Azure Monitor diagnostic logs provide data about the operation of Azure resources. Azure Data Explorer uses diagnostic logs for insights on ingestion successes and failures. You can export operation logs to Azure Storage, Event Hub, or Log Analytics to monitor ingestion status. Logs from Azure Storage and Azure Event Hub can be routed to a table in your Azure Data Explorer cluster for further analysis.
Diagnostic logs can be used to configure the collection of the following log data:
Successful ingestion operations: These logs have information about successfully completed ingestion operations.
Failed ingestion operations: These logs have detailed information about failed ingestion operations including error details.
The data is then archived into a Storage account, streamed to an Event Hub, or sent to Log Analytics, as per your specifications.
Diagnostic logs are disabled by default. you should enable the diagnostics and select one or more destinations, logs to be collected and one or more Metrics Categories (each category includes list of metrics) to logs.