Service check is showing UNKN status with summary “check failed - please submit a crash report!” and following errors:
ValueError (Cannot render negative timespan)
Traceback
File "/omd/sites/cmk/lib/python3/cmk/base/checking.py", line 577, in get_aggregated_result
result = _aggregate_results(check_function(**kwargs))
File "/omd/sites/cmk/lib/python3/cmk/base/checking.py", line 808, in _aggregate_results
perfdata, results = _consume_and_dispatch_result_types(subresults)
File "/omd/sites/cmk/lib/python3/cmk/base/checking.py", line 852, in _consume_and_dispatch_result_types
for subr in subresults:
File "/omd/sites/cmk/lib/python3/cmk/base/api/agent_based/register/check_plugins.py", line 89, in filtered_generator
for element in generator(*args, **kwargs):
File "/omd/sites/cmk/lib/python3/cmk/base/plugins/agent_based/utils/uptime.py", line 37, in check
yield from check_levels(
File "/omd/sites/cmk/lib/python3/cmk/base/api/agent_based/utils.py", line 329, in check_levels
info_text = str(render_func(value)) # forgive wrong output type
File "/omd/sites/cmk/lib/python3/cmk/base/api/agent_based/render.py", line 82, in timespan
ts = " ".join(_gen_timespan_chunks(float(seconds), nchunks=2))
File "/omd/sites/cmk/lib/python3/cmk/base/api/agent_based/render.py", line 63, in _gen_timespan_chunks
raise ValueError("Cannot render negative timespan")
Example: Uptime check within docker container Checkmk
