Reef App: Parking History Data Migration Failure - Solar... | terminalfaults.org

Technical Background:

Data migration processes rely on API calls and data serialization (JSON) between the app and the backend servers. Errors can occur due to incorrect API versioning, incomplete JSON data, corrupted cache entries, or authentication token invalidation.

Symptoms:

Parking history data is not displayed in the Reef app following a recent update. User data appears to be present, but the parking history section is empty or incomplete.

Possible Causes:

Incompatible API version between the Reef app and the data server after the update.
Failed or incomplete data migration script during the update process, leaving legacy data un-migrated.
Corrupted cache data in the app preventing the proper retrieval and display of parking history.
Authentication token invalidation or expiry, preventing the app from accessing the parking history data.
DNS resolution issues preventing the app from connecting to the correct data server. A latency in this data would lead to timeout errors during the migration.
Rate limiting on API endpoints causing data retrieval to be throttled or blocked.

Solution:

1

Clear the Reef app's cache and data from the kiosk's settings menu. This resets the app to its initial state.
2

Restart the Reef app. This will force the app to re-authenticate and retrieve data from the server.
3

Verify the kiosk's network connectivity and DNS settings to ensure it can reach the Reef data servers.
4

Check the Reef app version against the latest available version to ensure the kiosk is running the most current software.
5

Reinstall the Reef app if clearing the cache and restarting does not resolve the issue. This ensures a clean system of the latest app version.
6

Contact Reef support to report the data migration issue, including the kiosk ID and app version, for further investigation.
7

Monitor the Reef app for recurrence of the data migration error after the above steps are taken.

Safety Warning:

Ensure the kiosk is placed in a location that is protected from extreme weather conditions, especially temperatures below -40C. Protect the kiosk from potential vandalism by securing it to its mounting surface and utilizing a tamper-resistant enclosure.

Prevention:

Implement robust data migration testing procedures before releasing app updates. Monitor API response codes and error logs for anomalies. Implement API version control and compatibility checks to prevent data retrieval issues. Use a Content Delivery Network (CDN) to speed up loading times for large data transfers.

Expert Tip:

If the parking history data appears intermittently, check for potential DNS caching issues on the kiosk's network. Flushing the DNS cache or using a public DNS server may resolve the problem. The local DNS settings need to be pointed toward the proper authoritative nameservers.

Frequently Asked Questions

•What is the current version of the Reef app installed on the kiosk?

Check the app settings on the kiosk for the version number.

•Are other kiosks experiencing the same data migration issue?

Collect data from other kiosks to determine if the problem is isolated or widespread.

•What type of network connection does the kiosk use (e.g., Ethernet, Wi-Fi)?

Determine the network connection type to troubleshoot network-related issues.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the current version of the Reef app installed on the kiosk?

•Are other kiosks experiencing the same data migration issue?

•What type of network connection does the kiosk use (e.g., Ethernet, Wi-Fi)?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: