My cluster has a volume of 16 Billion data with 1300 Shards and 12 TB of data and Data Nodes of,Each (16 GB ,2 TB & 4 Cores).
The no of segments are increased to ==> 19734 . IS there lead to any I/O issues. Because now the indexing is in really trouble and indexing was slower than 20 x by normal.
Any suggestions /clarfications