# Host Upgrade Install Fails When Attempting To Download hostagent.conf From Management Plane When Pro

## Problem

Host upgrade install fails when attempting to download *hostagent.conf* from management plane. The proxy settings are in place. Post this failure, /var/opt/pf9/hostagent/XXXXX/desired\_apps.json.part file and the /var/opt/pf9/hostagent/ directory itself is not seen. Restarting pf9-hostagent service recreates this directory back and then on a subsequent retry, host upgrade succeeds.

{% tabs %}
{% tab title="Hostagent logs" %}

```javascript
2023-05-05 18:26:36,376 - pf9_app_cache.py INFO - Using previously cached file /var/cache/pf9apps/pf9-hostagent/5.6.4-1078.9f795fe/pf9-hostagent-5.6.4-1078.9f795fe.x86_64.deb
2023-05-05 18:26:36,377 - pf9_app.py INFO - Updating pf9-hostagent.5.6.4-1078.9f795fe
2023-05-05 18:27:45,607 - pf9_app_db.py ERROR - Install command failed: sudo /opt/pf9/hostagent/bin/pf9-apt install /var/cache/pf9apps/pf9-hostagent/5.6.4-1078.9f795fe/pf9-hostagent-5.6.4-1078.9f795fe.x86_64.deb. Return code: 1, stdout: (Reading database ... 178992 files and directories currently installed.)
Preparing to unpack .../pf9-hostagent-5.6.4-1078.9f795fe.x86_64.deb ...
Downloading hostagent.conf from PF9
Failed to download hostagent.conf from PF9
, stderr: dpkg: error processing archive /var/cache/pf9apps/pf9-hostagent/5.6.4-1078.9f795fe/pf9-hostagent-5.6.4-1078.9f795fe.x86_64.deb (--install):
new pf9-hostagent package pre-installation script subprocess returned error exit status 1
Errors were encountered while processing:
/var/cache/pf9apps/pf9-hostagent/5.6.4-1078.9f795fe/pf9-hostagent-5.6.4-1078.9f795fe.x86_64.deb
Failed to install package: /var/cache/pf9apps/pf9-hostagent/5.6.4-1078.9f795fe/pf9-hostagent-5.6.4-1078.9f795fe.x86_64.debTraceback (most recent call last):
Traceback (most recent call last):
File "/opt/pf9/hostagent/bin/pf9-apt", line 94, in <module>_install_package(package, cache)
File "/opt/pf9/hostagent/bin/pf9-apt", line 72, in _install_package package_path
Exception: Errors encountered while installing : /var/cache/pf9apps/pf9-hostagent/5.6.4-1078.9f795fe/pf9-hostagent-5.6.4-1078.9f795fe.x86_64.deb
2023-05-05 18:27:45,608 - session.py ERROR - Updating the pf9 host agent failed
Traceback (most recent call last):
File "/opt/pf9/hostagent/lib/python3.9/site-packages/bbslave/session.py", line 441, in update_agent
process_agent_update(agent_info, agent_app_db, app_cache,
File "/opt/pf9/hostagent/lib/python3.9/site-packages/pf9app/algorithms.py", line 216, in process_agent_update new_agent.update()
File "/opt/pf9/hostagent/lib/python3.9/site-packages/pf9app/pf9_app.py", line 437, in update
self.app_db.update_package(local_path)
File "/opt/pf9/hostagent/lib/python3.9/site-packages/pf9app/pf9_app_db.py",line 342, in update_package
self.pkgmgr.update_from_file(path)
File "/opt/pf9/hostagent/lib/python3.9/site-packages/pf9app/pf9_app_db.py",line 116, in update_from_file
self.install_from_file(pkg_path)
File "/opt/pf9/hostagent/lib/python3.9/site-packages/pf9app/pf9_app_db.py",line 106, in install_from_file
raise InstallOperationFailed()
pf9app.exceptions.InstallOperationFailed
2023-05-05 18:27:47,767 - session.py ERROR - Failed to save desired configuration: [Errno 2] No such file or directory: '/var/opt/pf9/hostagent/04755078-1580-4f3e-b886-d2e756d27ff0/desired_apps.json.part'
2023-05-05 18:27:47,769 - session.py INFO - Already converged. Idling...
2023-05-05 18:27:50,378 - session.py ERROR - timeout 120 /opt/pf9/hostagent/extensions/fetch_pod_info.py command failed: Command '['timeout', '120', '/opt/pf9/hostagent/extensions/fetch_pod_info.py']' returned non-zero exit status 1.
```

{% endtab %}
{% endtabs %}

## Environment

* Platform9 Managed Kubernetes - v5.5

## Answer

* This is a known issue and Platform9 Engineering team is currently working on the CORE-1288.

## Workaround

1. Try removing proxy environment variables from `/etc/environment` for worker nodes and added [`localhost`](http://localhost/) to NO\_PROXY variable on master nodes. Post doing this, host upgrades succeeds for most nodes.
2. Restart pf9-hostagent service.
3. Manually copy the .deb package from the active node and save it in the same location in the affected. Example: `/var/cache/pf9apps/pf9-hostagent/5.6.4-1078.9f795fe/pf9-hostagent-5.6.4-1078.9f795fe.x86_64.deb`
4. Restart the Platform9 services related to Hostagent, Comms and Sidekick.

## Additional Information

To track the progress of the fix for this issue, open a support ticket mentioning the Jira CORE-1288.


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