Recently, I asked on the list whether anyone had seen this phenomenon : > What I'm refering to is getting downloaded files in slices, > eg using Wget, a piece of the file downloads for 22 sec , then stops; > Wget tries again & another 22 sec piece comes down the pipe, then > stops. This can go on for hours with a big file > & doesn't seem related to the local time of day. > My guess is that the server has been programmed to stop after 22 sec > in an effort to share access among many clients, > but it is irritating & also suggests the server needs faster hardware. > Have others noticed this -- it seems to be a recent innovation -- > & is it a known ploy of server managers ?
> NB This is not the same as traffic jams. > That sometimes happens here & may persist for 1 - 2 weeks , > but it feels just like driving on the highway when 1 lane is closed. > That probably is some piece of the Internet or ISP under repair or test. I now have an explicit example of a server doing this : 503: hold> wget --no-check-certificate -c http://www.math.wisc.edu/~keisler/keislercalc-2-12.pdf --2012-07-01 15:07:18-- http://www.math.wisc.edu/~keisler/keislercalc-2-12.pdf Resolving www.math.wisc.edu... 144.92.166.196 Connecting to www.math.wisc.edu|144.92.166.196|:80... connected. HTTP request sent, awaiting response... 302 Found Location: https://www.math.wisc.edu/formMail/throttle.php?URL=/~keisler/keislercalc-2-12.pdf [following] --2012-07-01 15:07:18-- https://www.math.wisc.edu/formMail/throttle.php?URL=/~keisler/keislercalc-2-12.pdf Connecting to www.math.wisc.edu|144.92.166.196|:443... connected. WARNING: The certificate of `www.math.wisc.edu' is not trusted. WARNING: The certificate of `www.math.wisc.edu' hasn't got a known issuer. HTTP request sent, awaiting response... 200 OK Length: 24184097 (23M) [application/pdf] Saving to: `keislercalc-2-12.pdf' 6% [==========> ] 1,638,400 64.5K/s eta 38m 5s NB the word 'throttle' in the 2nd URL. It has just completed a 2nd slice downloading 3 % of the file each time. Yesterday when I tried, it refused to honor the '-c' flag, which made downloading impossible, but today it seems to be honoring it. BTW the Internet is ordinarily responsive at the moment here. Has anyone else come across this ? Any thoughts or comments ? -- ========================,,============================================ SUPPORT ___________//___, Philip Webb ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto TRANSIT `-O----------O---' purslowatchassdotutorontodotca
