I have a 1.2TB backup of Elasticsearch data that I have restored to a standalone machine running 7.14.0. The restore worked fine and I began grooming the data - about half of the indices in the snapshot are not needed for what I am doing next.
I deleted them using the simplest little command:
curl $ELKAUTH -XDELETE "$ELKHOST/$1?pretty"
Several hours later I happened to look and that file system still has 1.24TB of space in use. I am expecting the cull of indices to reduce utilization to about 800GB.
Is there something I need to do in order to reduce the amount of disk space claimed by the system?