elasticsearch data_path remove one on elasticsearch

Question

I have two path.data: path.data: ["/datassd/elasticsearch", "/data/elasticsearch"] but one is quite small and always full, I want to not use it anymore and to only use one. is it possible to

• remove it from conf and restart ? If so, what will happen ? Will data be available and no more will be added so in some time I can get rid of it entirelry or may I lose data (I don't want that)
• can I do a dynamic update somewhere to force data to be writton only one one ?

Thanks for your help, or any tips, it's easy to add one datapath but I can't find how to not use one.

Answer 1

stop elasticsearch service

remove the small data.path config.

cp -r /datassd/elasticsearch/nodes/0/indices/*    /data/elasticsearch/nodes/0/indices/

start elasticsearch service

use dangling API and Import API to import indices again:

https://www.elastic.co/guide/en/elasticsearch/reference/master/dangling-indices-list.html https://www.elastic.co/guide/en/elasticsearch/reference/master/dangling-index-import.html