OpenResty

ChangeLog1000011

Tue, 14 Feb 2012 11:01:06 GMT

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Devel Release 1.0.11.11 - 14 February 2012

upgraded LuaNginxModule to 0.5.0rc7.
- bugfix: cosocket API could not be used before ngx.location.capture and its friends for fast network access: tcpsock:send() method did not reset u->waiting properly. thanks 欧远宁.

Devel Release 1.0.11.9 - 13 February 2012

upgraded LuaNginxModule to 0.5.0rc6.
- bugfix: could not compile with nginx 0.8.x. thanks 欧远宁. this bug had appeared in LuaNginxModule v0.5.0rc1.
- feature: added the ngx.sha1_bin method which returns the binary form of the SHA-1 digest.
- bugfix: we incorrectly allowed ngx.null in the string table argument to cosocket:send() method.
- feature: allow use of ngx.null in ngx.log() and print() arguments.
added Piotr Sikora's CoolkitNginxModule 0.2rc1 to the bundle, which is also enabled by default.

Devel Release 1.0.11.7 - 7 February 2012

upgraded LuaNginxModule to 0.5.0rc5.
- feature: added constant ngx.null which is a NULL light userdata to represent nil values in Lua tables and etc. this is compatible with at least lua-cjson library's cjson.null constant.

Devel Release 1.0.11.5 - 7 February 2012

upgraded LuaNginxModule to 0.5.0rc4.
- bugfix: setting ngx.header.last_modified was not implemented fully. thanks Brian Akins.

Devel Release 1.0.11.3 - 6 February 2012

upgraded LuaNginxModule to 0.5.0rc3.
- feature: now tcpsocket:send() method supports lua tables of string fragments which can save unnecessary string concatenation operations on the Lua land that are usually quite expensive.
- bugfix: fixed issues in debugging logs for the cosocket API.
- feature: added user flags support to the shared dictionary API. thanks Brian Akins.
upgraded LuaRedisParserLibrary to 0.09rc6.
- bugfix: remove unneeded string push operations. thanks Brian Akins.

Devel Release 1.0.11.1 - 2 February 2012

upgraded the Nginx core to 1.0.11.
- see the changes here: http://nginx.org/en/CHANGES-1.0
upgraded LuaNginxModule to 0.5.0rc1.
- feature: implemented the coroutine-based TCP and Unix Domain client socket API (aka the "cosocket" API) that is mostly compatible with the LuaSocket library.
- feature: implemented built-in connection pool support for the cosocket API.
- feature: added new function ngx.req.socket() to return a cosocket object for the downstream connection so as to do streaming request body reading. thanks Taylor Weibley for sponsoring the development work.
- optimization: optimized the chain-link and buf recycle logic for the subrequest API and make it share free buffers with the cosocket API.
upgraded PostgresNginxModule to 0.9.
- bugfix: Fix compatibility with poll, select and /dev/poll event models.
- bugfix: Fix compatibility with PostgreSQL 9.x.
- bugfix: Fix compatibility with nginx-1.1.4+.

See ChangeLog1000010 for change log for ngx_openresty 1.0.10.x.

Download

Tue, 14 Feb 2012 10:59:22 GMT

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Releases

Stable release

Most of the users should use the current release, i.e., the latest stable release.

ngx_openresty-1.0.10.48.tar.gz 2.6MB Changes - 1 February 2012

Development release

Development releases are for developers or brave users to try out new bug fixes and new features.

ngx_openresty-1.0.11.11.tar.gz 2.6MB Changes - 14 February 2012

Legacy releases

Sometimes, users may want to download old releases.

ngx_openresty-1.0.10.44.tar.gz 2.5MB Changes - 16 January 2012
ngx_openresty-1.0.10.24.tar.gz 2.5MB Changes - 11 December 2011
ngx_openresty-1.0.9.10.tar.gz 2.5MB Changes - 16 November 2011
ngx_openresty-1.0.8.26.tar.gz 2.5MB Changes - 3 November 2011
ngx_openresty-1.0.6.22.tar.gz 2.4MB Changes - 7 October 2011
ngx_openresty-1.0.6.12.tar.gz 2.4MB Changes - 21 September 2011
ngx_openresty-1.0.5.1.tar.gz 2.4MB Changes - 4 September 2011
ngx_openresty-1.0.4.2.tar.gz 2.2MB Changes - 9 August 2011
ngx_openresty-1.0.4.1.tar.gz 2.3MB Changes - 30 July 2011
ngx_openresty-1.0.4.0.tar.gz 2.3MB Changes - 12 July 2011
ngx_openresty-0.8.54.9.tar.gz 2.2MB Changes - 8 July 2011
ngx_openresty-0.8.54.8.tar.gz 2.2MB Changes - 1 July 2011
ngx_openresty-0.8.54.7.tar.gz 2.7MB Changes - 27 June 2011
ngx_openresty-0.8.54.6.tar.gz 2.7MB Changes
ngx_openresty-0.8.54.5.tar.gz 2.7MB Changes

See Installation for installation instructions.

CoolkitNginxModule

Mon, 13 Feb 2012 12:59:00 GMT

This module is collection of small and useful Nginx add-ons.

Project homepage and documentation: https://github.com/FRiCKLE/ngx_coolkit/

This module is enabled by default and could be disabled by passing --without-http_coolkit_module option to OpenResty's ./configure script.

Resources

Wed, 08 Feb 2012 08:45:00 GMT

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English Articles

My beautiful dark twisted reverse-proxy LRU cache

http://mikeferrier.com/2011/05/14/my-beautiful-dark-twisted-reverse-proxy-LRU-cache/

Day 41 - Setting up ngx_openresty (WAS: testing Test::Nginx)

http://www.nginx-discovery.com/2011/03/day-41-setting-up-ngxopenresty-was.html

Chinese Articles

An introduction to OpenResty

http://wdicc.com/intro-openresty/

Nginx 3rd-Party Module Experiments Journal

http://chenxiaoyu.org/2011/10/30/nginx-modules.html

Recommending OpenResty - An Nginx Version with Fully Capable Addons

http://wendal.net/338.html

Constructing Efficient and Transparent Caching Mechanism with MemcNginxModule and SrcacheNginxModule

http://www.codinglabs.org/html/nginx-memc-and-srcache.html

The Nginx Session Module

http://chenxiaoyu.org/2011/11/09/nginx-session.html

Nginx-Lua HTTP 401 Basic Authentication

http://chenxiaoyu.org/2012/02/08/nginx-lua-401-auth.html

Nginx Variable Tutorials

http://blog.sina.com.cn/openresty

Installation

Tue, 07 Feb 2012 03:06:00 GMT

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If you haven't downloaded the OpenResty source code tarball, please go to the Download page first.

