File-Based Backup fails on vCenter Server 7.0 configured with a proxy
Article ID: 318569
Updated On:
Products
VMware vCenter Server
Issue/Introduction
Symptoms:
- vCenter is configured to use a proxy.
- The following errors are seen in /var/log/vmware/applmgmt/backup.log
2021-10-26T17:06:06.380 [20211026-150504-18778458] [ComponentScriptsBackup:PID-27160] [ComponentScripts::ComponentScriptsBackup:ComponentScripts.py:88] ERROR: Component backup command "/etc/vmware/backup/component-scripts/wcp/wcp_backup_restore.py --startBackup" failed 1.
2021-10-26T17:06:06.380 [20211026-150504-18778458] [ComponentScriptsBackup:PID-27160] [ComponentScripts::ComponentScriptsBackup:ComponentScripts.py:115] ERROR: Error during component wcp backup
2021-10-26T17:06:06.380 [20211026-150504-18778458] [ComponentScriptsBackup:PID-27160] [ComponentScripts::ComponentScriptsBackup:ComponentScripts.py:115] ERROR: Error during component wcp backup
- The following errors are seen in /var/log/vmware/wcp/wcpsvc-backup-restore.log
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 727, in urlopen
method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
File "/usr/lib/python3.7/site-packages/urllib3/util/retry.py", line 446, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='host.example.local', port=443): Max retries exceeded with url: /wcp (Caused by ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 403 Forbidden')))
File "/usr/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 727, in urlopen
method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
File "/usr/lib/python3.7/site-packages/urllib3/util/retry.py", line 446, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='host.example.local', port=443): Max retries exceeded with url: /wcp (Caused by ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 403 Forbidden')))
Environment
VMware vCenter Server 7.0.x
VMware vCenter Server 7.0.3
VMware vCenter Server 7.0.3
Cause
This issue occurs when the vCenter PNID cannot be resolved through the configured proxy.
Resolution
This issue is resolved in vCenter Server 7.0 Update 3c.
Workaround:
To workaround this issue, the proxy configuration can be updated to disregard the traffic to the vCenter PNID.
Note: Alternatively, the proxy which vCenter is using can also be configured so that it is able to resolve the vCenter PNID.
Workaround:
To workaround this issue, the proxy configuration can be updated to disregard the traffic to the vCenter PNID.
- Use this command to get the vCenter PNID
/usr/lib/vmware-vmafd/bin/vmafd-cli get-pnid --server-name localhost
- Use a text editor such as vi, update the NO_PROXY line of the /etc/sysconfig/proxy file to include the vCenter PNID.
Example:
NO_PROXY="localhost, 127.0.0.1, 192.168.1.0/16, vcenter.example.local, .*.example.local"
NO_PROXY="localhost, 127.0.0.1, 192.168.1.0/16, vcenter.example.local, .*.example.local"
Note: Alternatively, the proxy which vCenter is using can also be configured so that it is able to resolve the vCenter PNID.
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