Mercurial > hg > nginx-quic
view docs/GNUmakefile @ 4010:74a93d3fdd85
Fixing cpu hog with all upstream servers marked "down".
The following configuration causes nginx to hog cpu due to infinite loop
in ngx_http_upstream_get_peer():
upstream backend {
server 127.0.0.1:8080 down;
server 127.0.0.1:8080 down;
}
server {
...
location / {
proxy_pass http://backend;
}
}
Make sure we don't loop infinitely in ngx_http_upstream_get_peer() but stop
after resetting peer weights once.
Return 0 if we are stuck. This is guaranteed to work as peer 0 always exists,
and eventually ngx_http_upstream_get_round_robin_peer() will do the right
thing falling back to backup servers or returning NGX_BUSY.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 18 Aug 2011 16:52:38 +0000 |
| parents | 36ce2e430bdd |
| children | b427290fb6bc |
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VER= $(shell grep 'define NGINX_VERSION' src/core/nginx.h \ | sed -e 's/^.*\"\(.*\)\"/\1/') NGINX= nginx-$(VER) TEMP= tmp CP= $(HOME)/java define XSLScript java -cp $(CP)/xsls/saxon.jar:$(CP)/xsls/xsls.jar \ com.pault.StyleSheet \ -x com.pault.XX -y com.pault.XX \ $(1) docs/xsls/dump.xsls \ | sed 's/ *$$//;/^ *$$/N;/\n *$$/D' > $(2) if [ ! -s $(2) ]; then rm $(2); fi; test -s $(2) endef define XSLT xmllint --noout --valid $2 xsltproc -o $3 \ $(shell echo $4 \\ | sed -e "s/\([^= ]*\)=\([^= ]*\)/--param \1 \"'\2'\"/g") \ $1 $2 endef changes: $(TEMP)/$(NGINX)/CHANGES.ru \ $(TEMP)/$(NGINX)/CHANGES $(TEMP)/$(NGINX)/CHANGES.ru: docs/xml/nginx/changes.xml \ docs/xslt/changes.xslt test -d $(TEMP)/$(NGINX) || mkdir -p $(TEMP)/$(NGINX) xsltproc --param lang "'ru'" \ -o $(TEMP)/$(NGINX)/CHANGES.ru \ docs/xslt/changes.xslt docs/xml/nginx/changes.xml $(TEMP)/$(NGINX)/CHANGES: docs/xml/nginx/changes.xml \ docs/xslt/changes.xslt test -d $(TEMP)/$(NGINX) || mkdir -p $(TEMP)/$(NGINX) xsltproc --param lang "'en'" \ -o $(TEMP)/$(NGINX)/CHANGES \ docs/xslt/changes.xslt docs/xml/nginx/changes.xml docs/xslt/changes.xslt: docs/xsls/changes.xsls $(call XSLScript, docs/xsls/changes.xsls, $@) html: \ docs/html/http/ngx_http_core_module.html docs/html/http/ngx_http_core_module.html: \ docs/xml/http/ngx_http_core_module.xml \ docs/xslt/module.xslt \ docs/dtd/module.dtd $(call XSLT, docs/xslt/module.xslt, $<, $@) docs/xslt/module.xslt: docs/xsls/module.xsls \ docs/xslt/directive.xslt \ docs/xslt/content.xslt $(call XSLScript, $<, $@) docs/xslt/%.xslt: docs/xsls/%.xsls $(call XSLScript, $<, $@)