I created a primary index on ~1.35 billion docs in a 3 node cluster.
Here is what the server reports as the size:
index name requests/sec resident ratio items data size bucket status #primary 0 0% 799,213,932 102,262.6 MB Library building 59%
However, when looking at the disk, I have over two TB of disk space in use, see:
Any idea what is going on here?