on really large files, silent fail reading connection

[jordansread]

e.g., 2961595387 of 5289688432 bytes written, exception message: Connection reset

I think this is often silent with readLines(con), but shouldn't be. Not sure what to do (return NULL if partial?), but we should fix this and use a more robust way of getting/reading the file.

[jordansread]

to be clear, that message is from the server logs, not geoknife. It ends up mostly swallowing a warning about incomplete end of line

[jordansread]

@dblodgett-usgs 's idea is to check the Content-Length in the response headers w/ the file.

[jiwalker-usgs]

The server is saying connection reset, what does it say on the client for the same connection? If the server thinks it is the client and the client thinks its the server, it is probably a middle man of some sort.

[jordansread]

I just get warning incomplete line on ... from R, but I don't use a GET for the file, I read the connection directly which is probably a bad idea.
file is a connection in that case:
https://github.com/USGS-R/geoknife/blob/master/R/parseTimeseries.R#L20

[jordansread]

switching to some other ways of getting the file to test if this is the weak point