Basically, building and installing OpenResty is as simple as

tar xzvf ngx_openresty-VERSION.tar.gz
cd ngx_openresty-VERSION/
./configure --with-luajit
make
make install

where VERSION should be replaced by a concrete version number of OpenResty, like 0.8.54.6.
If you have problems while building or want finer control over the building process, please read on.

Prerequisites

You should have perl 5.6.1+, libreadline, libpcre, libssl installed into your system. For Linux, you should also ensure that ldconfig is in your PATH environment.

Debian and Ubuntu users

You're recommended to install the following packages using apt-get:

apt-get install libreadline-dev libncurses5-dev libpcre3-dev libssl-dev perl

Fedora and RedHat users

You're recommended to install the following packages using yum:

yum install readline-devel pcre-devel openssl-devel

Mac OS X (Darwin) users

You're recommended to install prerequisites PCRE using some package management tool, like Homebrew:

brew install pcre

Alternatively you can install PCRE from source all by yourself :)

FreeBSD users

You need to install the following ports:

devel/gmake
security/openssl
devel/pcre

Solaris 11 users

You need to install the following packages from the official repository:

gcc-3
SUNWlibm

Usually it's just as simple as

pfexec pkg install gcc-3 SUNWlibm

Build OpenResty

Download

download the latest ngx_openresty tarball can be fetched from the Download page and unpack it like this:

tar xzvf ngx_openresty-VERSION.tar.gz

where VERSION should be replaced by real version numbers like 0.8.54.6.

./configure

Then enter the ngx_openresty-VERSION/ directory, and type the following command to configure:

./configure --with-luajit

By default, --prefix=/usr/local/openresty is assumed. The --with-luajit option is strongly recommended because LuaJIT 2.0 can give a nice performance boost in terms of both CPU time and memory footprint and its VM is also fully resume-able, unlike the default standard Lua 5.1 interpreter. Enabling LuaJIT 2.0 should work on Linux, Mac OS X, FreeBSD, Solaris, and others. You should only disable LuaJIT 2.0 when your platform does not support LuaJIT.

You can specify various options, as in

./configure --prefix=/opt/openresty \
            --with-luajit \
            --without-http_redis2_module \
            --with-http_iconv_module \
            --with-http_postgres_module \
            -j2

All of the Nginx configure file options can be used here, including --add-module=PATH. Try ./configure --help to see more options available.

Errors in running the ./configure script can be found in the file build/nginx-VERSION/objs/autoconf.err where VERSION should be replaced by a concrete version number of OpenResty, like 0.8.54.6.

Notes for Solaris users

For Solaris, it's common to install libraries like OpenSSL to /lib, so when it complaints about missing OpenSSL and you have indeed already installed it, specify the --with-ld-opt='-L/lib' option.

make

Now you can compile everything up using the command

make

If your machine has multiple cores and your make supports the jobserver feature, you can compile things in parallel like this:

make -j2

assuming you have 2 CPU cores.

make install

If all the previous steps go without problems, you can install OpenResty into your system by typing the command

make install

On Linux, it often requires sudo to gain root access.

ReleaseNote

Thu, 02 Feb 2012 05:01:00 GMT

ChangeLog1000010

Thu, 02 Feb 2012 04:52:00 GMT

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Stable Release 1.0.10.48 - 1 February 2012

upgraded LuaNginxModule to 0.4.1.

Components bundled with this release:

LuaJIT-2.0.0-beta9
array-var-nginx-module-0.03rc1
auth-request-nginx-module-0.2
drizzle-nginx-module-0.1.2rc6
echo-nginx-module-0.38rc1
encrypted-session-nginx-module-0.02
form-input-nginx-module-0.07rc5
headers-more-nginx-module-0.17rc1
iconv-nginx-module-0.10rc5
lua-5.1.4
lua-cjson-1.0.3
lua-rds-parser-0.04
lua-redis-parser-0.09rc5
memc-nginx-module-0.13rc3
nginx-1.0.10
ngx_devel_kit-0.2.17
ngx_lua-0.4.1
ngx_postgres-0.9rc2
rds-csv-nginx-module-0.04
rds-json-nginx-module-0.12rc7
redis2-nginx-module-0.08rc2
set-misc-nginx-module-0.22rc5
srcache-nginx-module-0.13rc3
upstream-keepalive-nginx-module-0.7
xss-nginx-module-0.03rc8

Devel Release 1.0.10.47 - 29 January 2012

upgraded LuaNginxModule to 0.4.1rc4.
- bugfix: ngx_http_lua_header_filter_init was called with an argument which actually accepts none. this could cause compilation errors at least with gcc 4.3.4 as reported in github issue #80. thanks bigplum (Simon).

Devel Release 1.0.10.45 - 19 January 2012

upgraded LuaNginxModule to 0.4.1rc3.
- bugfix: fixed all the warnings from the clang static analyzer.
- bugfix: ngx.exit, ngx.redirect, ngx.exec, and ngx.req.set_uri(uri, true) could return (they should never return as per the documentation). this bug had appeared in ngx_lua v0.3.1rc4 and ngx_openresty 1.0.6.13. thanks @cyberty for reporting it.
- feature: allow use of the DDEBUG macro from the outside (via the -D DDEBUG=1 cc opton).
upgraded DrizzleNginxModule to v0.1.2rc6.
- bugfix: fixed all the warnings from the clang static analyzer.
- feature: allow use of the DDEBUG macro from the outside (via the -D DDEBUG=1 cc opton).
upgraded EchoNginxModule to 0.38rc1, SetMiscNginxModule to 0.22rc5, HeadersMoreNginxModule to 0.17rc1, and MemcNginxModule to 0.13rc3, to allow use of the DDEBUG macro from the outside (via the -D DDEBUG=1 cc opton).

Stable Release 1.0.10.44 - 16 January 2012

upgraded EchoNginxModule to 0.37.
upgraded HeadersMoreNginxModule to 0.16.
bugfix: fixed compatibility of the packaging scripts on Darwin and *BSD. thanks nightsailer and Piotr Sikora.

