Http.onrequest response timeout

Agent Code
1

What is the maximum time for an http request response?

I find that the server responds with an empty response after 1 minute.
I am performing an operation which takes about 3 minutes and would like to respond after this time.

Is it possible to increase the automatic response timeout?

Toby

2

@TheBarrelShifter , I suppose that normally response are as soon as possible after request. 3 minutes are to long for “normal” response.
It is possible to include in response perviously made request task (in your case - result 3 minutes earlier) or set agent to post to another webpage.

3

I believe we have a 10 minute timeout. What are you using to make the request? That may be timing out…

4

I timed the request with Chrome, and also using Curl from the command line, both time out after exactly 1 minute.

Toby

5

@TheBarrelShifter - typically HTTP response times are set by the client making the request. In this case, the agent isn’t responding with a “timeout” - it simply isn’t responding the expected time.

You can change the timeout in a Curl command by adding the –max-time {seconds} parameter.

If you expect your process to take about 3 minutes, I would give it a 5 minute-ish timeout? Your Curl command would look something like this:

curl https://agent.electricimp.com/agentUrl --max-time 300

6

Thanks beardedinventor for your suggestion.

Unfortunately this doesn’t work though. I added the --max-time 300 to the end of my curl statement just like in your example, but after exactly 1 minute I still get an empty reply from the server…

curl: (52) Empty reply from server

The fact it gets a reply from the server suggests to me that the problem is on the agent end, and that the timeout is 1 minute rather than 10 minutes. Hugo, are you able to confirm your belief that the timeout is 10 minutes?

Toby

7

There’s definitely a one-minute timeout somewhere at the EI end. If you have wireshark running when issuing the curl command, you see the server sending a FIN (i.e., closing the socket) after about a minute.

Increasing that timeout doesn’t seem unreasonable, but it sounds like we need to find it first!

Peter

8

Thankyou for the confirmation Peter.

Toby

9

Ah, I’m getting confused with our outbound timeout, which is 10 minutes…