# What happends if I change master: true, data: true node to master-only node?

**URL:** https://discuss.elastic.co/t/what-happends-if-i-change-master-true-data-true-node-to-master-only-node/42337
**Category:** Elasticsearch
**Created:** [February 21, 2016, 4:14pm UTC](https://discuss.elastic.co/t/what-happends-if-i-change-master-true-data-true-node-to-master-only-node/42337 "2016-02-21T16:14:26Z")
**Posts on this page:** 1
**Showing post:** 7

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### Author: ![dynamicscope](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@dynamicscope](https://discuss.elastic.co/u/dynamicscope)
#### Post date: [February 22, 2016, 12:17am UTC](https://discuss.elastic.co/t/what-happends-if-i-change-master-true-data-true-node-to-master-only-node/42337/7 "2016-02-22T00:17:57Z")

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Thank you very much for your answer.

I have been creating indices as daily log style, e.g. `my-index-001-20160221` for handy management. And 001 is ranging from 001 ~ 100.

I guess this is a bad indexing strategy for memory usage.

Q. What if I disable norm for the fields? I am only filtering and aggregating for many of the fields. Would this help solving memory issue?

Q. What could be the side effect if I change my index pattern to be `my-index-001-YYYYMM`? This will reduce the number of shards by `1/30`-ish but I would need to update/change daily docs when a day ends.

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