Components bundled with this release:

LuaJIT-2.0.0-beta9
array-var-nginx-module-0.03rc1
auth-request-nginx-module-0.2
drizzle-nginx-module-0.1.2rc4
echo-nginx-module-0.37
encrypted-session-nginx-module-0.02
form-input-nginx-module-0.07rc5
headers-more-nginx-module-0.16
iconv-nginx-module-0.10rc5
lua-5.1.4
lua-cjson-1.0.3
lua-rds-parser-0.04
lua-redis-parser-0.09rc5
memc-nginx-module-0.13rc2
nginx-1.0.10
ngx_devel_kit-0.2.17
ngx_lua-0.4.0
ngx_postgres-0.9rc2
rds-csv-nginx-module-0.04
rds-json-nginx-module-0.12rc7
redis2-nginx-module-0.08rc2
set-misc-nginx-module-0.22rc4
srcache-nginx-module-0.13rc3
upstream-keepalive-nginx-module-0.7
xss-nginx-module-0.03rc8

Devel Release 1.0.10.43 - 12 January 2012

upgraded LuaNginxModule to 0.4.0.
upgraded EncryptedSessionNginxModule to 0.02.
- bugfix: the -lssl option broke nginx linking when --with-openssl=DIR is specified. thanks charlieyang for reporting this issue.
bugfix: fixed issues with relative path DIR in the --with-openssl=DIR option for ./configure.

Devel Release 1.0.10.41 - 9 January 2012

upgraded UpstreamKeepaliveNginxModule to 0.7.
- Bugfix: unbuffered connection might not be kept alive under Linux.
- Bugfix: module could not be built on Windows.
- Bugfix: module could not be built without the ngx_http_ssl_module.
- Feature: https connections support (requires patches).
- Bugfix: invalid connections might be cached.
- Bugfix: the "[alert] ... open socket ... left in connection ..." messages were logged on nginx worker process gracefull exit for each cached connection; the bug had appeared in version 0.3.
upgraded EchoNginxModule to 0.37rc8.
- bugfix: fixed two spots that we did not check null pointers returned by the memory allocator.
- bugfix: attempt to fix places where ngx_time_update might not be compiled properly.

Devel Release 1.0.10.39 - 4 January 2012

upgraded LuaNginxModule to v0.3.1rc45.
- bugfix: ngx.req.get_uri_args and ngx.req.get_post_args now only parse up to 100 arguments by default. but one can specify the optional argument to these two methods to specify a custom maximum number of args. thanks Tzury Bar Yochay for reporting this.
- bugfix: ngx.req.get_headers now only parse up to 100 request headers by default. but one can specify the optional argument to this method to specify a custom maximum number of headers.

Devel Release 1.0.10.37 - 30 December 2011

upgraded LuaNginxModule to v0.3.1rc43.
- bugfix: removing builtin headers via ngx.req.clear_header and its equivalent in huge request headers with 20+ entries could result in data loss. thanks Chris Dumoulin for the patch in github issue #6.
- bugfix: could not compile with Nginx 1.1.12+ because Nginx 1.1.12 changed its regex API. now we call PCRE API directly and require at least PCRE 8.21 for the PCRE JIT support in our ngx.re API (since PCRE 8.20 had a bug in its JIT engine that it did not honor pcre_malloc and pcre_free at all).

Devel Release 1.0.10.35 - 30 December 2011

upgraded HeadersMoreNginxModule to v0.16rc7.
- bugfix: removing builtin headers in huge request headers with 20+ entries could result in data loss. thanks Chris Dumoulin for the patch in github issue #6.
bugfix: the install phony target did not depend on the all phony target in the Makefile generated by ./configure. thanks 姚伟斌 for reporting this issue.

Devel Release 1.0.10.33 - 29 December 2011

bugfix: the ./configure script's --add-module option did not accept relative path values. thanks 姚伟斌 for the patch.

Devel Release 1.0.10.31 - 25 December 2011

upgraded LuaJIT to 2.0.0beta9.
- changes: http://luajit.org/changes.html
upgraded LuaNginxModule to v0.3.1rc42.
- bugfix: ngx.req.set_header might cause invalid memory reads because Nginx request header values must be null terminated. thanks Maxim Dounin.
- bugfix: ngx.var.VARIABLE might evaluate to nil even if there is a valid value because the Nginx variable value's valid flag might not be initialized properly. this bad had appeared in v0.3.1rc40.
upgraded HeadersMoreNginxModule to v0.16rc6.
- bugfix: the more_set_input_headers directive might cause invalid memory reads because Nginx request header values must be null terminated. thanks Maxim Dounin.

Devel Release 1.0.10.29 - 17 December 2011

upgraded LuaNginxModule to v0.3.1rc41.
- bugfix: ngx.req.set_header and ngx.req.clear_header did not handle the Accept-Encoding request headers properly. thanks 天街夜色.
upgraded HeadersMoreNginxModule to 0.16rc5.
- bugfix: more_set_input_headers and more_clear_input_headers did not handle the Accept-Encoding request headers properly. thanks 天街夜色.

Devel Release 1.0.10.27 - 16 December 2011

upgraded LuaNginxModule to v0.3.1rc40.
- bugfix: ngx.flush(true) could not be used before I/O calls like ngx.location.capture. this bug had appeared in v0.3.1rc34.
- bugfix: ngx.var.VARIABLE did not evaluate to nil when the Nginx variable's valid flag is 0.
- docs: various documentation improvements. thanks Nginx User.
- bugfix: there were various places where we did not check the pointer returned by the memory allocator.
upgraded SetMiscNginxModule to v0.22rc4.
- bugfix: fixed one place that does not check the pointer returned by the memory allocator.
- src: converted CRLF in the source files and test files to LF.
bugfix: some old version of shell cp command does not support trailing slashes in the destination argument and could break our ./configure script. thanks 姚伟斌 for reporting it.

Devel Release 1.0.10.25 - 14 December 2011

upgraded SrcacheNginxModule to v0.13rc3.
- bugfix: fixed a regression with XssNginxModule for cache hits. this bug had appeared in v0.13rc1. thanks 万珣新.
- bugfix: we did not cache the Location response header at all for 301/302 responses.
- bugfix: we should not blindly cache the Accept-Ranges: bytes response headers regardless of the actual current requests.
upgraded XssNginxModule to v0.03rc8.
- bugfix: fixed a few debug-level log messages; the old text was misleading.

