# Create a watch to alert

**URL:** <https://discuss.elastic.co/t/create-a-watch-to-alert/206007>\
**Category:** Elasticsearch\
**Created:** [October 31, 2019, 9:30am UTC](https://discuss.elastic.co/t/create-a-watch-to-alert/206007 "2019-10-31T09:30:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![NinjaMonkey](https://avatars.discourse-cdn.com/v4/letter/n/67e7ee/32.png) [@NinjaMonkey](https://discuss.elastic.co/u/NinjaMonkey)\
**Post date:** [October 31, 2019, 9:31am UTC](https://discuss.elastic.co/t/create-a-watch-to-alert/206007/1 "2019-10-31T09:31:00Z")

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I am trying to find out nodes left or nodes joined in ElasticSearch 6.4

Looks like node\_left and node\_joined events has been removed from marvel indexes in latest versions . Is there any other way to create a watch to alert when a node joins or leaves the cluster? Besides doing a query for total nodes?

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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:** [November 28, 2019, 9:31am UTC](https://discuss.elastic.co/t/create-a-watch-to-alert/206007/2 "2019-11-28T09:31:05Z")

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