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view docs/xml/change_log_conf.xml @ 8125:cffaf3f2eec8
Lingering close for connections with pipelined requests.
This is expected to help with clients using pipelining with some constant
depth, such as apt[1][2].
When downloading many resources, apt uses pipelining with some constant
depth, a number of requests in flight. This essentially means that after
receiving a response it sends an additional request to the server, and
this can result in requests arriving to the server at any time. Further,
additional requests are sent one-by-one, and can be easily seen as such
(neither as pipelined, nor followed by pipelined requests).
The only safe approach to close such connections (for example, when
keepalive_requests is reached) is with lingering. To do so, now nginx
monitors if pipelining was used on the connection, and if it was, closes
the connection with lingering.
[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=973861#10
[2] https://mailman.nginx.org/pipermail/nginx-devel/2023-January/ZA2SP5SJU55LHEBCJMFDB2AZVELRLTHI.html
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 02 Feb 2023 23:38:48 +0300 |
parents | 76bc29f06168 |
children |
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<?xml version="1.0" ?> <!DOCTYPE configuration SYSTEM "../dtd/change_log_conf.dtd" > <configuration> <length>76</length> <start> *) </start> <indent> </indent> <changes lang="ru"> <title>Изменения в </title> <length>66</length> <bugfix>Исправление</bugfix> <feature>Добавление</feature> <change>Изменение</change> <security>Безопасность</security> <workaround>Изменение</workaround> </changes> <changes lang="en"> <title>Changes with </title> <length>65</length> <bugfix>Bugfix</bugfix> <feature>Feature</feature> <change>Change</change> <security>Security</security> <workaround>Workaround</workaround> <month> Jan </month> <month> Feb </month> <month> Mar </month> <month> Apr </month> <month> May </month> <month> Jun </month> <month> Jul </month> <month> Aug </month> <month> Sep </month> <month> Oct </month> <month> Nov </month> <month> Dec </month> </changes> </configuration>