Stable Release 1.0.10.24 - 11 December 2011

Same as the devel version 1.0.10.23.

Components bundled with this release:

LuaJIT-2.0.0-beta8
array-var-nginx-module-0.03rc1
auth-request-nginx-module-0.2
drizzle-nginx-module-0.1.2rc4
echo-nginx-module-0.37rc7
encrypted-session-nginx-module-0.01
form-input-nginx-module-0.07rc5
headers-more-nginx-module-0.16rc4
iconv-nginx-module-0.10rc5
lua-5.1.4
lua-cjson-1.0.3
lua-rds-parser-0.04
lua-redis-parser-0.09rc5
memc-nginx-module-0.13rc2
nginx-1.0.10
ngx_devel_kit-0.2.17
ngx_lua-0.3.1rc38
ngx_postgres-0.9rc2
rds-csv-nginx-module-0.04
rds-json-nginx-module-0.12rc7
redis2-nginx-module-0.08rc2
set-misc-nginx-module-0.22rc3
srcache-nginx-module-0.13rc2
upstream-keepalive-nginx-module-0.3
xss-nginx-module-0.03rc7

Devel Release 1.0.10.23 - 5 December 2011

upgraded RdsJsonNginxModule to v0.12rc7.
- added more debug level error log outputs to ease debugging (as discussed in github issue #2).
upgraded XssNginxModule to v0.03rc7.
- now we use the ngx_log_debugN macros to emit debugging outputs instead of info level error logging because the latter is costly in production.
upgraded LuaNginxModule to 0.3.1rc38.
- added constant ngx.HTTP_GATEWAY_TIMEOUT (504) per Fry-kun in github issue #73.

Devel Release 1.0.10.21 - 30 November 2011

fixed a serious regression for Linux AIO in nginx-1.0.10-epoll_check_stale_wev.patch, thanks Maxim Dounin for the patch's patch.

Devel Release 1.0.10.19 - 29 November 2011

upgraded LuaNginxModule to 0.3.1rc37.
- bugfix: use of the ngx.re API might lead to errors like pcre_compile() failed: failed to get memory in ... due to incorrect pcre_malloc and pcre_free handling. thanks Vittly for reporting this as github issue #72.
- docs: massive documentation improvements. thanks Nginx User.

Devel Release 1.0.10.17 - 26 November 2011

upgraded LuaNginxModule to 0.3.1rc36.
- bugfix: fixed the ngx_log_debugN macros which failed to compile without --with-debug. thanks @ldmiao for reporting it.

Devel Release 1.0.10.15 - 26 November 2011

upgraded LuaNginxModule to 0.3.1rc35.
- bugfix: now we check timed out downstream connections in our write event handler.

Devel Release 1.0.10.13 - 25 November 2011

upgraded LuaNginxModule to 0.3.1rc34.
- feature: added wait boolean argument to ngx.flush() to support synchronous flushing; ngx.flush(true) will not return until all the data has been flushed into the system send buffer or the send timeout has expired.

Devel Release 1.0.10.11 - 24 November 2011

upgraded LuaNginxModule to 0.3.1rc33.
- feature: added new Lua API ngx.now to return the current time (including the ms part as the decimal part). thanks 林青.
- feature: added new Lua API ngx.update_time to forcibly updating nginx's time cache.
- docs: massive documentation improvement done by Nginx User.

Devel Release 1.0.10.9 - 24 November 2011

upgraded XssNginxModule to 0.03rc6.
- bugfix: now we use signed char explicitly instead of the vague char type which could be unsigned by default in certain systems like PowerPC. thanks Dmitry E. Oboukhov.
upgraded MemcNginxModule to 0.13rc2.
- bugfix: now we use signed char explicitly instead of the vague char type which could be unsigned by default in certain systems like PowerPC. thanks Dmitry E. Oboukhov.
upgraded Redis2NginxModule to 0.08rc2.
- bugfix: when char defaults to unsigned char, the Ragel-based Redis response parser could not accept non-ascci bytes. thanks Dmitry E. Oboukhov.

Devel Release 1.0.10.7 - 23 November 2011

upgraded LuaNginxModule to 0.3.1rc31.
- feature: added opions copy_all_vars and vars to ngx.location.capture and ngx.location.capture_multi. thanks Marcus Clyne for the patch.
- bugfix: fixed a bad regression in ngx.location.capture_multi when the request option table is specified. this bug had appeared in ngx_lua 0.3.1rc26 and ngx_openresty 1.0.9.1.

Devel Release 1.0.10.5 - 21 November 2011

upgraded LuaNginxModule to 0.3.1rc30.
- feature: added new regex options "j" and "d" to ngx.re.match, ngx.re.gmatch, ngx.re.sub, and ngx.re.gsub so as to enable the PCRE JIT mode and DFA mode, respectively. thanks @姜大炮 for providing the patch.

Devel Release 1.0.10.3 - 17 November 2011

upgraded LuaNginxModule to 0.3.1rc29.
- feature: added ngx.hmac_sha1. thanks drdrxp.
- docs: documented the long-existent ngx.md5 and ngx.md5_bin APIs.
- docs: massive documentation improvements. thanks Nginx User.

Devel Release 1.0.10.1 - 16 November 2011

upgraded the Nginx core to 1.0.10.

See ChangeLog1000009 for change log for ngx_openresty 1.0.9.x.

eBooks

Mon, 16 Jan 2012 13:52:00 GMT

Chinese eBooks for Nginx & OpenResty

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"agentzh's Nginx tutorials" (version 2012.01.16)
- MOBI Format (Kindle users)
- EPUB Format (Sony, Apple and other users)
- PDF Format (PC users)

DonateOnline

Thu, 12 Jan 2012 10:22:00 GMT

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Donate With PayPal

If you'd like to make a one-time donation to OpenResty, you can use PayPal to make it fast and easy.

PayPal members can donate directly from their PayPal accounts by logging in via the PayPal website and clicking "send money" to agentzh@gmail.com, or just click the button below.
Non-PayPal members can still pay with a credit card without signing up for PayPal. Click the button below then follow the instructions at the bottom of the page for non-PayPal members.

Either way, it's a convenient way to support ocean wildlife.

Donate with AliPay (支付宝)

If you're in China, it's usually more convenient to send donation is to send money via the AliPay to my account agentzh@yahoo.cn or just click the following button:

Any amount will be highly appreciated!

MainMenu

Thu, 12 Jan 2012 10:21:00 GMT

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Presentations

Tue, 29 Nov 2011 12:57:00 GMT

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Here goes a list of slides that I used in my talks regarding OpenResty.

These slides are powered by the slides.htm slide-making engine based on AJAX.

Note: Please use the arrow keys or pageup/pagedown keys on your keyboard to switch pages.

Year 2011

Applications of ngx_openresty and perl in lz.taobao.com

This talk was given at Beijing Perl Workshop 2011.

Watch the video online: http://v.ku6.com/show/TY8Vre59guTE_C8o.html

View in your web browser: http://agentzh.org/misc/slides/perl-lz-apps/

Download the slides: http://agentzh.org/misc/slides/perl-lz-apps.tar.gz

Year 2010

Introduction to nginx.conf scripting

This talk was given at the Beijing Perl Workshop 2010 April meeting and the Beijing OpenParty 2010 June event.

View in your web browser: http://agentzh.org/misc/slides/nginx-conf-scripting/

Download the slides: http://agentzh.org/misc/slides/nginx-conf-scripting.tar.gz

Please note that ngx_eval module is no longer recommended because we're in more favor of ngx_lua nowadays.

Recent developments in nginx.conf scripting

This talk was given at the Beijing OpenParty 2010 June event.

View in your web browser: http://agentzh.org/misc/slides/recent-dev-nginx-conf/

Download the slides: http://agentzh.org/misc/slides/recent-dev-nginx-conf.tar.gz

The state of the art of nginx.conf scripting

This talk was given at the ECUG 2010 event.

Watch the (Chinese-speech) video online: http://v.ku6.com/show/D00rqtnRwKzJdIsB.html

View the (English) slides in your web browser: http://agentzh.org/misc/slides/nginx-state-of-the-art/

Download the slides: http://agentzh.org/misc/slides/nginx-state-of-the-art.tar.gz

DrizzleNginxModule

Mon, 28 Nov 2011 06:39:00 GMT

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This is an nginx upstream module that talks to MySQL and/or Drizzle database servers by libdrizzle.

This ngx_drizzle module is not enabled by default. You should specify the --with-http_drizzle_module optiotn while configuring OpenResty.

The libdrizzle C library is no longer bundled by OpenResty. You need to download the drizzle server tarball from https://launchpad.net/drizzle.

Latest drizzle7 release does not support building libdrizzle 1.0 separately and requires a lot of external dependencies like Boost and Protobuf which are painful to install. The last version supporting building libdrizzle 1.0 separately is 2011.07.21. You can download it from here:

http://agentzh.org/misc/nginx/drizzle7-2011.07.21.tar.gz

When you get the drizzle7 2011.07.21 release tarball, you can install libdrizzle-1.0 like this:

tar xzvf drizzle7-2011.07.21.tar.gz
cd drizzle7-2011.07.21/
./configure --without-server
make libdrizzle-1.0
make install-libdrizzle-1.0

Please ensure that you have the python command point to a python2 interpreter. It's known that on recent Arch Linux distribution, python is linked to python3 by default, and while running make libdrizzle-1.0 will yield the following error:

  File "config/pandora-plugin", line 185
    print "Dependency loop detected with %s" % plugin['name']
                                           ^
SyntaxError: invalid syntax
make: *** [.plugin.scan] Error 1

You can fix this by pointing python temporarily to python2.

When you install the libdrizzle-1.0 library to a custom path prefix, you can specify the libdrizzle prefix to OpenResty like this:

cd /path/to/ngx_openresty-VERSION/
./configure --with-libdrizzle=/path/to/drizzle --with-http_drizzle_module

Documentation page: http://wiki.nginx.org/HttpDrizzleModule

Project page: https://github.com/chaoslawful/drizzle-nginx-module

About

Thu, 17 Nov 2011 04:03:00 GMT

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This bundle is maintained by us, agentzh, chaoslawful, Kindy Lin, Liseen Wan, and Jiale Zhi. It was originally sponsored by Taobao.com, Alibaba Group.

Because most of the nginx modules are developed by the bundle maintainers, it can ensure
that all these modules are played well together.

The bundled software components are copyrighted by the respective copyright holders.

This web site is a TiddlyWiki page that is under the version control of a repository on GitHub:

http://github.com/agentzh/openresty.org

Feel free to fork it or just contact us to obtain a git commit bit if you want to edit and improve this site.

Benchmark

Wed, 16 Nov 2011 12:34:00 GMT

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HelloWorld

Testing the performance of a HelloWorld server does not mean many things but it does tell us where the ceiling is.

The HelloWorld server based on OpenResty is described in the GettingStarted document.

Below is the result using the command http_load -p 10 -s 5 http://localhost:8080/ on my ThinkPad T400 laptop with ngx_openresty 1.0.10.1:

139620 fetches, 10 max parallel, 1.67544e+06 bytes, in 5.00001 seconds
12 mean bytes/connection
27923.9 fetches/sec, 335087 bytes/sec
msecs/connect: 0.0531258 mean, 4.076 max, 0.014 min
msecs/first-response: 0.258796 mean, 5.353 max, 0.067 min
HTTP response codes:
  code 200 -- 139620

So on my laptop, for only a single worker nginx server, we've got ~28k r/s. The memory footprint of the node process under load is 38.0m VIRT, 2.5m RES.

For comparison, HelloWorld servers using nginx + php-fpm 5.2.8 gives ~6k r/s:

http_load -p 10 -s 5 url
29703 fetches, 10 max parallel, 326733 bytes, in 5 seconds
11 mean bytes/connection
5940.6 fetches/sec, 65346.6 bytes/sec
msecs/connect: 0.0394686 mean, 1.172 max, 0.02 min
msecs/first-response: 1.62616 mean, 6.744 max, 0.719 min
HTTP response codes:
  code 200 -- 29703

And node.js v0.6.1 yields 10k r/s:

51206 fetches, 10 max parallel, 614472 bytes, in 5 seconds
12 mean bytes/connection
10241.2 fetches/sec, 122894 bytes/sec
msecs/connect: 0.0356567 mean, 1.316 max, 0.019 min
msecs/first-response: 0.916395 mean, 14.236 max, 0.077 min
HTTP response codes:
  code 200 -- 51206

The memory footprint of the node process under load is 629m VIRT, 50m RES.

RoutingMySQLQueriesBasedOnURIArgs

Wed, 16 Nov 2011 04:22:00 GMT

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This sample demonstrates how to route incoming requests to different MySQL queries based on different combinations of URI query arguments, preserving streaming output capabilities provided by DrizzleNginxModule and RdsJsonNginxModule.

This demo uses the modules DrizzleNginxModule, LuaNginxModule, RdsJsonNginxModule, and SetMiscNginxModule bundled by OpenResty.

Here's the complete code listing for our nginx.conf:

worker_processes  2;
error_log logs/error.log warn;

events {
    worker_connections 1024;
}

http {
    upstream backend {
        drizzle_server 127.0.0.1:3306 protocol=mysql
                       dbname=ngx_test user=ngx_test password=ngx_test;
        drizzle_keepalive max=10 overflow=ignore mode=single;
    }

    server {
        listen 8080;

        location @cats-by-name {
            set_unescape_uri $name $arg_name;
            set_quote_sql_str $name;
            drizzle_query 'select * from cats where name=$name';
            drizzle_pass backend;
            rds_json on;
        }

        location @cats-by-id {
            set_quote_sql_str $id $arg_id;
            drizzle_query 'select * from cats where id=$id';
            drizzle_pass backend;
            rds_json on;
        }

        location = /cats {
            access_by_lua '
                if ngx.var.arg_name then
                    return ngx.exec("@cats-by-name")
                end

                if ngx.var.arg_id then
                    return ngx.exec("@cats-by-id")
                end
            ';

            rds_json_ret 400 "expecting \"name\" or \"id\" query arguments";
        }
    }
}

And then we start our Nginx server with this configure file and test with our /cats service like this:

$ curl 'localhost:8080/cats'
{"errcode":400,"errstr":"expecting \"name\" or \"id\" query arguments"}

$ curl 'localhost:8080/cats?name=bob'
[{"id":3,"name":"bob"}]

$ curl 'localhost:8080/cats?id=2'
[{"id":2,"name":null}]

The actual output rows may vary depending on the actual contents in your cats table anyway.

DynamicRoutingBasedOnRedis

Wed, 16 Nov 2011 04:17:00 GMT

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This sample demonstrates how to use Redis to route incoming requests to different HTTP backends based on the requests' User-Agent header.

This demo uses the modules Redis2NginxModule, LuaNginxModule, LuaRedisParserLibrary, and SetMiscNginxModule bundled by OpenResty.

Here's the complete code listing for our nginx.conf:

worker_processes  2;
error_log logs/error.log info;

events {
    worker_connections 1024;
}

http {
    upstream apache.org {
        server apache.org;
    }

    upstream nginx.org {
        server nginx.org;
    }

    server {
        listen 8080;

        location = /redis {
            internal;
            set_unescape_uri $key $arg_key;
            redis2_query get $key;
            redis2_pass 127.0.0.1:6379;
        }

        location / {
            set $target '';
            access_by_lua '
                local key = ngx.var.http_user_agent
                local res = ngx.location.capture(
                    "/redis", { args = { key = key } }
                )

                print("key: ", key)

                if res.status ~= 200 then
                    ngx.log(ngx.ERR, "redis server returned bad status: ",
                        res.status)
                    ngx.exit(res.status)
                end

                if not res.body then
                    ngx.log(ngx.ERR, "redis returned empty body")
                    ngx.exit(500)
                end

                local parser = require "redis.parser"
                local server, typ = parser.parse_reply(res.body)
                if typ ~= parser.BULK_REPLY or not server then
                    ngx.log(ngx.ERR, "bad redis response: ", res.body)
                    ngx.exit(500)
                end

                print("server: ", server)

                ngx.var.target = server
            ';

            proxy_pass http://$target;
        }
    }
}

And then let's start the redis server on the localhost:6379:

$ ./redis-server  # default port is 6379

and feed some keys into this using the redis-cli utility:

   $ ./redis-cli
   redis> set foo apache.org
   OK
   redis> set bar nginx.org
   OK

And then let's test our nginx app!

   $ curl --user-agent foo localhost:8080
   <apache.org home page goes here>

   $ curl --user-agent bar localhost:8080
   <nginx.org home page goes here>

To further tune the performance, one could enable the connection pool for the redis connections, as documented in Redis2NginxModule's README.

Before you benchmarking your interface defined here, please ensure that you've raised the error log level to warn in your nginx.conf file like this:

error_log logs/error.log warn;

because flushing error log is a very expensive operation and can hurt performance a lot.

Samples

Wed, 16 Nov 2011 04:17:00 GMT

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ChangeLog1000009

Wed, 16 Nov 2011 03:14:00 GMT

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Stable Release 1.0.9.10 - 16 November 2011

bugfix: fixed the error message length while the ./configure script fails.

Components bundled in this release:

LuaJIT-2.0.0-beta8
array-var-nginx-module-0.03rc1
auth-request-nginx-module-0.2
drizzle-nginx-module-0.1.2rc4
echo-nginx-module-0.37rc7
encrypted-session-nginx-module-0.01
form-input-nginx-module-0.07rc5
headers-more-nginx-module-0.16rc4
iconv-nginx-module-0.10rc5
lua-5.1.4
lua-cjson-1.0.3
lua-rds-parser-0.04
lua-redis-parser-0.09rc5
memc-nginx-module-0.13rc1
nginx-1.0.9
ngx_devel_kit-0.2.17
ngx_lua-0.3.1rc28
ngx_postgres-0.9rc2
rds-csv-nginx-module-0.04
rds-json-nginx-module-0.12rc6
redis2-nginx-module-0.08rc1
set-misc-nginx-module-0.22rc3
srcache-nginx-module-0.13rc2
upstream-keepalive-nginx-module-0.3
xss-nginx-module-0.03rc5

Devel Release 1.0.9.9 - 13 November 2011

upgraded DrizzleNginxModule to 0.1.2rc4.
- bugfix: it might prematurly remove a write event when still busily connecting to the database from the event model.

Devel Release 1.0.9.7 - 10 November 2011

applied a patch to add new directives log_escape_non_ascii to prevent escaping non-ascii bytes in access log variable values. requested by @姜大炮. It can be turned on and off, and default to on just as the standard Nginx version.

Devel Release 1.0.9.5 - 9 November 2011

upgraded LuaNginxModule to 0.3.1rc28.
- bugfix: Cache-Control header modification might introduce empty value headers when using with the standard ngx_headers module.
upgraded HeadersMoreNginxModule to 0.16rc4.
- bugfix: Cache-Control header modification might introduce empty value headers when using with the standard ngx_headers module.

Devel Release 1.0.9.3 - 9 November 2011

upgraded LuaNginxModule to 0.3.1rc27.
- feature: added the ngx.encode_args method to encode a Lua code to a URI query string. thanks 郭颖 (0597虾).
- feature: ngx.location.capture and ngx.exec now supports the same Lua args table format as in ngx.encode_args. thanks 郭颖 (0597虾).
upgraded DrizzleNginxModule to 0.1.2rc3.
- bugfix: fixed issues with poll, rtsig, and select used by the Nginx event model by eliminating the poll syscall performed by libdrizzle. This also gives rise to a nice speedup (about 10% in simple cases).
bugfix: nginx-1.0.9-variable_header_ignore_no_hash.patch might introduce a memory overflow issue in multi-header variables. thanks Markus Linnala.

Devel Release 1.0.9.1 - 8 November 2011

upgraded the Nginx core to 1.0.9.
applied the epoll_check_stale_wev patch to the Nginx 1.0.9 core. thanks @晓旭XX.
upgraded LuaNginxModule to 0.3.1rc26.
- feature: added the ctx option to ngx.location.capture: you can now specify a custom Lua table to pass to the subrequest as its ngx.ctx. thanks @hugozhu.
- bugfix: fixed compatibility with nginx 0.8.54. thanks @0579虾.
upgraded PostgresNginxModule to 0.9rc2
- bugfix: now we log an error message when the postgres_pass target is not found at all and returns 500 in this case instead of returning empty response.
- bugfix: we should no longer return NGX_AGAIN when the re-polling returns IO WAIT in case of the "connection made" state.
- feature: added some debugging outputs which be enabled by passing the --with-debug option while building Nginx or OpenResty.
- bugfix: fixed compatibility issues with Nginx 1.1.4+: ngx_chain_update_chains now requires a pool argument.
upgraded LuaRdsParserLibrary to 0.04.
- bugfix: fixed a serious memory leak reported by bearnard.
upgraded XssNginxModule to 0.03rc5.
- bugfix: the callback argument value parser did not accept JavaScript identifier names started with underscores. thanks Sam Mulube.

See ChangeLog1000008 for change log for ngx_openresty 1.0.8.x.

ChangeLog1000008

Thu, 03 Nov 2011 09:08:00 GMT

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Stable Release 1.0.8.26 - 3 November 2011

now we require gmake (Gnu make) for *BSD systems even if LuaJIT is not enabled. thanks @lhmwzy.
upgraded the official hotfix patch #4 for the standard Lua 5.1.4 interpreter.

Components bundled in this release:

LuaJIT-2.0.0-beta8
array-var-nginx-module-0.03rc1
auth-request-nginx-module-0.2
drizzle-nginx-module-0.1.2rc2
echo-nginx-module-0.37rc7
encrypted-session-nginx-module-0.01
form-input-nginx-module-0.07rc5
headers-more-nginx-module-0.16rc3
iconv-nginx-module-0.10rc5
lua-5.1.4
lua-cjson-1.0.3
lua-rds-parser-0.03
lua-redis-parser-0.09rc5
memc-nginx-module-0.13rc1
nginx-1.0.8
ngx_devel_kit-0.2.17
ngx_lua-0.3.1rc23
ngx_postgres-0.9rc1
rds-csv-nginx-module-0.04
rds-json-nginx-module-0.12rc6
redis2-nginx-module-0.08rc1
set-misc-nginx-module-0.22rc3
srcache-nginx-module-0.13rc2
upstream-keepalive-nginx-module-0.3
xss-nginx-module-0.03rc3

Devel Release 1.0.8.25 - 27 October 2011

upgraded LuaNginxModule to 0.3.1rc23.
- bugfix: ndk.set_var.DIRECTIVE had a memory issue and might pass empty argument values to the directive being called. thanks dannynoonan.

Devel Release 1.0.8.23 - 27 October 2011

upgraded LuaNginxModule to 0.3.1rc22.
- feature: implemented new methods add, replace, incr, and delete for ngx.shared.DICT.
- bugfix: made the set method of ngx.shared.DICT return 3 values: success, err, and forcible.
- bugfix: fixed spots of -Werror=unused-but-set-variable warning issued by gcc 4.6.0.

Devel Release 1.0.8.21 - 26 October 2011

upgraded LuaNginxModule to 0.3.1rc21.
- feature: added new directive lua_shared_dict: http://wiki.nginx.org/HttpLuaModule#lua_shared_dict
- feature: added Lua API for the shm-based dictionary: http://wiki.nginx.org/HttpLuaModule#ngx.shared.DICT
upgraded EchoNginxModule to 0.37rc7.
- bugfix: fixed a memory issue in both echo_sleep and echo_blocking_sleep: we should not pass ngx_str_t strings to atof() which expects C strings.

Devel Release 1.0.8.19 - 24 October 2011

upgraded LuaNginxModule to 0.3.1rc20.
- bugfix: no longer free request body buffers that are not allocated by ourselves.
- bugfix: now we allow setting ngx.var.VARIABLE to nil.

Devel Release 1.0.8.17 - 22 October 2011

upgraded LuaNginxModule to 0.3.1rc19.
- feature: now we apply the patch to the nginx core so as to allow main request body modifications: https://github.com/agentzh/ngx_openresty/blob/master/patches/nginx-1.0.8-allow_request_body_updating.patch
- feature: added new Lua API ngx.req.set_body_file(): http://wiki.nginx.org/HttpLuaModule#ngx.req.set_body_file
- feature: added new Lua API ngx.req.set_body_data(): http://wiki.nginx.org/HttpLuaModule#ngx.req.set_body_data
- bugfix: lua_need_request_body should not skip requests with methods other than POST and PUT. thanks Nginx User.

Devel Release 1.0.8.15 - 19 October 2011

upgraded LuaNginxModule to 0.3.1rc17.
- feature: added new Lua functions ngx.req.read_body(), ngx.req.discard_body(), ngx.req.get_body_data(), and ngx.req.get_body_file(). see the docs here: http://wiki.nginx.org/HttpLuaModule#ngx.req.read_body
- bugfix: fixed hanging issues when using ngx.exec() within rewrite_by_lua and access_by_lua. thanks Nginx User for reporting it.

