Mercurial > hg > nginx-quic
annotate conf/uwsgi_params @ 7281:bd6563e81cea
Limit req: improved handling of negative times.
Negative times can appear since workers only update time on an event
loop iteration start. If a worker was blocked for a long time during
an event loop iteration, it is possible that another worker already
updated the time stored in the node. As such, time since last update
of the node (ms) will be negative.
Previous code used ngx_abs(ms) in the calculations. That is, negative
times were effectively treated as positive ones. As a result, it was
not possible to maintain high request rates, where the same node can be
updated multiple times from during an event loop iteration.
In particular, this affected setups with many SSL handshakes, see
http://mailman.nginx.org/pipermail/nginx/2018-May/056291.html.
Fix is to only update the last update time stored in the node if the
new time is larger than previously stored one. If a future time is
stored in the node, we preserve this time as is.
To prevent breaking things on platforms without monotonic time available
if system time is updated backwards, a safety limit of 60 seconds is
used. If the time stored in the node is more than 60 seconds in the future,
we assume that the time was changed backwards and update lr->last
to the current time.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 30 May 2018 15:40:34 +0300 |
parents | 62869a9b2e7d |
children |
rev | line source |
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import original ngx_http_uwsgi_module version
Igor Sysoev <igor@sysoev.ru>
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1 |
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2 uwsgi_param QUERY_STRING $query_string; |
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3 uwsgi_param REQUEST_METHOD $request_method; |
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4 uwsgi_param CONTENT_TYPE $content_type; |
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import original ngx_http_uwsgi_module version
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5 uwsgi_param CONTENT_LENGTH $content_length; |
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6 |
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7 uwsgi_param REQUEST_URI $request_uri; |
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style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
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8 uwsgi_param PATH_INFO $document_uri; |
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9 uwsgi_param DOCUMENT_ROOT $document_root; |
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10 uwsgi_param SERVER_PROTOCOL $server_protocol; |
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Added the REQUEST_SCHEME parameter.
Maxim Dounin <mdounin@mdounin.ru>
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11 uwsgi_param REQUEST_SCHEME $scheme; |
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352a7b025f2e
Added HTTPS param with Apache-like behaviour to fastcgi/scgi/uwsgi_params (fixes #38).
Valentin Bartenev <vbart@nginx.com>
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12 uwsgi_param HTTPS $https if_not_empty; |
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13 |
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14 uwsgi_param REMOTE_ADDR $remote_addr; |
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15 uwsgi_param REMOTE_PORT $remote_port; |
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16 uwsgi_param SERVER_PORT $server_port; |
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17 uwsgi_param SERVER_NAME $server_name; |