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How to determine/debug if connections are being reused? #95
Description
I'm attempting to enable connection reuse for a simple application using this module, but I'm not sure how to verify whether connections are being reused.
I tried adding some simple logging after each request to look at the agent status. Is that the right way to determine if it's working?
Using the default options, I tried making three requests using an HTTPS agent, and I see the following statuses printed using JSON.stringify(agent.getCurrentStatus()). Am I right to think that connections aren't being reused here? Is there any way to debug connection reuse?
Agent status: {"createSocketCount":1,"createSocketErrorCount":0,"closeSocketCount":0,"errorSocketCount":0,"timeoutSocketCount":0,"requestCount":1,"freeSockets":{"redacted.com:443::::::::::::::::::":1},"sockets":{},"requests":{}}
Agent status: {"createSocketCount":1,"createSocketErrorCount":0,"closeSocketCount":0,"errorSocketCount":0,"timeoutSocketCount":0,"requestCount":1,"freeSockets":{"redacted.com:443::::::::::::::::::":1},"sockets":{},"requests":{}}
Agent status: {"createSocketCount":1,"createSocketErrorCount":0,"closeSocketCount":0,"errorSocketCount":0,"timeoutSocketCount":0,"requestCount":1,"freeSockets":{"redacted.com:443::::::::::::::::::":1},"sockets":{},"requests":{}}```
Activity
Ghazgkull commentedon Jan 26, 2021
After further exploration, I think the problem was that I was only using the agent to make serial requests. By swapping my agent scope to reuse the same agent for a large number of parallel requests, the status data started to really make sense and clearly showed connection reuse.
For example: