Random hangs on Akamai-fronted websites #564
Description
Since sometime recently, various websites frequently cause 6-hour stalls. It's unclear when this started exactly, but it became very noticeable (i.e. multiple jobs hanging every few hours) in October, I think. They have in common that they're all fronted by Akamai's CDN, i.e. they're all CNAME something.edgekey.net.. Some examples:
www.ea.com,help.ea.com, and more (including outside of ea.com itself)www.adobe.comwww.microsoft.comwww.amd.com,support.amd.comolympics.cominvestors.biontech.demedia.ford.comwww.health.gov.auwww.nokia.comwww.tesla.comir.gitlab.cominvestors.bentley.comwww.climateactive.org.auwww.ups.comwww.businesswire.com
Not all requests on all Akamai-using websites or even all of these listed domains are stalling. Sometimes, connections time out after a long time (15-20 minutes) instead. There may be some relation to the request headers; in one case (investors.biontech.de), it appeared that not including a Connection header would cause the stalls when using HTTP/1.1, but that may not be the whole explanation.