Performances ruby/redis vs translate filter


(David R) #1

Dear All,
I have a use case where i need to be able to compare high volume of data (fields like ip addr) to large IP databases.
I have think about the approach of using ruby filter with redis socket connection (with init => to start only once), then request redis DB using mget...
Pros: - Redis supposed to be high performances
- No need to restart / send kill -HUP signal to reload a dictionnary file (maybe not necessary ?)
Cons: Didn t see any config of that kind here... but being the first doesn't mean doing the wrong way :slight_smile:

The other approach would be to use standard translate {} filter with a dictionnary + exact => true

I am now wondering if some of you have an idea of impact/performances on large volume for these 2 solutions ?
Also for the dictionary option is there any "clean" way to reload the yaml dict frequently ?

Kind regards,


(Christian Dahlqvist) #2

This blog post may be useful to you. It describes a prototype memcached plugin that sounds close to what you are looking for, although it is just available as an early prototype. Maybe this could be used or act as a blueprint for how to create a plugin that interfaces with Redis?

Last time I looked the translate plugin could take some time reloading, so changing the dictionary very frequently might not be a good idea (I am not sure, so need to be tested). You could however also look into the jdbc_streaming plugin as may work for your use case.


(David R) #3

Hi Christian,
Thank you for your answer it is much appreciated !
I was not aware of this article which seems to be very interesting nad learnt me new approaches..
It also seems that "translate" would not be suitable for large volumes / dynamic updates...
The good thing is that I found someone which has does the same as my idea !!! (last year) with what looks like amazing results..

I ll try to implement it soon :slight_smile:


(system) #4

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