# About lucene NRT feature **URL:** \ **Category:** Elasticsearch\ **Created:** [April 19, 2011, 6:37pm UTC](https://discuss.elastic.co/t/about-lucene-nrt-feature/4257 "2011-04-19T18:37:42Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Mustafa\_Sener](https://avatars.discourse-cdn.com/v4/letter/m/ed8c4c/32.png) [@Mustafa\_Sener](https://discuss.elastic.co/u/Mustafa_Sener)\ **Post date:** [April 19, 2011, 6:37pm UTC](https://discuss.elastic.co/t/about-lucene-nrt-feature/4257/1 "2011-04-19T18:37:42Z")
Hi, I investigated code and modified RobinEngine a little bit to give each search request a new IndexReader. When I do this I am able to get realtime data. I tested indexing performance and saw that there is no significant effect on it but I saw that search performance degraded very much (10-20 times slower). But sometime we need really realtime data without refresh. Can we add a selective search request which returns real time data? We can set a flag on search request and that search request will get a new reader on indexwriter. Is this possible? -- Mustafa Sener [www.ifountain.com](http://www.ifountain.com) ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [April 19, 2011, 11:27pm UTC](https://discuss.elastic.co/t/about-lucene-nrt-feature/4257/2 "2011-04-19T23:27:51Z")
Yep, its possible, open a feature for it. On Tuesday, April 19, 2011 at 9:37 PM, Mustafa Sener wrote: > Hi, > I investigated code and modified RobinEngine a little bit to give each search request a new IndexReader. When I do this I am able to get realtime data. I tested indexing performance and saw that there is no significant effect on it but I saw that search performance degraded very much (10-20 times slower). But sometime we need really realtime data without refresh. Can we add a selective search request which returns real time data? We can set a flag on search request and that search request will get a new reader on indexwriter. Is this possible? > > -- > Mustafa Sener > [www.ifountain.com](http://www.ifountain.com) ---
**Author:** ![Mustafa\_Sener](https://avatars.discourse-cdn.com/v4/letter/m/ed8c4c/32.png) [@Mustafa\_Sener](https://discuss.elastic.co/u/Mustafa_Sener)\ **Post date:** [April 20, 2011, 5:41am UTC](https://discuss.elastic.co/t/about-lucene-nrt-feature/4257/3 "2011-04-20T05:41:45Z")
I created issue > > > Discussed in > http://elasticsearch-users.115913.n3.nabble.com/About-lucene-NRT-f…eature-tp2839693p2839693.html On Wed, Apr 20, 2011 at 2:27 AM, Shay Banon [shay.banon@elasticsearch.com](mailto:shay.banon@elasticsearch.com)wrote: > Yep, its possible, open a feature for it. > > On Tuesday, April 19, 2011 at 9:37 PM, Mustafa Sener wrote: > > Hi, > I investigated code and modified RobinEngine a little bit to give each > search request a new IndexReader. When I do this I am able to get realtime > data. I tested indexing performance and saw that there is no significant > effect on it but I saw that search performance degraded very much (10-20 > times slower). But sometime we need really realtime data without refresh. > Can we add a selective search request which returns real time data? We can > set a flag on search request and that search request will get a new reader > on indexwriter. Is this possible? > > -- > Mustafa Sener > [www.ifountain.com](http://www.ifountain.com) -- Mustafa Sener [www.ifountain.com](http://www.ifountain.com) WebRep Overall rating ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 4:08am UTC](https://discuss.elastic.co/t/about-lucene-nrt-feature/4257/4 "2017-07-06T04:08:02Z")
Closed on July 6, 2017, 4:08am UTC