[HTCondor-users] file transfer GoAhead delays

[David Schultz <david.schultz@xxxxxxxxxxxxxxxx>]

Hi,

I was taking a look at EP starter logs to debug something else, and saw a curious pattern. For nearly every file transfer there is a delay of several seconds (5-15s is typical) waiting for a "GoAhead" from the AP to initiate the transfer, whether that's a download or upload, and whether the transfer involves the AP or only external servers.

Are there any causes of this, or knobs I should tweak? Our AP is fairly busy, so I could see that being part of the issue.

I'm somewhat motivated to fix this, as 10 seconds idling multiplied by 500k jobs daily is several wasted machines worth of compute.

Best,

David