[ANN] ngx_drizzle v0.1.1: fixed segfaults on 32-bit systems

agentzh agentzh at gmail.com
Sat Sep 17 05:14:14 UTC 2011

Hi, folks!

I'm happy to announce that ngx_drizzle v0.1.1 has been released. You
can download the latest release tarball from


This release fixed a long-standing segmentation fault on 32-bit
systems, as well as some other issues. Here goes the complete change

* fixed segmentation faults on 32-bit systems. thanks @魏世江 and
@stefanli for reporting this issue.
* documented the $drizzle_thread_id variable.
* added lots of debug outputs (enabled by the --with-debug option
while building Nginx or OpenResty), inspired by github issue #10.
* fixed issues regarding defining global variables in C header files:
we should have defined rds_rough_col_type_t as a type rather than a
global variable. thanks @姜大炮.
* documented the python -> python3 pitfall while building libdrizzle
1.0 on at least ArchLinux.
* fixed the automatic libdrizzle searching algorithm in the config
file: now we should look under libdrizzle-1.0/ instead. thanks 支家乐
(Calio) for reporting this issue.

ngx_drizzle is an nginx upstream module integrating libdrizzle into
Nginx in a non-blocking and streamming way.

Essentially it provides a very efficient and flexible way for nginx
internals to access MySQL, Drizzle, as well as other RDBMS's that
support the Drizzle or MySQL wired protocol. Also it can serve as a
direct REST interface to those RDBMS backends.

This module does not generate human-readable outputs, rather, in a
binary format called Resty-DBD-Stream (RDS) designed by ourselves. You
usually need other components, like ngx_rds_json [1], ngx_rds_csv [2],
or lua-rds-parser [3], to work with this module. See the RDS output
format spec for more details:

You can find the complete documentation for ngx_drizzle on Nginx Wiki:


and the latest source is on GitHub:


This module is also bundled (though not enabled by default) by the
ngx_openresty bundle:


You can check out this wiki page to enable this component while
building ngx_openresty:


Have fun!

[1] https://github.com/agentzh/rds-json-nginx-module
[2] https://github.com/agentzh/rds-csv-nginx-module
[3] https://github.com/agentzh/lua-rds-parser

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