[VOL-3930] The openolt-adapter duplicates AllocIds and GemPortIds - OpenCORD JIRA

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Type: Bug
Status: Resolved (View Workflow)
Priority: Blocker
Resolution: Done
Affects Version/s: VOLTHA v2.6
Fix Version/s: VOLTHA v2.7
Component/s: openolt-adapter
Labels:
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Environment:
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The OpenOLT Adapter uses two different lock when acquiring and releasing resources.
Because of this a race condition exists between GetResourceID and FreeResouceId, allowing two possible failure cases:

IDs are marked as available even if they're not (if a FreeResourceID writes in the KV store after a concurrent GetResourceID)

IDs are marked as reserved even if they have been released (if a GetResourceID writes in the KV Store after a concurrent FreeResourceID)

This was uncovered by BBSim validating the resource IDs used in the flows.
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The OpenOLT Adapter uses two different lock when acquiring and releasing resources. Because of this a race condition exists between GetResourceID and FreeResouceId, allowing two possible failure cases: IDs are marked as available even if they're not (if a FreeResourceID writes in the KV store after a concurrent GetResourceID) IDs are marked as reserved even if they have been released (if a GetResourceID writes in the KV Store after a concurrent FreeResourceID) This was uncovered by BBSim validating the resource IDs used in the flows.