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Table of Contents

General debug options

Note
Info

If you're running in into a DCD issue, you can follow these steps to get a better overview of that issue:.

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titleLAST TESTED ON CHECKMK 2.3.0P1


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titleTable of Contents

Table of Contents

General debug options

Increase the log level

Follow that manual to increase the log level of the DCD: How to collect troubleshooting data for various issue types#DCD

Manual execution 

Like described in Solution you As described in 9472664, you can grab the URLs and try them inside a script or via the browser, e.g.:

Note

Since check 2.1, the DCD is using uses the REST - API. Checkmk 1.6 is using the WEB-API to create a host (https://docs.checkmk.com/latest/en/web_api_references.htmlCheckmk REST API)


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2022-05-13 13:37:35,970 [10] [cmk.dcd.web_api] > [GET] http://localhost:5005/bimysite/check_mk/api/1.0/domain-types/host_config/collections/all 

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2022-05-13 13:38:28,917 [10] [cmk.dcd.web_api] > [POST] http://localhost:5005/bimysite/check_mk/api/1.0/domain-types/host_config/actions/bulk-create/invoke ((), {'data': None, 'json': {'ent
ries': [{'host_name': 'aws', 'folder': '/', 'attributes': {'locked_by': {'site_id': 'bimysite', 'program_id': 'dcd', 'instance_id': 'connection_1'}, 'locked_attributes': ['cb', 'labels', 's
ite', 'tag_address_family', 'tag_agent'], 'site': 'bimysite', 'labels': {'ds': 'pgb'}, 'tag_address_family': 'no-ip', 'tag_agent': 'no-agent', 'cb': 'hh'}}]}, 'params': {'bake_agent': 'fals
e'}})

...

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2022-05-13 13:38:28,917 [10] [cmk.dcd.web_api] > [POST] http://localhost:5005/bimysite/check_mk/api/1.0/domain-types/host_config/actions/bulk-create/invoke ((), {'data': None, 'json': {'ent
ries': [{'host_name': 'aws', 'folder': '/', 'attributes': {'locked_by': {'site_id': 'bimysite', 'program_id': 'dcd', 'instance_id': 'connection_1'}, 'locked_attributes': ['cb', 'labels', 's
ite', 'tag_address_family', 'tag_agent'], 'site': 'bimysite', 'labels': {'ds': 'pgb'}, 'tag_address_family': 'no-ip', 'tag_agent': 'no-agent', 'cb': 'hh'}}]}, 'params': {'bake_agent': 'fals
e'}})

Problem

Internal Server Error

When running the DCD, you may face the following issue:

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Screenshot of Dynamic host management. Error during phase 2.2. Fetching existing hostsImage Added


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ERROR An exception occurred
Traceback (most recent call last):
	File “/omd/sites/mysite/lib/python3/cmk/cee/dcd/connectors.py:, line 229, in _execute_phase2
		Cmk hosts = self._web_api.get_all_hosts()
	File “/omd/sites/mysite/lib/python3.9/site-packages/request/models.py:, line 960, in raise_for_status…
		Raise HTTPError (http_error_msg, response=self)
request.exceptions.HTTPError: 500 Server Error: INTERNAL SERVER ERROR for url:
http://localhost:5005/mysite/check_mk/api/1.0/domain-types/host_config/collections/all


Solution

Grab the URL and paste it in into the browser. Will that work?

Info

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Screenshot of browser window of error Server was about to send an invalid response.Image Added


Note

In that case, custom attributes were used, which are causing caused trouble. In this specific case, the wato plugin "wato_geo_fields.py" from the Checkmk treasures was used.

A workaround would be to remove all custom values and run the DCD again. This issue is already reported internally.

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