@abh3 , I was testing today getting some files of a stashcache with a squid in front of it. ```console http_proxy="http://cvmfs-1.t2.ucsd.edu:3128" curl -v http://stashcache.t2.ucsd.edu:8000/user/dweitzel/public/blast/queries/query1 -O % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* About to connect() to proxy cvmfs-1.t2.ucsd.edu port 3128 (#0) * Trying 169.228.130.85... * Connected to cvmfs-1.t2.ucsd.edu (169.228.130.85) port 3128 (#0) > GET http://stashcache.t2.ucsd.edu:8000/user/dweitzel/public/blast/queries/query1 HTTP/1.1 > User-Agent: curl/7.29.0 > Host: stashcache.t2.ucsd.edu:8000 > Accept: */* > Proxy-Connection: Keep-Alive > < HTTP/1.1 200 OK < Content-Length: 103 < Date: Tue, 22 Oct 2019 16:03:59 GMT < X-Cache: MISS from cvmfs-1.t2.ucsd.edu < Via: 1.1 cvmfs-1.t2.ucsd.edu (squid/frontier-squid-4.4-2.1.osg34.el7) < Connection: keep-alive < { [data not shown] 100 103 100 103 0 0 10496 0 --:--:-- --:--:-- --:--:-- 11444 * Connection #0 to host cvmfs-1.t2.ucsd.edu left intac ``` And as you can see it is always a miss. From the squid logs it seems as Xrootd always tells it the file has changed, but clearly it has not: ``` [0903] root@cvmfs-1 /var/log/squid# tail -f -n 100 access.log | grep query1 169.228.130.5 - - [22/Oct/2019:09:03:59.781 -0700] "GET http://stashcache.t2.ucsd.edu:8000/user/dweitzel/public/blast/queries/query1 HTTP/1.1" 200 315 TCP_REFRESH_MODIFIED:HIER_DIRECT 2 "- -" "-" "curl/7.29.0" 169.228.130.5 - - [22/Oct/2019:09:10:48.349 -0700] "GET http://stashcache.t2.ucsd.edu:8000/user/dweitzel/public/blast/queries/query1 HTTP/1.1" 200 315 TCP_REFRESH_MODIFIED:HIER_DIRECT 3 "- -" "-" "curl/7.29.0" ``` @bbockelm any ideas? @DrDaveD am I understanding the squid message correctly? -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1073 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1