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This article helps debug SroreOnce errors that can occur while using Checkmk. |
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Problem
The storeonce is agent is crashing with the following message
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<<<storeonce4x_d2d_services:sep(0)>>>
Traceback (most recent call last):
File "/omd/sites/mysite/lib/python3/requests_oauthlib/oauth2_session.py", line 477, in request
url, headers, data = self._client.add_token(
File "/omd/sites/mysite/lib/python3/oauthlib/oauth2/rfc6749/clients/base.py", line 198, in add_token
raise TokenExpiredError()
oauthlib.oauth2.rfc6749.errors.TokenExpiredError: (token_expired)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "share/check_mk/agents/special/agent_storeonce4x", line 10, in <module>
main()
File "/omd/sites/mysite/lib/python3/cmk/special_agents/agent_storeonce4x.py", line 260, in main
special_agent_main(parse_arguments, agent_storeonce4x_main)
File "/omd/sites/mysite/lib/python3/cmk/special_agents/utils/agent_common.py", line 159, in special_agent_main
_special_agent_main_core(parse_arguments, main_fn, sys.argv[1:])
File "/omd/sites/mysite/lib/python3/cmk/special_agents/utils/agent_common.py", line 141, in _special_agent_main_core
main_fn(args)
File "/omd/sites/mysite/lib/python3/cmk/special_agents/agent_storeonce4x.py", line 251, in agent_storeonce4x_main
writer.append_json(function(oauth_session))
File "/omd/sites/mysite/lib/python3/cmk/special_agents/utils/agent_common.py", line 51, in append_json
for l in data:
File "/omd/sites/mysite/lib/python3/cmk/special_agents/agent_storeonce4x.py", line 154, in handler_simple
yield from (requester.get(uri) for uri in uris)
File "/omd/sites/mysite/lib/python3/cmk/special_agents/agent_storeonce4x.py", line 154, in <genexpr>
yield from (requester.get(uri) for uri in uris)
File "/omd/sites/mysite/lib/python3/cmk/special_agents/agent_storeonce4x.py", line 142, in get
resp = self._oauth_session.request(
File "/omd/sites/mysite/lib/python3/requests_oauthlib/oauth2_session.py", line 496, in request
token = self.refresh_token(
File "/omd/sites/mysite/lib/python3/requests_oauthlib/oauth2_session.py", line 446, in refresh_token
self.token = self._client.parse_request_body_response(r.text, scope=self.scope)
File "/omd/sites/mysite/lib/python3/oauthlib/oauth2/rfc6749/clients/base.py", line 421, in parse_request_body_response
self.token = parse_token_response(body, scope=scope)
File "/omd/sites/mysite/lib/python3/oauthlib/oauth2/rfc6749/parameters.py", line 431, in parse_token_response
validate_token_parameters(params)
File "/omd/sites/mysite/lib/python3/oauthlib/oauth2/rfc6749/parameters.py", line 441, in validate_token_parameters
raise MissingTokenError(description="Missing access token parameter.")
oauthlib.oauth2.rfc6749.errors.MissingTokenError: (missing_token) Missing access token parameter. |
Solution
Example with Special Agent of Storeonce4x
Find out the detailed special agent command (Type of agent column)
Code Block language bash theme RDark OMD[mysite]:~$ cmk -D hostname
Note an easier way would be this command: /bin/sh -c "$(cmk -D k8s | grep -A1 "^Type of agent:" | grep "Program:" | cut -f2 -d':')"
Please note that if a line matching "^Type of agent:" followed by a line matching "^ Program:" exists more than once, then the output might be messed up.
Check if there are some options for debugging
Code Block language bash theme RDark OMD[mysite]:~$ ~/share/check_mk/agents/special/agent_storeonce4x -h
There are three options for debugging the request
Code Block language bash theme RDark --debug, -d Enable debug mode (keep some exceptions unhandled) --verbose, -v --vcrtrace TRACEFILE, --tracefile TRACEFILE If this flag is set to a TRACEFILE that does not exist yet, it will be created and all requests the program sends and their corresponding answers will be recorded in said file. If the file already exists, no requests are sent to the server, but the responses will be replayed from the tracefile.
Modify the special agent command by adding these three options
Code Block language bash theme RDark OMD[mysite]:~$ ~/share/check_mk/agents/special/agent_storeonce4x <OTHER ARGUMENTS> --debug -v --vcrtrace ~/tmp/vcrtrace.txt 2>1 ~/tmp/storeonce4x_with_debug.txt
Run the special agent with no debug options to create an agent output. With this file, we can reproduce your issue
Code Block language bash theme RDark OMD[mysite]:~$ /omd/sites/mysite/share/check_mk/agents/special/agent_kube <OTHER ARGUMENTS> > ~/tmp/k8s_agent_output.txt
- Rename the token file
the storeonce4x special agent is using username/password for authentication. After the successful login, we obtain the access token. The access token is used for future REST requests. If you want to read more, you can check this out: https://hewlettpackard.github.io/storeonce-rest/#AuthenticationWe save the token file inside the site in
Code Block language bash theme RDark ~/tmp/check_mk/special_agents/agent_storeonce4x/<hostname>_oAuthToken.json
rename the file to
Code Block language bash theme RDark ~/tmp/check_mk/special_agents/agent_storeonce4x/<hostname>_oAuthToken.json.back
- run the special agent again
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