Nagios Support Forum

Hello everyone,

I have this alarme on my Nagios server :

CHECK_MEMORY_WINDOWS status : UNKNOWN: An error occured connecting to API. (HTTP error: '500 INTERNAL SERVER ERROR')

on my remote machine (windows server 2008 r2), in the log file of ncpalistener.log, i have this :

2020-12-30 06:54:13,219:ERROR:app:Exception on /api/memory/virtual/ [GET]
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\flask\app.py", line 1817, in wsgi_app
File "C:\Python27\lib\site-packages\flask\app.py", line 1477, in full_dispatch_request
File "C:\Python27\lib\site-packages\flask\app.py", line 1381, in handle_user_exception
File "C:\Python27\lib\site-packages\flask\app.py", line 1475, in full_dispatch_request
File "C:\Python27\lib\site-packages\flask\app.py", line 1461, in dispatch_request
File "C:\ncpa\agent\listener\server.py", line 185, in token_auth_decoration
File "C:\ncpa\agent\listener\server.py", line 946, in api
File "C:\ncpa\agent\listener\nodes.py", line 114, in run_check
File "C:\ncpa\agent\listener\nodes.py", line 334, in run_check
UnboundLocalError: local variable 'perfdata' referenced before assignment



all others services work well :

CHECK_DISK_WINDOWS status OK

CHECK_PROCESS_WINDOWS status OK

GENERIC_PING | GENERIC_PING status OK



Can someone help me ?

Thanks !

Hi @RealGrynomics,

It looks like you have this same issue:

https://github.com/NagiosEnterprises/ncpa/issues/733

Try making the proposed correction or upgrade to 2.3.1. Then check the logs again and post the output if you're still having an issue.

Benjamin
Nagios Support Team