mysql  overview
msyql Dashboard  from mysqld-exporter
msyql Dashboard 
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      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
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      "tooltip": {
        "msResolution": false,
        "shared": true,
        "sort": 0,
        "value_type": "cumulative"
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      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
      "decimals": 2,
      "description": "**Table Locks**\n\nMySQL takes a number of different locks for varying reasons. In this graph we see how many Table level locks MySQL has requested from the storage engine. In the case of InnoDB, many times the locks could actually be row locks as it only takes table level locks in a few specific cases.\n\nIt is most useful to compare Locks Immediate and Locks Waited. If Locks waited is rising, it means you have lock contention. Otherwise, Locks Immediate rising and falling is normal activity.",
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      "error": false,
      "fill": 2,
      "fillGradient": 0,
      "grid": {},
      "gridPos": {
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        "w": 12,
        "x": 12,
        "y": 38
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      "hiddenSeries": false,
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      "legend": {
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        "avg": true,
        "current": false,
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        "min": true,
        "rightSide": false,
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        "sortDesc": true,
        "total": false,
        "values": true
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      "lines": true,
      "linewidth": 2,
      "links": [],
      "nullPointMode": "null",
      "options": {
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      "pointradius": 5,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
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          "calculatedInterval": "2m",
          "datasourceErrors": {},
          "errors": {},
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          "format": "time_series",
          "interval": "$interval",
          "intervalFactor": 1,
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          "refId": "A",
          "step": 20
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          "datasourceErrors": {},
          "errors": {},
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      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "MySQL Table Locks",
      "tooltip": {
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        "shared": true,
        "sort": 0,
        "value_type": "individual"
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      "panels": [],
      "repeat": null,
      "title": "Network",
      "type": "row"
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      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
      "decimals": 2,
      "description": "**MySQL Network Traffic**\n\nHere we can see how much network traffic is generated by MySQL. Outbound is network traffic sent from MySQL and Inbound is network traffic MySQL has received.",
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      "error": false,
      "fill": 6,
      "fillGradient": 0,
      "grid": {},
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        "x": 0,
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      "stack": true,
      "steppedLine": false,
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          "datasourceErrors": {},
          "errors": {},
          "expr": "rate(mysql_global_status_bytes_received{instance=\"$host\"}[$interval]) or irate(mysql_global_status_bytes_received{instance=\"$host\"}[5m])",
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          "intervalFactor": 1,
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          "interval": "$interval",
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      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "MySQL Network Traffic",
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        "shared": true,
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      "dashLength": 10,
      "dashes": false,
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      "description": "**MySQL Network Usage Hourly**\n\nHere we can see how much network traffic is generated by MySQL per hour. You can use the bar graph to compare data sent by MySQL and data received by MySQL.",
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      "error": false,
      "fill": 6,
      "fillGradient": 0,
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      "stack": true,
      "steppedLine": false,
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          "errors": {},
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          "intervalFactor": 1,
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      "type": "row"
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      "error": false,
      "fill": 6,
      "fillGradient": 0,
      "grid": {},
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        "x": 0,
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      "linewidth": 2,
      "links": [
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          "title": "Detailed descriptions about metrics",
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          "stack": false
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      "spaceLength": 10,
      "stack": true,
      "steppedLine": false,
      "targets": [
        {
          "expr": "node_memory_MemTotal_bytes{instance=\"$host\"}",
          "format": "time_series",
          "intervalFactor": 2,
          "legendFormat": "System Memory",
          "refId": "G",
          "step": 4
        },
        {
          "expr": "mysql_global_status_innodb_page_size{instance=\"$host\"} * on (instance) mysql_global_status_buffer_pool_pages{instance=\"$host\",state=\"data\"}",
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        },
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          "expr": "mysql_global_status_innodb_mem_dictionary{instance=\"$host\"}",
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        },
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          "step": 20
        },
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          "expr": "mysql_global_variables_query_cache_size{instance=\"$host\"}",
          "format": "time_series",
          "interval": "$interval",
          "intervalFactor": 1,
          "legendFormat": "Query Cache Size",
          "refId": "C",
          "step": 20
        },
        {
          "expr": "mysql_global_status_innodb_mem_adaptive_hash{instance=\"$host\"}",
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          "legendFormat": "Adaptive Hash Index Size",
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        },
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          "expr": "mysql_global_variables_tokudb_cache_size{instance=\"$host\"}",
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      "thresholds": [],
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      "timeRegions": [],
      "timeShift": null,
      "title": "MySQL Internal Memory Overview",
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        "shared": true,
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