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Previously only one address was used by the listen directive handler even if
host name resolved to multiple addresses. Now a separate listening socket is
created for each address.
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Previously, listenings sockets were not cloned if the worker_processes
directive was specified after "listen ... reuseport".
This also simplifies upcoming configuration check on the number
of worker connections, as it needs to know the number of listening
sockets before cloning.
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The phase is added instead of the try_files phase. Unlike the old phase, the
new one supports registering multiple handlers. The try_files implementation is
moved to a separate ngx_http_try_files_module, which now registers a precontent
phase handler.
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Signed-off-by: Alex Zhang <zchao1995@gmail.com>
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The IPV6_V6ONLY macro is now checked only while parsing appropriate flag
and when using the macro.
The ipv6only field in listen structures is always initialized to 1,
even if not supported on a given platform. This is expected to prevent
a module compiled without IPV6_V6ONLY from accidentally creating dual
sockets if loaded into main binary with proper IPV6_V6ONLY support.
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The SPDY support is removed, as it's incompatible with the new module.
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Such configurations have very limited use, introduce various problems and
are not officially supported.
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When configured, an individual listen socket on a given address is
created for each worker process. This allows to reduce in-kernel lock
contention on configurations with high accept rates, resulting in better
performance. As of now it works on Linux and DragonFly BSD.
Note that on Linux incoming connection requests are currently tied up
to a specific listen socket, and if some sockets are closed, connection
requests will be reset, see https://lwn.net/Articles/542629/. With
nginx, this may happen if the number of worker processes is reduced.
There is no such problem on DragonFly BSD.
Based on previous work by Sepherosa Ziehau and Yingqi Lu.
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There is no need to set "i" to 0, as it's expected to be 0 assuming
the bindings are properly sorted, and we already rely on this when
explicitly set hport->naddrs to 1. Remaining conditional code is
replaced with identical "hport->naddrs = i + 1".
Identical modifications are done in the mail and stream modules,
in the ngx_mail_optimize_servers() and ngx_stream_optimize_servers()
functions, respectively.
No functional changes.
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It's now enough to specify proxy_protocol option in one listen directive to
enable it in all servers listening on the same address/port. Previously,
the setting from the first directive was always used.
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There is no real difference on all known platforms, but it's still wrong.
Found by Coverity (CID 400876).
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Client address specified in the PROXY protocol header is now
saved in the $proxy_protocol_addr variable and can be used in
the realip module.
This is currently not implemented for mail.
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Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
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---
auto/unix | 12 ++++++++++++
src/core/ngx_connection.c | 32 ++++++++++++++++++++++++++++++++
src/core/ngx_connection.h | 4 ++++
src/http/ngx_http.c | 4 ++++
src/http/ngx_http_core_module.c | 21 +++++++++++++++++++++
src/http/ngx_http_core_module.h | 3 +++
6 files changed, 76 insertions(+)
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Location tree was always constructed using case-sensitive comparison, even
on case-insensitive systems. This resulted in incorrect operation if
uppercase letters were used in location directives. Notably, the
following config:
location /a { ... }
location /B { ... }
failed to properly map requests to "/B" into "location /B".
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the end (closes #187). Failure to do so could result in several listen
sockets to be created instead of only one listening on wildcard address.
Reported by Roman Odaisky.
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The "so_keepalive" directive in mail module was deprecated.
Thanks to Vsevolod Stakhov for initial work.
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See here for report:
http://mailman.nginx.org/pipermail/nginx-ru/2011-September/043288.html
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Fixed nearby grammar errors.
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the same fix for IPv4 addresses has been made in r2584
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the same fix for IPv4 addresses has been made in r2581
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the bug has been introduced in r3765
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may be used at merge phase
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dereferencing pointer 'sin' does break strict-aliasing rules
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overwriting
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