# Time based Indexes with the powers of ILM **URL:** \ **Category:** Elasticsearch\ **Tags:** ilm-index-lifecycle-management\ **Created:** [March 23, 2021, 5:21am UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038 "2021-03-23T05:21:20Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Alamgir\_Qazi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alamgir_qazi/32/83868_2.png) [@Alamgir\_Qazi](https://discuss.elastic.co/u/Alamgir_Qazi)\ **Post date:** [March 23, 2021, 5:21am UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038/1 "2021-03-23T05:21:21Z")
I want to get benefits of ILM (hot, warm, cold) features + the fixed size of indexes without changing the date/time index. Is this possible ? E.g. I have an index events-2021-03-23 and I want ILM to create a new index like events-2021-03-23-00001, events-2021-03-23-00002 when the shards are all equal at 50GB. Why I wanna do this? We're ingesting 1TB+ data per day. Time based index means we query only for the limited time. With long-term retentions, this is a lot of data and I think its best if it stays in time-series format. ---
**Author:** ![Alamgir\_Qazi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alamgir_qazi/32/83868_2.png) [@Alamgir\_Qazi](https://discuss.elastic.co/u/Alamgir_Qazi)\ **Post date:** [March 23, 2021, 6:54am UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038/2 "2021-03-23T06:54:40Z")
This isn't spam 🙄 ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [March 23, 2021, 9:04am UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038/4 "2021-03-23T09:04:49Z")
The spam catching isn't super smart, we just have to approve stuff that's a false negative. What you are saying is how ILM works. The only time it will create an index with a new timestamp is if the policy changes. ---
**Author:** ![Alamgir\_Qazi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alamgir_qazi/32/83868_2.png) [@Alamgir\_Qazi](https://discuss.elastic.co/u/Alamgir_Qazi)\ **Post date:** [March 23, 2021, 4:36pm UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038/5 "2021-03-23T16:36:41Z")
Most ILM I've seen for now don't use time-based indexes. they are more like firewall-events-00001,firewall-events-00002 from the examples. What I'm looking for is firewall-events-2022-03-23-00001 and so on. ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [March 23, 2021, 4:58pm UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038/6 "2021-03-23T16:58:16Z")
I think you can have a date in the name but the sequence number will just increase and not reset per day. ---
**Author:** ![Alamgir\_Qazi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alamgir_qazi/32/83868_2.png) [@Alamgir\_Qazi](https://discuss.elastic.co/u/Alamgir_Qazi)\ **Post date:** [March 24, 2021, 5:54am UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038/7 "2021-03-24T05:54:29Z")
In that case, I just have 1 question If I use ILM and store indexes as firewall-00001,firewall-00002 , will it give result in the same time If I use date range query on firewall-\* compared to specifying the indexes firewall-2021-03-23,firewall-2021-03-24 ? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 21, 2021, 5:54am UTC](https://discuss.elastic.co/t/time-based-indexes-with-the-powers-of-ilm/268038/8 "2021-04-21T05:54:49Z")
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