Devel Release 1.0.8.13 - 16 October 2011

upgraded LuaNginxModule to 0.3.1rc16.
- fixed compilation failures when --with-debug is turned off.
- now we prohibit use of true jump argument in ngx.req.set_uri() in contexts other than rewrite_by_lua and rewrite_by_lua_file. a lua exception will be thrown if the context is incorrect.

Devel Release 1.0.8.11 - 16 October 2011

upgraded LuaNginxModule to 0.3.1rc14.
- now we change the ngx.req.set_uri() API a bit by changing the optional argument break_cycle to jump. so now it will not trigger location jump by default (because the jump argument is false by default) and in case jump is given true, the function will re-search locations and jump to the new location and never return.

Devel Release 1.0.8.9 - 16 October 2011

upgraded LuaNginxModule to 0.3.1rc13.
- now we implemented ngx.req.set_uri() and ngx.req.set_uri_args() to emulate ngx_rewrite's rewrite directive (without redirect or permanent modifiers). thanks Vladimir Protasov (utros) and Nginx User.
- now we skip rewrite phase Lua handlers altogether if ngx_rewrite's rewrite directive issue a location re-lookup by changing URIs (but not including rewrite ... break). thanks Nginx User.
- added constant ngx.HTTP_METHOD_NOT_IMPLEMENTED (501). thanks Nginx User.

Devel Release 1.0.8.7 - 15 October 2011

upgraded SrcacheNginxModule to 0.13rc2.
- bugfix: we now only cache 200, 301, and 302 responses by default.
- feature: implemented new directive srcache_store_statuses to allow the user to specify the response status code list that is to be stored into the cache.

Devel Release 1.0.8.5 - 13 October 2011

upgraded LuaNginxModule to 0.3.1rc11.
- bugfix: now we explicitly clear all the modules' contexts before dump to named location with ngx.exec.
upgraded EchoNginxModule to 0.37rc6.
- bugfix: now we explicitly clear all the modules' contexts before dump to named location with echo_exec.
- bugfix: bugfix: echo_exec may hang when running after echo_sleep (or other I/O interruption calls): we should have called ngx_http_finalize_request on NGX_DONE to decrement r->main->count anyway.
applied the patch to the Nginx core that always clears all modules' contexts in ngx_http_named_location.

Devel Release 1.0.8.3 - 13 October 2011

upgraded LuaNginxModule to 0.3.1rc10.
- bugfix: calling ngx.exec() to jump to a named location did not clear the context object of LuaNginxModule properly and might cause evil problems. thanks Nginx User.
upgraded IconvNginxModule to 0.10rc5.
- bugfix: fixed -Wset-but-not-used warnings issued by gcc 4.6.0. thanks 支家乐 (Calio).

Devel Release 1.0.8.1 - 10 October 2011

upgraded EchoNginxModule to 0.37rc5.
- bugfix: now we properly set the Content-Length request header for subrequests.
upgraded LuaNginxModule to 0.3.1rc9.
- feature: now for HTTP 1.0 requests, we disable the automatic full buffering mode if the user sets the Content-Length response header before sending out the headers. this allows streaming output for HTTP 1.0 requests if the content length can be calculated beforehand. thanks 李子义.
- bugfix: now we properly support setting the Cache-Control response header via the ngx.header.HEADER interface.
- bugfix: no longer set header hash to 1. use the ngx_hash_key_lc instead.
upgraded HeadersMoreNginxModule to 0.16rc3.
- bugfix: we should set header hash using ngx_hash_key_lc, not simply to 1.
- bugfix: fixed setting Cache-Control response headers. we should properly prepare the r->cache_control array as well.
upgraded SrcacheNginxModule to 0.13rc1.
- implemented response status line and general response header caching and added new directives srcache_store_hide_header and srcache_store_pass_header to control which headers to cache and which not.
- added new directive srcache_response_cache_control to control whether honor response headers Cache-Control and Expires, default on.
- we disable srcache_store automatically by default when Cache-Control: max-age=0 and Expires: <date no more recently than now> are seen.
- implemented builtin nginx variable $srcache_expire for automatic expiration time calculation based on response headers Cache-Control (max-age) and Expires; also added new directives srcache_max_expire and srcache_default_expire.
- implemented the srcache_store_no_cache directive; now by default, we do not store responses with the header Cache-Control: no-cache into the cache.
- implemented the srcache_store_no_store directive (default off). Now by default, responses with the header Cache-Control: no-store will not be stored into the cache.
- implemented the srcache_store_private directive to control whether to store responses with the header Cache-Control: private.
- implemented the srcache_request_cache_control directive to allow request headers Cache-Control: no-cache or Pragma: no-cache to force bypassing cache lookup. it also honors the request header Cache-Control: no-store. this directive is turned off by default.
- now we check response header Content-Encoding by default and a non-empty header value will skip srcache_store; also introduced a new directive named srcache_ignore_content_encoding to ignore this response header.
- implemented the srcache_methods directive to specify request methods that are cacheable, by default, only GET and HEAD are cacheable.
- bugfix: we no longer set header hash to 1; we use ngx_hash_key_lc instead.
- bugfix: when we skip srcache_fetch by means of srcache_fetch_skip, we should not automatically skip srcache_store.
- bugfix: now we ignore the Content-Length header (if any) of the main request for the subrequests.
- bugfix: there might be a segfault when failing to allocate memory in ngx_http_srcache_add_copy_chain. thanks Shaun savage.
upgraded RdsJsonNginxModule to 0.12rc6.
- bugfix: fixed compatibility with nginx 1.1.4+.
upgraded RdsCsvNginxModule to 0.04.
- bugfix: fixed compatibility issues with nginx 1.1.4+.
- optimization: now we only register our filters when rds_csv is actually used in nginx.conf.
upgraded Redis2NginxModule to 0.08rc1.
- bugfix: fixed compatibility with nginx 1.1.4+.
upgraded DrizzleNginxModule to 0.1.2rc2.
- bugfix: fixed compatibility with nginx 1.1.4+
upgraded MemcNginxModule to 0.13rc1.
- bugfix: fixed compatibility with nginx 1.1.4+.
upgraded SetMiscNginxModule to v0.22rc3.
- minor code cleanup.
applied the patch for the variable-header-ignore-no-hash issue. see http://forum.nginx.org/read.php?29,216062 for details.
based on OpenResty 1.0.6.22 and upgraded the Nginx core to 1.0.8.

See ChangeLog1000006 for change log for ngx_openresty 1.0.6.x.