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Agora Conversational AI Engine v2.4 Release

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March 2026 Agora Monthly Digest Meet our new AI agents

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Troubleshooting Cloud Recording Asset Mismatches: Verifying Storage Configuration and Delivery Routing

Updated

Issue Description

Customers report that recorded assets are missing from the primary cloud storage destination (e.g., Alibaba Cloud OSS) despite the Cloud Recording API returning a successful upload status. Investigations frequently reveal that the assets were successfully uploaded, but to an alternative storage provider (e.g., AWS S3) due to client-side business logic inconsistencies.

 

Platform/SDK

  • Service: Agora Cloud Recording

 

Root Cause

The Agora Cloud Recording service strictly adheres to the storage provider specified in the start request payload. The service never autonomously modifies storage routing. Mismatches occur exclusively due to client-side logic errors, such as:

  • Race Conditions: Duplicate recording requests triggered in rapid succession with conflicting configurations.

  • State Mismatched: The customer-side database recording the destination state (OSS) differs from the actual successful API call (S3).

  • Environment Switching: Application logic that dynamically selects storage providers based on user region or IP, which may fail to update the corresponding session record in the customer’s database.

 

Step-by-Step Solution

  1. Audit the Source of Truth

    Retrieve the raw request payload sent to the Agora Cloud Recording start endpoint. Validate the storageConfig block to confirm the provider (vendor ID) and the specific bucket/path parameters requested.

     

  2. Verify Asset Existence across Endpoints

    If the assets are missing from the primary bucket, perform a cross-platform audit. Search all potential storage providers configured in the application logic for the session SID or channel name.

     

  3. Correlate Webhook and Upload Records

    Analyze the full lifecycle of the recording task by comparing three sources:

    • The storage-provider-specific webhook delivery logs.

    • Agora backend upload status records (available via support internal tools).

    • The actual contents of the target storage buckets.

     

  4. Detect Duplicate Request Patterns

    Investigate if the application layer triggered competing recording start requests. A common pattern involves a failed initial request (e.g., OSS configuration error) followed by a successful secondary request (e.g., S3 configuration), where the application recorded the state of the failed request instead of the final successful one.

     

  5. Validate Full Payload Integrity

    Ensure the customer’s backend retains the full Cloud Recording request and response payloads, including SID, resourceID, HTTP status, and the specific storageConfig.

 

Best Practice

  • Centralize Storage Logic: Enforce a single source of truth for storage configuration. The service configuration should be locked before the recording starts.

  • Atomic State Updates: Database records must only be updated based on the successful response from the Cloud Recording API, not from the initial request attempt.

  • Integrity Auditing: Implement automated post-session audits that verify file existence in the configured storage bucket immediately after the recorder_leave event.

  • Logging: Require customers to log the full request/response payloads of all Cloud Recording API calls for rapid support engagement.

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