https://bz.apache.org/bugzilla/show_bug.cgi?id=66801
Bug ID: 66801
Summary: Numbers reported by mod_status /server-status are
doubled for HTTP/2 requests
Product: Apache httpd-2
Version: 2.4.57
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: mod_http2
Assignee: bugs@httpd.apache.org
Reporter: herr.ernst@gmail.com
Target Milestone: ---
When we enabled HTTP/2 on our servers, we noticed that Apache volume and
requests (as reported by /server-status from mod_status) nearly doubled. It
turned out that all HTTP/2 requests are counted twice, both for number of
requests and volume. Reproduced with local server:
# get 1G large file
$ apachectl restart
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 0
Total kBytes: 0
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 1 # server-status is also a request
Total kBytes: 1
$ mkfile 1g /var/www/1g.bin
$ curl -o /dev/null -k https://localhost:8443/1g.bin
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1024M 100 1024M 0 0 732M 0 0:00:01 0:00:01 --:--:-- 736M
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 4
Total kBytes: 2097731
$ curl -o /dev/null -k https://localhost:8443/1g.bin
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1024M 100 1024M 0 0 740M 0 0:00:01 0:00:01 --:--:-- 743M
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 7
Total kBytes: 4195461
# try with multiple 1M files
$ apachectl restart
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 0
Total kBytes: 0
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 1
Total kBytes: 1
$ mkfile 1m /var/www/1m.bin
$ h2load -c 10 -n 1000 https://localhost:8443/1m.bin > /dev/null
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 2002
Total kBytes: 2048615
# try with HTTP/1.1, numbers are correct here
$ apachectl restart
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 0
Total kBytes: 0
$ h2load --h1 -c 10 -n 1000 https://localhost:8443/1m.bin > /dev/null
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 1001
Total kBytes: 1024001
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Bug ID: 66801
Summary: Numbers reported by mod_status /server-status are
doubled for HTTP/2 requests
Product: Apache httpd-2
Version: 2.4.57
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: mod_http2
Assignee: bugs@httpd.apache.org
Reporter: herr.ernst@gmail.com
Target Milestone: ---
When we enabled HTTP/2 on our servers, we noticed that Apache volume and
requests (as reported by /server-status from mod_status) nearly doubled. It
turned out that all HTTP/2 requests are counted twice, both for number of
requests and volume. Reproduced with local server:
# get 1G large file
$ apachectl restart
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 0
Total kBytes: 0
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 1 # server-status is also a request
Total kBytes: 1
$ mkfile 1g /var/www/1g.bin
$ curl -o /dev/null -k https://localhost:8443/1g.bin
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1024M 100 1024M 0 0 732M 0 0:00:01 0:00:01 --:--:-- 736M
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 4
Total kBytes: 2097731
$ curl -o /dev/null -k https://localhost:8443/1g.bin
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1024M 100 1024M 0 0 740M 0 0:00:01 0:00:01 --:--:-- 743M
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 7
Total kBytes: 4195461
# try with multiple 1M files
$ apachectl restart
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 0
Total kBytes: 0
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 1
Total kBytes: 1
$ mkfile 1m /var/www/1m.bin
$ h2load -c 10 -n 1000 https://localhost:8443/1m.bin > /dev/null
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 2002
Total kBytes: 2048615
# try with HTTP/1.1, numbers are correct here
$ apachectl restart
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 0
Total kBytes: 0
$ h2load --h1 -c 10 -n 1000 https://localhost:8443/1m.bin > /dev/null
$ curl -s "http://localhost:8080/server-status?auto" | grep -E "Total (Acc|kB)"
Total Accesses: 1001
Total kBytes: 1024001
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