"I’m looking for a solution to set a global replication factor for vector indexes. The official documentation only mentions specifying this parameter when creating a vector index. I’m using an open-source software where vector indexes are created dynamically without specifying this parameter, and the database already has many vector indexes. Is there a way to add a global parameter and automatically replicate the existing vector indexes to match the desired replication factor?
The request load isn’t heavy. Currently, there’s only a single node, which isn’t robust for production use. I’m looking for a way to ensure high availability for Weaviate, not focused on high throughput.
hi @Zhenghua_Liu !!
Welcome to our community 
Thank you very much! I have just realized that we do indeed have this feature, however it was undocumented 
the environment variable you want is:
REPLICATION_MINIMUM_FACTOR
Once you set this for your cluster, it will always specify that value as the replication factor, unless you explicitly specify while creating a collection.
I will work on adding this to our docs.
Thanks a lot for asking this 