Symptoms:
-
Applying the OS or Application upgrade fails quickly.
-
The
Software Update
tab in the Admin UI displays the status
Failed The PAK action "validate" script "source ./pak_python_wrapper.sh validate.py" failed
for one or more nodes.
-
The
/storage/vcops/log/pakManager/
PAK_name
/validate_stderr.log
on one or more nodes shows error similar to:
DEBUG - Reading from "/storage/log/vcops/log/vcops-watchdog/vcops-watchdogHistory.json" watchdog state file
ERROR - service_restarts_check failed, No JSON object could be decoded
Traceback (most recent call last):
File "validate.py", line 1974, in main
result, result_description = getattr(envInfo, check_name)()
File "validate.py", line 886, in service_restarts_check
data = json.load(w_history)
File "/usr/lib/vmware-vcopssuite/python/lib/python2.7/json/__init__.py", line 291, in load
**kw)
File "/usr/lib/vmware-vcopssuite/python/lib/python2.7/json/__init__.py", line 339, in loads
return _default_decoder.decode(s)
File "/usr/lib/vmware-vcopssuite/python/lib/python2.7/json/decoder.py", line 364, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/vmware-vcopssuite/python/lib/python2.7/json/decoder.py", line 382, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
ERROR - No JSON object could be decoded
DEBUG - Updating state file with check: service_restarts_check, start_time: False, stop_time: True, result: False, result_desc: No JSON object could be decoded
ERROR - Failed running upgrade: ValueError('No JSON object could be decoded',) is not JSON serializable
To resolve this issue, replace, or fix the
vcops-watchdogHistory.json
file.
-
Log into the affected node as root via SSH or Console.
Note
: An affected node will be any node with the errors in the
/storage/vcops/log/pakManager/
PAK_name
/validate_stderr.log
file or with the Failed status in the
Software Update
tab of the Admin UI as shown in the
Symptoms
section.
-
Open
/storage/vcops/log/vcops-watchdog/vcops-watchdogHistory.json
in a text editor.
-
Replace the contents of this file with the following:
{
"actions": [
]
}
-
Save and close the file.
-
Repeat steps 1-4 for any other affected nodes.
-
Retry the upgrade installation.
