Log Analytics Board
Log volume, error trends, top errors, and source breakdown — all in one dashboard.
Tile 1: Total Log Volume (Single Value)
fetch logs | summarize cnt=count()
Tile 2: Error Count (Single Value)
fetch logs | filter loglevel == "ERROR" | summarize cnt=count()
Tile 3: Log Volume by Level (Stacked Area Chart)
fetch logs
| makeTimeseries count=count(), by:{loglevel}
Tile 4: Error Trend (Line Chart)
fetch logs
| filter loglevel == "ERROR"
| makeTimeseries errors=count()
Tile 5: Top Error Messages (Table)
fetch logs
| filter loglevel == "ERROR"
| summarize cnt=count(), by:{content}
| sort cnt desc
| limit 10
Tile 6: Volume by Source (Bar Chart)
fetch logs
| summarize cnt=count(), by:{log.source}
| sort cnt desc
| limit 10
Tile 7: Errors by Host (Table)
fetch logs
| filter loglevel == "ERROR"
| summarize cnt=count(), by:{dt.entity.host}
| sort cnt desc
💡 The error trend tile is the most important — it shows whether errors are increasing, stable, or decreasing. Pair it with the top error messages table to know what's failing.
🛠 Try it: Open a Notebook → run fetch logs | makeTimeseries count=count(), by:{loglevel} → click "Open with → Dashboards" to instantly add this as a dashboard tile. Repeat for each query on this page to build a complete log dashboard.