We have an use case where we store data in indexes month wise. For eg. if I have created few blog posts in April 2017 it will be stored in index named as 'abc_2017.04'. So even if I write 100 blogs in april it will get stored in 'abc_2017.04' and for different months it will get stored in corresponding month wise indexes.
Another approach which we think of is to create 6 month indexes so if I write blog posts in first 6 months of year it will go in for eg., 'abc_2017.01-06'. But this index will then be having lots of data.
Which approach is better? Creating month wise indexes or creating few indexes and storing whole data in those few indexes?