Overview:
This article provides information on the active connections to a proxy and will help to identify where the majority of them are coming from.
Issue:
Observing a surge in the number of active connections to a proxy.
Cause:
There can be a possibility that a single host might have established multiple TCP connections to the same destination port (with different source ports).
Troubleshooting steps:
~proxy.listeners.connections.active metric tracks the number of currently active connections
If you want to identify from where these connections are coming from then you can run the below command,
netstat -anp --tcp
Example output:
Windows:
Linux:
Also, you can see how many connections telegraf is making by running the below command in the source machine where you installed telegraf ,
lsof -p $(pgrep telegraf)
Example output :
Linux:
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