Cannot Schedule Automatic Value Scanning For Postgres Database

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Describe the Bug

In this article, we will delve into an issue that arises when attempting to schedule automatic value scanning for a Postgres database in Metabase. The problem occurs when users try to set up regular scanning for filter values, but the system fails to accept the changes, resulting in an error message.

Logs and Error Messages

While there are no specific JavaScript console logs provided for this issue, the server logs around the time the bug occurred are crucial in understanding the problem. However, for the sake of this article, we will focus on the error message that appears when trying to save the changes:

Assert failed: (every? some? [cache_field_values_schedule metadata_sync_schedule])

This error message indicates that there is a problem with the scheduling of cache field values and metadata sync. However, without further information from the server logs, it is challenging to pinpoint the exact cause of the issue.

To Reproduce the Bug

To reproduce the behavior, follow these steps:

  1. Navigate to the database administration page for your Postgres database. The URL for this page is typically in the format https://%.metabaseapp.com/admin/databases/2, where 2 represents the ID of your Postgres database.
  2. Scroll down to the section labeled "Scanning for filter values."
  3. Change the value from "Manual" to "Regularly, on a schedule."
  4. Click the "Save changes" button.
  5. Observe the error message that appears, which should be Assert failed: (every? some? [cache_field_values_schedule metadata_sync_schedule]).

Expected Behavior

The expected behavior is that the system should accept the changes and start scanning values daily. However, due to the error, this is not possible, and users are left with no choice but to perform manual scanning periodically.

Screenshots and Visual Representation

While there is only one screenshot provided, it gives a visual representation of the issue. The screenshot shows the error message that appears when trying to save the changes.

Severity of the Issue

The severity of this issue is considered annoying, as users are forced to perform manual scanning periodically. This can be time-consuming and may lead to inconsistencies in the data.

Possible Causes and Solutions

There are several possible causes for this issue, including:

  • Incompatible database settings: The database settings may not be compatible with the scheduled scanning feature.
  • Incorrect configuration: The configuration for the scheduled scanning feature may be incorrect.
  • Database schema issues: There may be issues with the database schema that are preventing the scheduled scanning feature from working correctly.

To resolve this issue, users can try the following:

  • Check database settings: Ensure that the database settings are compatible with the scheduled scanning feature.
  • Review configuration: Review the configuration for the scheduled scanning feature to ensure that it is correct.
  • Check database schema: Check the database schema for any issues that may be preventing the scheduled scanning feature from working correctly.

Conclusion

In conclusion, the issue of not being able to schedule automatic value scanning for a Postgres database Metabase is a frustrating problem that can be time-consuming to resolve. However, by understanding the possible causes and solutions, users can take steps to resolve the issue and ensure that their data is up-to-date and accurate.

Troubleshooting Guide

For further assistance with troubleshooting this issue, refer to the Metabase troubleshooting guide, which provides detailed information on how to troubleshoot common issues.

Additional Resources

For additional resources and information on how to resolve this issue, refer to the following resources:

Q: What is the issue with scheduling automatic value scanning for Postgres database in Metabase?

A: The issue arises when users try to set up regular scanning for filter values, but the system fails to accept the changes, resulting in an error message Assert failed: (every? some? [cache_field_values_schedule metadata_sync_schedule]).

Q: What are the possible causes of this issue?

A: There are several possible causes for this issue, including:

  • Incompatible database settings: The database settings may not be compatible with the scheduled scanning feature.
  • Incorrect configuration: The configuration for the scheduled scanning feature may be incorrect.
  • Database schema issues: There may be issues with the database schema that are preventing the scheduled scanning feature from working correctly.

Q: How can I troubleshoot this issue?

A: To troubleshoot this issue, follow these steps:

  1. Check database settings: Ensure that the database settings are compatible with the scheduled scanning feature.
  2. Review configuration: Review the configuration for the scheduled scanning feature to ensure that it is correct.
  3. Check database schema: Check the database schema for any issues that may be preventing the scheduled scanning feature from working correctly.

Q: What are the symptoms of this issue?

A: The symptoms of this issue include:

  • Error message: The error message Assert failed: (every? some? [cache_field_values_schedule metadata_sync_schedule]) appears when trying to save the changes.
  • Inability to schedule scanning: The system fails to accept the changes and start scanning values daily.

Q: How can I resolve this issue?

A: To resolve this issue, try the following:

  • Check database settings: Ensure that the database settings are compatible with the scheduled scanning feature.
  • Review configuration: Review the configuration for the scheduled scanning feature to ensure that it is correct.
  • Check database schema: Check the database schema for any issues that may be preventing the scheduled scanning feature from working correctly.

Q: What are the consequences of not resolving this issue?

A: If this issue is not resolved, users may experience:

  • Inconsistent data: The data may become inconsistent due to the lack of regular scanning.
  • Time-consuming manual scanning: Users may be forced to perform manual scanning periodically, which can be time-consuming.

Q: Where can I find additional resources for resolving this issue?

A: For additional resources and information on how to resolve this issue, refer to the following resources:

Q: How can I prevent this issue from occurring in the future?

A: To prevent this issue from occurring in the future, ensure that:

  • Database settings are compatible: The database settings are compatible with the scheduled feature.
  • Configuration is correct: The configuration for the scheduled scanning feature is correct.
  • Database schema is correct: The database schema is correct and does not contain any issues that may prevent the scheduled scanning feature from working correctly.