaps": [
        {
          "op": "=",
          "text": "N/A",
          "value": "null"
        }
      ],
      "valueName": "current"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
      "decimals": null,
      "editable": true,
      "error": false,
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 2,
      "fillGradient": 0,
      "grid": {},
      "gridPos": {
        "h": 6,
        "w": 7,
        "x": 0,
        "y": 7
      },
      "hiddenSeries": false,
      "id": 53,
      "legend": {
        "alignAsTable": false,
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "rightSide": false,
        "show": false,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 2,
      "links": [],
      "nullPointMode": "null",
      "options": {
        "alertThreshold": true
      },
      "percentage": false,
      "pluginVersion": "7.3.5",
      "pointradius": 5,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "calculatedInterval": "2m",
          "datasourceErrors": {},
          "errors": {},
          "expr": "oracledb_wait_time_concurrency{instance=\"$host\"}",
          "format": "time_series",
          "interval": "$interval",
          "intervalFactor": 1,
          "legendFormat": "{{descr}} - Concurrent wait time",
          "metric": "",
          "refId": "A",
          "step": 60
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Concurrent wait time",
      "tooltip": {
        "msResolution": false,
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
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          "max": null,
          "min": 0,
          "show": true
        },
        {
          "format": "short",
          "logBase": 1,
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          "min": 0,
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        }
      ],
      "yaxis": {
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        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
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      "dashLength": 10,
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