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Upstream: avoid duplicate finalization.
A request may be already finalized when ngx_http_upstream_finalize_request()
is called, due to filter finalization: after filter finalization upstream
can be finalized via ngx_http_upstream_cleanup(), either from
ngx_http_terminate_request(), or because a new request was initiated
to an upstream. Then the upstream code will see an error returned from
the filter chain and will call the ngx_http_upstream_finalize_request()
function again.
To prevent corruption of various upstream data in this situation, make sure
to do nothing but merely call ngx_http_finalize_request().
Prodded by Yichun Zhang, for details see the thread at
http://nginx.org/pipermail/nginx-devel/2015-February/006539.html.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 02 Mar 2015 21:44:32 +0300 |
| parents | 9f17e765a21e |
| children | 39a806ccf21e |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. v=`grep 'define NGINX_VERSION' src/core/nginx.h | sed -e 's/^.*"\(.*\)".*/\1/'` cat << END >> $NGX_MAKEFILE $NGX_OBJS/src/http/modules/perl/blib/arch/auto/nginx/nginx.$ngx_perl_dlext: \\ \$(CORE_DEPS) \$(HTTP_DEPS) \\ src/http/modules/perl/ngx_http_perl_module.h \\ $NGX_OBJS/src/http/modules/perl/Makefile cd $NGX_OBJS/src/http/modules/perl && \$(MAKE) rm -rf $NGX_OBJS/install_perl $NGX_OBJS/src/http/modules/perl/Makefile: \\ $NGX_AUTO_CONFIG_H \\ src/core/nginx.h \\ src/http/modules/perl/Makefile.PL \\ src/http/modules/perl/nginx.pm \\ src/http/modules/perl/nginx.xs \\ src/http/modules/perl/typemap sed "s/%%VERSION%%/$v/" src/http/modules/perl/nginx.pm > \\ $NGX_OBJS/src/http/modules/perl/nginx.pm cp -p src/http/modules/perl/nginx.xs $NGX_OBJS/src/http/modules/perl/ cp -p src/http/modules/perl/typemap $NGX_OBJS/src/http/modules/perl/ cp -p src/http/modules/perl/Makefile.PL $NGX_OBJS/src/http/modules/perl/ cd $NGX_OBJS/src/http/modules/perl \\ && NGX_PM_CFLAGS="\$(NGX_PM_CFLAGS) -g $NGX_CC_OPT" \\ NGX_INCS="$CORE_INCS $NGX_OBJS $HTTP_INCS" \\ NGX_DEPS="\$(CORE_DEPS) \$(HTTP_DEPS)" \\ $NGX_PERL Makefile.PL \\ LIB=$NGX_PERL_MODULES \\ INSTALLSITEMAN3DIR=$NGX_PERL_MODULES_MAN END