# Reboot elastic after power off, the status is red, What should I do?

**URL:** <https://discuss.elastic.co/t/reboot-elastic-after-power-off-the-status-is-red-what-should-i-do/137221>\
**Category:** Elasticsearch\
**Created:** [June 25, 2018, 9:21am UTC](https://discuss.elastic.co/t/reboot-elastic-after-power-off-the-status-is-red-what-should-i-do/137221 "2018-06-25T09:21:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![yuluopiaoyang](https://avatars.discourse-cdn.com/v4/letter/y/bbce88/32.png) [@yuluopiaoyang](https://discuss.elastic.co/u/yuluopiaoyang)\
**Post date:** [June 25, 2018, 9:21am UTC](https://discuss.elastic.co/t/reboot-elastic-after-power-off-the-status-is-red-what-should-i-do/137221/1 "2018-06-25T09:21:20Z")

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I have installed elasticsearch on two nodes. Our lab power off last weekend. Then I reboot elasticsearch today, but the cluster status is red, what should I do? Thank you!

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**Author:** ![tdasch](https://avatars.discourse-cdn.com/v4/letter/t/58f4c7/32.png) [@tdasch](https://discuss.elastic.co/u/tdasch)\
**Post date:** [June 25, 2018, 12:26pm UTC](https://discuss.elastic.co/t/reboot-elastic-after-power-off-the-status-is-red-what-should-i-do/137221/2 "2018-06-25T12:26:45Z")

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Red means you are missing primary shards. What version of Elasticsearch are you using? If higher then 5.1 (I think it started in 5.1) you can use the Cluster Allocation Explain API to figure out what is going on with the shards in your cluster. Check the [documentation here](https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-allocation-explain.html). Feel free to ask followup questions if you need guidance after trying out the API.

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**Author:** ![yuluopiaoyang](https://avatars.discourse-cdn.com/v4/letter/y/bbce88/32.png) [@yuluopiaoyang](https://discuss.elastic.co/u/yuluopiaoyang)\
**Post date:** [June 28, 2018, 1:35am UTC](https://discuss.elastic.co/t/reboot-elastic-after-power-off-the-status-is-red-what-should-i-do/137221/3 "2018-06-28T01:35:33Z")

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Thank you for your reply. I will try to use this method to find the reason the next time.

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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:** [July 26, 2018, 1:35am UTC](https://discuss.elastic.co/t/reboot-elastic-after-power-off-the-status-is-red-what-should-i-do/137221/4 "2018-07-26T01:35:46Z")

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