Instead of going with one big monolithic index, we now create one index per timeframe. The timeframe could be one day, one week, one month, or any arbitrary time duration. For example, in our example in the Index Template section, we chose index-per-day. The names of the index would reflect that—we had indexes such as readings-2019-05-01, readings-2019-05-02, and so on. If we had chosen index-per-month, the index names would look like readings-2019-04, readings-2019-05, readings-2019-06, and so on.

Let's look at how this scheme solves the issues we saw earlier one by one.