Queries for the LAQueryLogs table

Article
09/17/2024

For information on using these queries in the Azure portal, see Log Analytics tutorial. For the REST API, see Query.

Most Requested ResourceIds

Most queried resources over the last 24 hours.

LAQueryLogs
| extend reqContext = parse_json(RequestContext)
| extend datasources = array_concat(reqContext["resources"], reqContext["workspaces"], reqContext["applications"])
| mv-expand datasources
| summarize reqCount = count() by tostring(datasources)
| order by reqCount desc

Unauthorized Users

Get a list of unauthorized users with their request count in last 24 hours.

LAQueryLogs
| where ResponseCode == "403"
| summarize reqCount = count() by AADObjectId
| order by reqCount desc

Throttled Users

Get a list of throttled users with their request count in last 24 hours.

LAQueryLogs
| where ResponseCode == "429"
| summarize reqCount = count() by AADObjectId
| order by reqCount desc

Request Count by ResponseCode

Request count by response code within 1 min buckets in last 1 hour.

LAQueryLogs
| where TimeGenerated > ago(1h)
| summarize count() by tostring(ResponseCode), bin(TimeGenerated, 1m)
| render columnchart with (kind=stacked)

Top 10 resource intensive queries

Get top 10 resource intesive queries (based on CPU consumption) in last 24 hours.

LAQueryLogs
| top 10 by StatsCPUTimeMs desc nulls last

Top 10 longest time range queries

Get top 10 queries that scanned the longest time range in last 24 hours.

LAQueryLogs
| extend DataProcessedTimeRange = format_timespan(StatsDataProcessedEnd - StatsDataProcessedStart, 'dd.hh:mm:ss:FF')
| top 10 by DataProcessedTimeRange desc nulls last

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