Mercurial > hg > nginx
annotate auto/install @ 6891:749bcfdf097a stable-1.10
HTTP/2: fixed posted streams handling.
A bug was introduced by 82efcedb310b that could lead to timing out of
responses or segmentation fault, when accept_mutex was enabled.
The output queue in HTTP/2 can contain frames from different streams.
When the queue is sent, all related write handlers need to be called.
In order to do so, the streams were added to the h2c->posted queue
after handling sent frames. Then this queue was processed in
ngx_http_v2_write_handler().
If accept_mutex is enabled, the event's "ready" flag is set but its
handler is not called immediately. Instead, the event is added to
the ngx_posted_events queue. At the same time in this queue can be
events from upstream connections. Such events can result in sending
output queue before ngx_http_v2_write_handler() is triggered. And
at the time ngx_http_v2_write_handler() is called, the output queue
can be already empty with some streams added to h2c->posted.
But after 82efcedb310b, these streams weren't processed if all frames
have already been sent and the output queue was empty. This might lead
to a situation when a number of streams were get stuck in h2c->posted
queue for a long time. Eventually these streams might get closed by
the send timeout.
In the worst case this might also lead to a segmentation fault, if
already freed stream was left in the h2c->posted queue. This could
happen if one of the streams was terminated but wasn't closed, due to
the HEADERS frame or a partially sent DATA frame left in the output
queue. If this happened the ngx_http_v2_filter_cleanup() handler
removed the stream from the h2c->waiting or h2c->posted queue on
termination stage, before the frame has been sent, and the stream
was again added to the h2c->posted queue after the frame was sent.
In order to fix all these problems and simplify the code, write
events of fake stream connections are now added to ngx_posted_events
instead of using a custom h2c->posted queue.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Mon, 28 Nov 2016 20:58:14 +0300 |
parents | 1cbd7f87c6ed |
children | 549b13cd793b |
rev | line source |
---|---|
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
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5 |
6419 | 6 if [ $USE_PERL != NO ]; then |
599 | 7 |
8 cat << END >> $NGX_MAKEFILE | |
9 | |
10 install_perl_modules: | |
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11 cd $NGX_OBJS/src/http/modules/perl && \$(MAKE) install |
599 | 12 END |
13 | |
14 NGX_INSTALL_PERL_MODULES=install_perl_modules | |
15 | |
16 fi | |
17 | |
18 | |
2758 | 19 case ".$NGX_SBIN_PATH" in |
20 ./*) | |
21 ;; | |
22 | |
23 *) | |
24 NGX_SBIN_PATH=$NGX_PREFIX/$NGX_SBIN_PATH | |
25 ;; | |
26 esac | |
27 | |
28 | |
6383 | 29 case ".$NGX_MODULES_PATH" in |
30 ./*) | |
31 ;; | |
32 | |
33 *) | |
34 NGX_MODULES_PATH=$NGX_PREFIX/$NGX_MODULES_PATH | |
35 ;; | |
36 esac | |
37 | |
38 NGX_MODULES_PATH=`dirname $NGX_MODULES_PATH/.` | |
39 | |
40 | |
2758 | 41 case ".$NGX_CONF_PATH" in |
42 ./*) | |
43 ;; | |
44 | |
45 *) | |
46 NGX_CONF_PATH=$NGX_PREFIX/$NGX_CONF_PATH | |
47 ;; | |
48 esac | |
49 | |
50 | |
51 NGX_CONF_PREFIX=`dirname $NGX_CONF_PATH` | |
52 | |
53 | |
54 case ".$NGX_PID_PATH" in | |
55 ./*) | |
56 ;; | |
57 | |
58 *) | |
59 NGX_PID_PATH=$NGX_PREFIX/$NGX_PID_PATH | |
60 ;; | |
61 esac | |
62 | |
63 | |
64 case ".$NGX_ERROR_LOG_PATH" in | |
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65 ./* | .) |
2758 | 66 ;; |
67 | |
68 *) | |
69 NGX_ERROR_LOG_PATH=$NGX_PREFIX/$NGX_ERROR_LOG_PATH | |
70 ;; | |
71 esac | |
72 | |
73 | |
74 case ".$NGX_HTTP_LOG_PATH" in | |
75 ./*) | |
76 ;; | |
77 | |
78 *) | |
79 NGX_HTTP_LOG_PATH=$NGX_PREFIX/$NGX_HTTP_LOG_PATH | |
80 ;; | |
81 esac | |
82 | |
83 | |
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84 if test -f man/nginx.8 ; then |
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85 NGX_MAN=man/nginx.8 |
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86 else |
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87 NGX_MAN=docs/man/nginx.8 |
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88 fi |
