how to use bloomfilter set expire time

[luoqishuai]

I want to use bloomfilter in scrapy_redis. scrapy_redis has a large number of url need to filter.
If i use the bloomfilter for a few weeks. Linux memory will boom.So i want use bloomfilter to filter 7 days(or other time) url.What shou i do? Can you give me some adices?

[luoqishuai]

If you don't understand or have no free time .Please tell me. Thanks.

[kleinron]

I think you need some kind of aging Bloom filter, as described here.
I'm not sure if this repo contains such implementation.

[luoqishuai]

Thank you for your help.