# What causes "blocks": { "write": "true" }

**URL:** <https://discuss.elastic.co/t/what-causes-blocks-write-true/157875>\
**Category:** Elasticsearch\
**Created:** [November 22, 2018, 12:42pm UTC](https://discuss.elastic.co/t/what-causes-blocks-write-true/157875 "2018-11-22T12:42:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lonzodc](https://avatars.discourse-cdn.com/v4/letter/l/f08c70/32.png) [@lonzodc](https://discuss.elastic.co/u/lonzodc)\
**Post date:** [November 22, 2018, 12:42pm UTC](https://discuss.elastic.co/t/what-causes-blocks-write-true/157875/1 "2018-11-22T12:42:31Z")

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"blocks": { "write": "true" } is currently applied on my ElasticSearch index? Is this related with a protection that is currently implemented in the cluster?

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**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:** [November 22, 2018, 12:44pm UTC](https://discuss.elastic.co/t/what-causes-blocks-write-true/157875/2 "2018-11-22T12:44:12Z")

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Are you by any chance running low on disk space?

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<div class="post-metadata">

**Author:** ![lonzodc](https://avatars.discourse-cdn.com/v4/letter/l/f08c70/32.png) [@lonzodc](https://discuss.elastic.co/u/lonzodc)\
**Post date:** [November 22, 2018, 12:48pm UTC](https://discuss.elastic.co/t/what-causes-blocks-write-true/157875/3 "2018-11-22T12:48:25Z")

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By using cluster stats, we still have disk space.

See below:  
"fs": {  
"total\_in\_bytes": 420608704512,  
"free\_in\_bytes": 418045759488,  
"available\_in\_bytes": 396503814144  
}

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 20, 2018, 12:48pm UTC](https://discuss.elastic.co/t/what-causes-blocks-write-true/157875/4 "2018-12-20T12:48:29Z")

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