CODEWITHSUNDEEP
azureazure-functionsazure-application-insightsazure-monitoring
Nick Meng
Nick Meng

Reputation: 75

Azure Function: Can't check memory usage of instances

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I'm using Azure Function App, in Application Insight-performance, I'm able to see the CPU usage of each instance but not memory or IO rate...

What could be the reason? Thank you!

Upvotes: 2

Views: 1634

Answers (2)

Paul Smith
Paul Smith

Reputation: 186

It seems like we might still be able to view memory usage using app insights. The following query looks at the performance counters.

performanceCounters
| where cloud_RoleName == '<service name>'
| where counter in('Private Bytes', 'Virtual Bytes')
| summarize avg(value) by bin(timestamp, 15m), counter
| order by timestamp desc
| render timechart

See Performance counters in log analytics

Upvotes: 0

anon
anon

Reputation:

I tried to reproduce the issue by watching the metrics, logs of the Azure Function App (Python Stack) as it is showing most of the metrics like Server Requests, Response, Success and Failure logs except the Memory working set and few.

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But as per this MSFT documentation I came to know that

Memory data isn't a metric currently available through Azure Monitor. However, if you want to optimize the memory usage of your app, can use the performance counter data collected by Application Insights. This metric isn't currently supported for Premium and Dedicated (App Service) plans running on Linux.

Refer Azure Monitor Performance counter metrics to learn more Information.

Upvotes: 1

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