# Updating an index setting

**URL:** <https://discuss.elastic.co/t/updating-an-index-setting/274126>\
**Category:** Elasticsearch\
**Created:** [May 26, 2021, 10:45pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126 "2021-05-26T22:45:45Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Cesidio\_DiBenedetto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cesidio_dibenedetto/32/78869_2.png) [@Cesidio\_DiBenedetto](https://discuss.elastic.co/u/Cesidio_DiBenedetto)\
**Post date:** [May 26, 2021, 10:45pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/1 "2021-05-26T22:45:45Z")

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Currently I have the following on one of my indexes.

```auto
    ...
    "analysis": {
         "filter": {
              "custom_edge_ngram": {
                  "type": "edge_ngram",
                  "min_gram": "1",
                  "max_gram": "10"
             }
         }
    ...

```

If i need to increase the max\_gram, to say 15, would that require creating a new index? If not, will the changes be reflected immediately while searching?

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<div class="post-metadata">

**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:** [May 26, 2021, 10:47pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/2 "2021-05-26T22:47:59Z")

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Yes, you would need to reindex existing data to have that applied to it.

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<div class="post-metadata">

**Author:** ![Cesidio\_DiBenedetto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cesidio_dibenedetto/32/78869_2.png) [@Cesidio\_DiBenedetto](https://discuss.elastic.co/u/Cesidio_DiBenedetto)\
**Post date:** [May 27, 2021, 1:41pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/3 "2021-05-27T13:41:43Z")

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Hey Mark,

So if I close the index temporarily, update the setting, re-open the index and "re-prime" my index, that should basically do it?

Also, how long does closing/opening an index take? We currently have about 1.5 million documents, if that matters.

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<div class="post-metadata">

**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:** [May 27, 2021, 10:49pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/4 "2021-05-27T22:49:52Z")

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What is repriming an index?

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<div class="post-metadata">

**Author:** ![Cesidio\_DiBenedetto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cesidio_dibenedetto/32/78869_2.png) [@Cesidio\_DiBenedetto](https://discuss.elastic.co/u/Cesidio_DiBenedetto)\
**Post date:** [May 28, 2021, 1:45pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/5 "2021-05-28T13:45:36Z")

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Re-priming just means upserting docs again.

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<div class="post-metadata">

**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:** [May 30, 2021, 10:12pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/6 "2021-05-30T22:12:17Z")

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Reindexing then, yes that will work.

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<div class="post-metadata">

**Author:** ![Cesidio\_DiBenedetto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cesidio_dibenedetto/32/78869_2.png) [@Cesidio\_DiBenedetto](https://discuss.elastic.co/u/Cesidio_DiBenedetto)\
**Post date:** [May 31, 2021, 12:50pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/7 "2021-05-31T12:50:04Z")

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Perfect. Thanks.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [June 28, 2021, 12:50pm UTC](https://discuss.elastic.co/t/updating-an-index-setting/274126/8 "2021-06-28T12:50:23Z")

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