Mercurial > hg > nginx-quic
view auto/lib/libatomic/conf @ 8047:7015f26aef90
Cache: ignore stale-if-error for 4xx and 5xx codes.
Previously the stale-if-error extension of the Cache-Control upstream header
triggered the return of a stale response for all error conditions that can be
specified in the proxy_cache_use_stale directive. The list of these errors
includes both network/timeout/format errors, as well as some HTTP codes like
503, 504, 403, 429 etc. The latter prevented a cache entry from being updated
by a response with any of these HTTP codes during the stale-if-error period.
Now stale-if-error only works for network/timeout/format errors and ignores
the upstream HTTP code. The return of a stale response for certain HTTP codes
is still possible using the proxy_cache_use_stale directive.
This change also applies to the stale-while-revalidate extension of the
Cache-Control header, which triggers stale-if-error if it is missing.
Reported at
http://mailman.nginx.org/pipermail/nginx/2020-July/059723.html.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Wed, 29 Jul 2020 13:28:04 +0300 |
parents | d620f497c50f |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. if [ $NGX_LIBATOMIC != YES ]; then have=NGX_HAVE_LIBATOMIC . auto/have CORE_INCS="$CORE_INCS $NGX_LIBATOMIC/src" LINK_DEPS="$LINK_DEPS $NGX_LIBATOMIC/src/libatomic_ops.a" CORE_LIBS="$CORE_LIBS $NGX_LIBATOMIC/src/libatomic_ops.a" else ngx_feature="atomic_ops library" ngx_feature_name=NGX_HAVE_LIBATOMIC ngx_feature_run=yes ngx_feature_incs="#define AO_REQUIRE_CAS #include <atomic_ops.h>" ngx_feature_path= ngx_feature_libs="-latomic_ops" ngx_feature_test="long n = 0; if (!AO_compare_and_swap(&n, 0, 1)) return 1; if (AO_fetch_and_add(&n, 1) != 1) return 1; if (n != 2) return 1; AO_nop();" . auto/feature if [ $ngx_found = yes ]; then CORE_LIBS="$CORE_LIBS $ngx_feature_libs" else cat << END $0: error: libatomic_ops library was not found. END exit 1 fi fi