Hi,
I have tried to index same data on ES 1.7 & ES 2.2. I found that indexing speed is too much slow in 2.2.
Is there any solution to match almost same indexing speed for 2.2 with 1.7 ?
If you are indexing one record at a time instead of using bulk, you are most likely affected by the change in the way data is persisted on disk. See this issue for more information and a possible work-around.