Help: Subscriber Processing Delays

[Sens]

I am experiencing long delays (30 to 45 seconds) when visitors
subscribe to our email list via the Mailchimp API. (Normal processing
time takes 1 to 3 seconds.)

Mailchimp says they are not receiving any other complaints, today,
related to this issue. What could be the root cause of this? And how
can I fix this problem immediately?

Thank you in advance for your help!

[jesse]

More than likely you have some highly inefficient code being run. If
you look here:

http://apidocs.mailchimp.com/faq/#faq3

There should only be calls to listSubscribe(). Alternately, if
possible, you can collect the signup data and push it to us later (ie,
not in the middle of a page load).

Either way, you are going to need a developer involved. Once they are
looking at things, have them post back here if they run into problems.


jesse

[landor]

Hi Jesse,

We're timing our whole script and the delay is in the single
listSubscribe call.
Our Mailchimp API log shows the same delays, so it's in your system.

Here is a typical time, recorded in our code:
script execution: 31.1832
mailchimp portion: 31.1483

From the API log inside mailchimp, the same request:
31.092s

If we try to subscribe an address that already exists, we get <1s
responses with the appropriate error message.
So it's not our server, and it's not the connection, and it's not your
validation.
There's something funky in your subscribe queue AFTER validation.

[jesse]

Gotcha. In that case you'll either need to deal with slower response
times when there is increased load or convert that into a process that
pushes data to us out-of-band/page load.


jesse