# No Response in Sparkflows UI After Submitting Job to Databricks – How to Troubleshoot Health Check?

**URL:** <https://community.sparkflows.ai/t/no-response-in-sparkflows-ui-after-submitting-job-to-databricks-how-to-troubleshoot-health-check/285>\
**Category:** Databricks\
**Tags:** troubleshooting\
**Created:** [January 28, 2026, 1:04pm UTC](https://community.sparkflows.ai/t/no-response-in-sparkflows-ui-after-submitting-job-to-databricks-how-to-troubleshoot-health-check/285 "2026-01-28T13:04:03Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tarika](https://avatars.discourse-cdn.com/v4/letter/t/8491ac/32.png) [@Tarika](https://community.sparkflows.ai/u/Tarika)\
**Post date:** [January 28, 2026, 1:04pm UTC](https://community.sparkflows.ai/t/no-response-in-sparkflows-ui-after-submitting-job-to-databricks-how-to-troubleshoot-health-check/285/1 "2026-01-28T13:04:03Z")

</div>

## Problem

When I submit a job to a Databricks cluster from the **Sparkflows UI** , the job runs but I don’t see any response or status update back in the UI. How can I troubleshoot this issue?

## Solution

Sparkflows relies on **postback events** from Databricks to update job status in the UI. If Sparkflows does not receive these callbacks, the UI will not show any response. This usually points to connectivity or configuration issues between Databricks and Sparkflows.

**Possible Causes**

1. The **Postback URL** configured in Sparkflows is incorrect.
2. The **Postback URL** is not accessible from the Databricks cluster due to network or DNS restrictions.

**Resolution Steps**

Jobs submitted from Sparkflows to Databricks send execution events back to Sparkflows. Therefore, the **Sparkflows web server endpoint must be reachable from the Databricks cluster**.

**Step 1:** Test Sparkflows Health Check from Databricks Notebook

Run the following command in a **Databricks notebook** to verify if the Sparkflows REST endpoint is accessible:

```auto
%sh curl --location --request GET 'http://sparkflows_host:8080/healthcheck'

```

**Note:** Replace `sparkflows_host` with the **domain name or IP address** where Sparkflows is running.

If this request succeeds, Databricks can reach Sparkflows and postback events should work.

## Problem

When running the `curl` command from a Databricks notebook using **HTTPS** , the following error appears:

```auto
Could not resolve host: sparkflows.com

```

## Solution

**Possible Causes**

1. The **domain name cannot be resolved to an IP address** (DNS issue).
2. The **domain name is misspelled** or the URL is incorrect.
3. A **network connectivity issue** exists between Databricks and the Sparkflows server.
4. There is an **SSL/TLS certificate issue** on the Sparkflows server.

**Resolution Steps**

**Step 1:** Verify URL and DNS

- Ensure the domain name is spelled correctly.
- Confirm that the correct protocol (`http` or `https`) is being used.

**Step 2:** Check Network Connectivity

- Verify that the Sparkflows server is reachable from the Databricks VNet.
- Try running the command again after confirming firewall and routing rules.

**Step 3:** Manually Resolve the Host (Optional)

If DNS resolution is failing, you can explicitly specify the IP address:

```auto
curl --resolve sparkflows.com:443:<IP_ADDRESS> https://sparkflows.com/healthcheck

```

**Step 4:** Disable SSL Validation (For Troubleshooting Only)

```auto
curl --insecure https://sparkflows.com/healthcheck

```

**Note:** This option is **not recommended for production** but can help identify certificate-related issues during troubleshooting.