Investigate increasing CURLOPT_LOW_SPEED_TIME for calls which do not send data

[JustinKyleJames]

Some calls do not transfer data but may take time for the S3 provider to handle. One notable one is the S3_copy_object call.

We set this parameter to 15 seconds if the main timeout is set to 0 (no timeout). That may not be long enough for some providers.

There are two options:

1. Simple increase the time for CURLOPT_LOW_SPEED_TIME.
2. Use the default of 0 for CURLOPT_LOW_SPEED_TIME in this case.

The second option seems consistent with the desire to not have timeouts. However, this could possibly result in a situation where a call hangs indefinitely or waits for some type of transport timeout.

[trel]

Have we seen this occur with any particular S3 provider or appliance? Or with an object of a certain large size?

[alanking]

Now that the S3 resource plugin has absorbed this project, I think we should transfer this issue. Thoughts?

[trel]

yes please