# Elasticsearch node has no shards

**URL:** <https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871>\
**Category:** Elasticsearch\
**Created:** [August 5, 2019, 7:24pm UTC](https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871 "2019-08-05T19:24:28Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![userR](https://avatars.discourse-cdn.com/v4/letter/u/22d042/32.png) [@userR](https://discuss.elastic.co/u/userR)\
**Post date:** [August 5, 2019, 7:24pm UTC](https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871/1 "2019-08-05T19:24:28Z")

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![59%20PM](https://us1.discourse-cdn.com/elastic/original/3X/7/0/70de40d06d60db834f7122236857582294d570de.png)

I recently restarted the master node and found that no shards have been allocated to it. Master node version is 7.20 and data nodes are 7.21. Is that an issue? How do I go about updating the Master node version (installed as rpm)?

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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:** [August 5, 2019, 7:27pm UTC](https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871/2 "2019-08-05T19:27:20Z")

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Yes, that is an issue. All nodes need to use exactly the same version as shards on a newer version can not be allocated to a node with a lower version.

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**Author:** ![userR](https://avatars.discourse-cdn.com/v4/letter/u/22d042/32.png) [@userR](https://discuss.elastic.co/u/userR)\
**Post date:** [August 5, 2019, 7:27pm UTC](https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871/3 "2019-08-05T19:27:55Z")

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How do I go about updating to 7.21?

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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:** [August 5, 2019, 7:51pm UTC](https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871/4 "2019-08-05T19:51:29Z")

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Have a look at [the docs](https://www.elastic.co/guide/en/elasticsearch/reference/7.3/rolling-upgrades.html) as they describe the process.

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<div class="post-metadata">

**Author:** ![userR](https://avatars.discourse-cdn.com/v4/letter/u/22d042/32.png) [@userR](https://discuss.elastic.co/u/userR)\
**Post date:** [August 5, 2019, 7:58pm UTC](https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871/5 "2019-08-05T19:58:16Z")

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edit:  
nvm

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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:** [September 2, 2019, 8:04pm UTC](https://discuss.elastic.co/t/elasticsearch-node-has-no-shards/193871/6 "2019-09-02T20:04:48Z")

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