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89 |
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90 if test -d html ; then |
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91 NGX_HTML=html |
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92 else |
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93 NGX_HTML=docs/html |
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94 fi |
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95 |
469 | 96 cat << END >> $NGX_MAKEFILE |
467 | 97 |
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98 manpage: $NGX_OBJS/nginx.8 |
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99 |
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100 $NGX_OBJS/nginx.8: $NGX_MAN $NGX_AUTO_CONFIG_H |
3788 | 101 sed -e "s|%%PREFIX%%|$NGX_PREFIX|" \\ |
102 -e "s|%%PID_PATH%%|$NGX_PID_PATH|" \\ | |
103 -e "s|%%CONF_PATH%%|$NGX_CONF_PATH|" \\ | |
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104 -e "s|%%ERROR_LOG_PATH%%|${NGX_ERROR_LOG_PATH:-stderr}|" \\ |
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105 < $NGX_MAN > \$@ |
3788 | 106 |
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107 install: build $NGX_INSTALL_PERL_MODULES |
2009 | 108 test -d '\$(DESTDIR)$NGX_PREFIX' || mkdir -p '\$(DESTDIR)$NGX_PREFIX' |
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109 |
6426 | 110 test -d '\$(DESTDIR)`dirname "$NGX_SBIN_PATH"`' \\ |
2009 | 111 || mkdir -p '\$(DESTDIR)`dirname "$NGX_SBIN_PATH"`' |
6426 | 112 test ! -f '\$(DESTDIR)$NGX_SBIN_PATH' \\ |
113 || mv '\$(DESTDIR)$NGX_SBIN_PATH' \\ | |
2009 | 114 '\$(DESTDIR)$NGX_SBIN_PATH.old' |
115 cp $NGX_OBJS/nginx '\$(DESTDIR)$NGX_SBIN_PATH' | |
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116 |
6426 | 117 test -d '\$(DESTDIR)$NGX_CONF_PREFIX' \\ |
2009 | 118 || mkdir -p '\$(DESTDIR)$NGX_CONF_PREFIX' |
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119 |
2009 | 120 cp conf/koi-win '\$(DESTDIR)$NGX_CONF_PREFIX' |
121 cp conf/koi-utf '\$(DESTDIR)$NGX_CONF_PREFIX' | |
122 cp conf/win-utf '\$(DESTDIR)$NGX_CONF_PREFIX' | |
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123 |
6426 | 124 test -f '\$(DESTDIR)$NGX_CONF_PREFIX/mime.types' \\ |
2009 | 125 || cp conf/mime.types '\$(DESTDIR)$NGX_CONF_PREFIX' |
126 cp conf/mime.types '\$(DESTDIR)$NGX_CONF_PREFIX/mime.types.default' | |
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127 |
6426 | 128 test -f '\$(DESTDIR)$NGX_CONF_PREFIX/fastcgi_params' \\ |
2009 | 129 || cp conf/fastcgi_params '\$(DESTDIR)$NGX_CONF_PREFIX' |
6426 | 130 cp conf/fastcgi_params \\ |
2009 | 131 '\$(DESTDIR)$NGX_CONF_PREFIX/fastcgi_params.default' |
1352 | 132 |
6426 | 133 test -f '\$(DESTDIR)$NGX_CONF_PREFIX/fastcgi.conf' \\ |
3383 | 134 || cp conf/fastcgi.conf '\$(DESTDIR)$NGX_CONF_PREFIX' |
135 cp conf/fastcgi.conf '\$(DESTDIR)$NGX_CONF_PREFIX/fastcgi.conf.default' | |
136 | |
6426 | 137 test -f '\$(DESTDIR)$NGX_CONF_PREFIX/uwsgi_params' \\ |
3609 | 138 || cp conf/uwsgi_params '\$(DESTDIR)$NGX_CONF_PREFIX' |
6426 | 139 cp conf/uwsgi_params \\ |
3609 | 140 '\$(DESTDIR)$NGX_CONF_PREFIX/uwsgi_params.default' |
141 | |
6426 | 142 test -f '\$(DESTDIR)$NGX_CONF_PREFIX/scgi_params' \\ |
3637 | 143 || cp conf/scgi_params '\$(DESTDIR)$NGX_CONF_PREFIX' |
6426 | 144 cp conf/scgi_params \\ |
3637 | 145 '\$(DESTDIR)$NGX_CONF_PREFIX/scgi_params.default' |
146 | |
6426 | 147 test -f '\$(DESTDIR)$NGX_CONF_PATH' \\ |
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148 || cp conf/nginx.conf '\$(DESTDIR)$NGX_CONF_PATH' |
2009 | 149 cp conf/nginx.conf '\$(DESTDIR)$NGX_CONF_PREFIX/nginx.conf.default' |
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150 |
6426 | 151 test -d '\$(DESTDIR)`dirname "$NGX_PID_PATH"`' \\ |
2009 | 152 || mkdir -p '\$(DESTDIR)`dirname "$NGX_PID_PATH"`' |
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153 |
6426 | 154 test -d '\$(DESTDIR)`dirname "$NGX_HTTP_LOG_PATH"`' \\ |
155 || mkdir -p '\$(DESTDIR)`dirname "$NGX_HTTP_LOG_PATH"`' | |
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156 |
6426 | 157 test -d '\$(DESTDIR)$NGX_PREFIX/html' \\ |
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158 || cp -R $NGX_HTML '\$(DESTDIR)$NGX_PREFIX' |
