Is it possible to create lua_shared_dict using lua script?

donghanglin · 2018-01-01T08:25:00+00:00

how to send message/data to kafka cluster protected by kerberos with lua + nginx / openresty? Currently the module I found is lua-resty-kafka (https://github...

Is it possible to create lua_shared_dict using lua script?

donghanglin

Can I achieve this without using lua_shared_dict directive?

Thanks.

zchao1995

Hello!

> Can I achieve this without using lua_shared_dict directive?

No, you can't. A lua_shared_dict object contains a shared memory(underlying), the allocation of shared memory is early than any phase you can get involved like init_by_lua, init_worker_by_lua and so on.

thibaultcha

Hi,

I have recently been working on unlocking the creation of lua_shared_dicts from Lua.

Here is a proposed patch:

https://github.com/openresty/lua-nginx-module/pull/1259

It is implemented via a new 'configure_by_lua' phase which runs in the init phase of the NGINX master process (like init_by_lua), so it solves a particular category of needs for "dynamic" OpenResty applications that can (re)-configure themselves when starting and/or reloading. Your feedback would be welcome.

Cheers,
Thibault

On 12/31/17 4:25 PM, Donghang Lin wrote:

Can I achieve this without using lua_shared_dict directive?

Thanks.
.