Hi all, I'd like to ask if there are plans somebody to fix the issue with wrong $bytes_sent in aio threads mode. If no, is there a chance to get some hit or direction, so I can try fix it myself and contribute to better and bug free nginx?
Thanks in advance, George On Fri, May 15, 2015 at 11:37 PM, Valentin V. Bartenev <vb...@nginx.com> wrote: > On Friday 15 May 2015 17:45:44 George . wrote: > > Hi, > > > > I found following bug in nginx-1.8.0: > > > > if aio is configured with threads support - sometime (one in thousands > > requests) $bytes_sent contains only length of the header. I'm attaching > my > > nginx.conf, build params and simple python script I'm using the reproduce > > this issue. > > > > Here is the output of test script when the problem appears: > > . > > . > > . > > received: 101700000 from access_log : 101700000 on 26 iteration > > 127.0.0.1 - - [15/May/2015 17:27:45] "GET /test HTTP/1.0" 200 - > > 127.0.0.1 - - [15/May/2015 17:27:47] "GET /test HTTP/1.0" 200 - > > received: 101700000 from access_log : 101700000 on 27 iteration > > 127.0.0.1 - - [15/May/2015 17:27:58] "GET /test HTTP/1.0" 200 - > > 127.0.0.1 - - [15/May/2015 17:28:00] "GET /test HTTP/1.0" 200 - > > received: 101700000 from access_log : 101690000 on 28 iteration > > test failed!! > > > > also in access_log file" > > > > . > > . > > . > > 10170 GET /test HTTP/1.1 > > 10170 GET /test HTTP/1.1 > > 10170 GET /test HTTP/1.1 > > 170 GET /test HTTP/1.1 > > 10170 GET /test HTTP/1.1 > > 10170 GET /test HTTP/1.1 > > . > > . > > > > Thank you for the report. > > It caused by a race condition between sendfile() task completion > and connection close notifications. If the latter comes first, > nginx logs that client prematurely closed connection. > > Unfortunately, it's not easy to fix. I'll look at it later. > > wbr, Valentin V. Bartenev > > _______________________________________________ > nginx-devel mailing list > nginx-devel@nginx.org > http://mailman.nginx.org/mailman/listinfo/nginx-devel >
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