edgeAgent consumes excessive RAM

[mullerju]

Current Behavior

edgeAgent was observed to keep allocating more and more system memory at a very slow rate over many months without ever freeing it.

Expected Behavior

NFR-004 - The EdgeAgent module must consume a maximum of 100 MB memory while maintaining optimal stability in a restricted environment and without impacting other resources on board.
NFR-004x– Requesting that Microsoft run a memory leak detection tool for all IoT Edges modules.

Steps to Reproduce

Steps available here : 2302240040005623 / 2206160040008200

Context (Environment)

Device (host) operating system : Redhat 8.2
Architecture : AMD64 (x86-64)

Runtime Versions

• edgeAgent mcr.microsoft.com/azureiotedge-agent: 1.4 (Microsoft)
• edgeHub mcr.microsoft.com/azureiotedge-hub: 1.4 (Microsoft)
• medmblob mcr.microsoft.com/azure-blob-storage:1.4.2-linux-amd64 1.4.2 (Microsoft)
• metrics-collector mcr.microsoft.com/azureiotedge-metrics-collector:1.0.10 1.0.10 (Microsoft)
• Docker/Moby [run docker version]: moby-engine 20.10.18+azure-2.el8.x86_64

[nyanzebra]

Hello, @mullerju

Want to understand the problem a bit more. From the linked repro steps, are you saying that the setup is one in which UploadModuleLogs is called and might be the cause for larger memory usage? If so, have you tried anything listed here in Logging Considerations?

If this is different to the above, would you mind explaining what the minimum modules and steps are for replicating this behaviour?

[mullerju]

This currently being handle in support ticket TrackingID#2302240040005623

[github-actions]

This issue is being marked as stale because it has been open for 30 days with no activity.

[spark-iiot]

Any patches available from Microsoft for this issue ?