线上快速定位硬盘 I/O 高的 Python 代码路径(使用 OpenResty XRay)
Drizzle Nginx Module
Yichun Zhang , 26 Aug 2011 (created 21 Jun 2011)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.
When you get the drizzle7 release tarball, you can install libdrizzle-1.0 like this:
tar xzvf drizzle7-VERSION.tar.gz
cd drizzle7-VERSION/
./configure --without-server
make libdrizzle-1.0
make install-libdrizzle-1.0
where VERSION
is the drizzle7 release version number like 2011.06.20
.
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/openresty/drizzle-nginx-module