Reverse proxy and TCP_MISS_ABORTED:FIRSTUP_PARENT

[Jakob Curdes <jc@xxxxxxxxxxxxxxx>]

Hi, we are running a squid 3.4 in accel mode for one https site. We 
frequently see somthing like

PUT https://domain.com/file.txt HTTP/1.1" 0 0 
TCP_MISS_ABORTED:FIRSTUP_PARENT

I tried to find out what this should mean; does it tell me that the 
parent did not respond in time or does this refer to the client?

Regards,
Jakob