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159 END |
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160 |
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161 |
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162 if test -n "$NGX_ERROR_LOG_PATH"; then |
469 | 163 cat << END >> $NGX_MAKEFILE |
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164 |
6426 | 165 test -d '\$(DESTDIR)`dirname "$NGX_ERROR_LOG_PATH"`' \\ |
166 || mkdir -p '\$(DESTDIR)`dirname "$NGX_ERROR_LOG_PATH"`' | |
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167 END |
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168 |
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169 fi |
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170 |
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171 |
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172 if test -n "$DYNAMIC_MODULES"; then |
6383 | 173 cat << END >> $NGX_MAKEFILE |
174 | |
6426 | 175 test -d '\$(DESTDIR)$NGX_MODULES_PATH' \\ |
6383 | 176 || mkdir -p '\$(DESTDIR)$NGX_MODULES_PATH' |
177 END | |
178 | |
179 fi | |
180 | |
181 | |
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182 for ngx_module in $DYNAMIC_MODULES |
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183 do |
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184 ngx_module=$ngx_module$ngx_modext |
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185 |
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186 cat << END >> $NGX_MAKEFILE |
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187 |
6426 | 188 test ! -f '\$(DESTDIR)$NGX_MODULES_PATH/$ngx_module' \\ |
189 || mv '\$(DESTDIR)$NGX_MODULES_PATH/$ngx_module' \\ | |
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190 '\$(DESTDIR)$NGX_MODULES_PATH/$ngx_module.old' |
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191 cp $NGX_OBJS/$ngx_module '\$(DESTDIR)$NGX_MODULES_PATH/$ngx_module' |
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192 END |
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193 |
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194 done |
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195 |
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196 |
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197 # create Makefile |
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198 |
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199 cat << END >> Makefile |
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200 |
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201 build: |
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202 \$(MAKE) -f $NGX_MAKEFILE |
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203 |
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204 install: |
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205 \$(MAKE) -f $NGX_MAKEFILE install |
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206 |
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207 modules: |
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208 \$(MAKE) -f $NGX_MAKEFILE modules |
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209 |
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210 upgrade: |
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211 $NGX_SBIN_PATH -t |
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212 |
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213 kill -USR2 \`cat $NGX_PID_PATH\` |
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214 sleep 1 |
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215 test -f $NGX_PID_PATH.oldbin |
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fix "make upgrade" broken in r2759
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
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216 |
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fix "make upgrade" broken in r2759
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
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217 kill -QUIT \`cat $NGX_PID_PATH.oldbin\` |
4e05bd832e56
fix "make upgrade" broken in r2759
Igor Sysoev <igor@sysoev.ru>
parents:
2758
diff
changeset
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218 END |