[BUG]:UCX Installation Failure

[Mbaroudi]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

The databricks labs install ucx command fails during the installation process with a JSONDecodeError. The error appears to occur when the installer attempts to parse an API response. This results in the installation process terminating unexpectedly.
Relevant log output:
09:42:06 INFO [d.l.ucx.install] Installing UCX v0.50.0 Traceback (most recent call last): File "/path/to/requests/models.py", line 974, in json return complexjson.loads(self.text, **kwargs) File "/path/to/json/init.py", line 346, in loads return _default_decoder.decode(s) ... requests.exceptions.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/path/to/databricks/labs/ucx/install.py", line 927, in workspace_installer.run() File "/path/to/databricks/labs/ucx/install.py", line 193, in run config = self.configure(default_config) ... requests.exceptions.JSONDecodeError: Expecting value: line 1 column 1 (char 0) Error: installer: exit status 1

Expected Behavior

The databricks labs install ucx command should successfully complete the installation of UCX in the Databricks environment, without errors or interruptions.

Steps To Reproduce

1. Environment Setup:
   • macOS
   • Python version 3.10.15 (installed via Homebrew)
2. Configuration:
   • UCX installed using Databricks CLI
   • Virtual environment set up using:

     python3.10 -m venv ~/.venvs/ucx
     source ~/.venvs/ucx/bin/activate
     pip install databricks-labs-ucx

3. Steps to Trigger the Error:
   • Run the following command:

     databricks labs install ucx

4. Observed Result:
   • The installation fails with the error detailed above.

Cloud

GCP

Operating System

macOS

Version

latest via Databricks CLI

Relevant log output

09:42:06 INFO [d.l.ucx.install] Installing UCX v0.50.0 Traceback (most recent call last): File "/path/to/requests/models.py", line 974, in json return complexjson.loads(self.text, **kwargs) File "/path/to/json/init.py", line 346, in loads return _default_decoder.decode(s) ... requests.exceptions.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/path/to/databricks/labs/ucx/install.py", line 927, in <module> workspace_installer.run() File "/path/to/databricks/labs/ucx/install.py", line 193, in run config = self.configure(default_config) ... requests.exceptions.JSONDecodeError: Expecting value: line 1 column 1 (char 0) Error: installer: exit status 1

[Trifa01]

Hello @Mbaroudi
I had the same error this morning but it's now resolved. Try to re-execute the install

[Mbaroudi]

Hello @Trifa01 ,
Thank you for your response but I still have the same issue, I am experiencing the same issue with the databricks labs install ucx command, resulting in a JSONDecodeError. The installation fails with the same traceback as described above.

[Mbaroudi]

Please find attached my debug and faked log for sensitive data:
15:34:44 INFO start pid=13905 version=0.234.0 args="databricks, labs, install, ucx, --profile, dev, --debug"
15:34:44 DEBUG Latest ucx version is: v0.50.0 pid=13905
15:34:44 DEBUG Reading [email protected] from databrickslabs/ucx pid=13905
15:34:44 INFO Overriding login profile: dev pid=13905
15:34:44 DEBUG Loading dev profile from /.databrickscfg pid=13905 sdk=true
15:34:44 DEBUG Resolved login: Config: host=https://1234567890123456.9.gcp.databricks.com/?o=1234567890123456, token=***, profile=dev, config_file=/.databrickscfg pid=13905 sdk=true
15:34:44 DEBUG Writing auth configuration to: ~/.databricks/labs/ucx/config/login.json pid=13905
⣾ Cleaning up previous installation if necessary15:34:44 DEBUG Downloading zipball for v0.50.0 from databrickslabs/ucx pid=13905
⣯ Downloading and unpacking zipball for v0.50.015:34:45 DEBUG Unpacking zipball to: ~/.databricks/labs/ucx/lib pid=13905
⣾ Detecting all installed Python interpreters on the system15:34:45 DEBUG found 17 potential alternative Python versions in $PATH pid=13905
15:34:45 DEBUG running: /opt/homebrew/Cellar/[email protected]/bin/python3.10 --version pid=13905
15:34:45 DEBUG /opt/homebrew/Cellar/[email protected]/bin/python3.10 --version: Python 3.10.15 pid=13905
15:34:45 DEBUG running: ~/opt/anaconda3/bin/python3.9 --version pid=13905
15:34:45 DEBUG ~/opt/anaconda3/bin/python3.9 --version: Python 3.9.13 pid=13905
15:34:45 DEBUG running: ~/opt/anaconda3/bin/python.app --version pid=13905
15:34:45 DEBUG failed to check version for ~/opt/anaconda3/bin/python.app: signal: killed pid=13905
15:34:45 DEBUG running: ~/opt/anaconda3/bin/pythonw --version pid=13905
15:34:45 DEBUG ~/opt/anaconda3/bin/pythonw --version: Python 3.9.13 pid=13905
15:34:45 DEBUG running: /opt/homebrew/Cellar/[email protected]/bin/python3.13 --version pid=13905
15:34:45 DEBUG /opt/homebrew/Cellar/[email protected]/bin/python3.13 --version: Python 3.13.0 pid=13905
15:34:45 DEBUG running: /usr/bin/python3 --version pid=13905
15:34:45 DEBUG /usr/bin/python3 --version: Python 3.9.6 pid=13905
15:34:45 DEBUG Detected Python v3.10.15 at: /opt/homebrew/Cellar/[email protected]/bin/python3.10 pid=13905
15:34:45 DEBUG Creating Python Virtual Environment at: ~/.databricks/labs/ucx/state/venv pid=13905
15:34:45 DEBUG running: /opt/homebrew/Cellar/[email protected]/bin/python3.10 -m venv ~/.databricks/labs/ucx/state/venv pid=13905
⣟ Creating Virtual Environment with Python v3.10.1515:34:46 DEBUG Installing Python dependencies for: ~/.databricks/labs/ucx/lib pid=13905
15:34:46 DEBUG running: ~/.databricks/labs/ucx/state/venv/bin/python3 -m pip install --upgrade --upgrade-strategy eager . pid=13905
15:34:48 DEBUG Writing installed version info to: ~/.databricks/labs/ucx/state/version.json pid=13905
15:34:48 DEBUG Launching installer script src/databricks/labs/ucx/install.py in ~/.databricks/labs/ucx/lib pid=13905
15:34:48 INFO Overriding login profile: dev pid=13905
15:34:48 DEBUG Loading dev profile from /.databrickscfg pid=13905 sdk=true
15:34:48 DEBUG Resolved login: Config: host=https://1234567890123456.9.gcp.databricks.com, token=***, profile=dev, config_file=/.databrickscfg pid=13905 sdk=true
15:34:48 DEBUG Passing down environment variables: DATABRICKS_HOST, DATABRICKS_TOKEN pid=13905
15:34:48 DEBUG starting: /.databricks/labs/ucx/state/venv/bin/python3 src/databricks/labs/ucx/install.py pid=13905
15:34:49 INFO [d.l.ucx.install] Installing UCX v0.50.0
Traceback (most recent call last):
File "/.databricks/labs/ucx/state/venv/lib/python3.10/site-packages/requests/models.py", line 974, in json
return complexjson.loads(self.text, **kwargs)
...
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)