> ## Documentation Index
> Fetch the complete documentation index at: https://docs.open-metadata.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Nifi Connector Troubleshooting | Official Documentation

> Troubleshoot NiFi ingestion problems including access errors, broken links, and metadata gaps in pipeline syncs.

## Troubleshooting

## Workflow Deployment Error

If there were any errors during the workflow deployment process, the
Ingestion Pipeline Entity will still be created, but no workflow will be
present in the Ingestion container.

* You can then Edit the Ingestion Pipeline and **Deploy** it again.
* From the Connection tab, you can also Edit the Service if needed.

## Connector Debug Troubleshooting

This section provides instructions to help resolve common issues encountered during connector setup and metadata ingestion in OpenMetadata. Below are some of the most frequently observed troubleshooting scenarios.

## How to Enable Debug Logging for Any Ingestion

To enable debug logging for any ingestion workflow in OpenMetadata:

1. **Navigate to Services**
   Go to **Settings > Services > Service Type** (e.g., Database) in the OpenMetadata UI.

2. **Select a Service**
   Choose the specific service for which you want to enable debug logging.

3. **Access Ingestion Tab**
   Go to the **Ingestion tab** and click the three-dot menu on the right-hand side of the ingestion type, and select Edit.

4. **Enable Debug Logging**
   In the configuration dialog, enable the **Debug Log** option and click **Next**.

5. **Schedule and Submit**
   Configure the schedule if needed and click **Submit** to apply the changes.

## Permission Issues

If you encounter permission-related errors during connector setup or metadata ingestion, ensure that all the prerequisites and access configurations specified for each connector are properly implemented. Refer to the connector-specific documentation to verify the required permissions.

Learn how to resolve the most common problems people encounter in the Nifi connector.

## No applicable policies could be found

If you see the error `No applicable policies could be found. Contact the system administrator` during the Test
Connection or when running the ingestion, you will need to add the missing policies in the Nifi instance.

You can find more information in this [link](https://community.cloudera.com/t5/Support-Questions/API-call-to-nifi-api-resources-results-in-quot-No-applicable/td-p/363534).

The accepted answer is to add a policy to `authorizations.xml` as follows:

```xml theme={null}
<policy identifier="0c6d205e-9153-4bcd-9534-aeb029c65e10" resource="/resources" action="R">
    <group identifier="2c7ce5db-0186-1000-ffff-ffffdbb1315d"/>
</policy>
```