# What is the impact of Stop Routing

**URL:** <https://discuss.elastic.co/t/what-is-the-impact-of-stop-routing/173237>\
**Category:** Elastic Cloud Enterprise (ECE)\
**Created:** [March 21, 2019, 1:10am UTC](https://discuss.elastic.co/t/what-is-the-impact-of-stop-routing/173237 "2019-03-21T01:10:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Randy-312](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/randy-312/32/19451_2.png) [@Randy-312](https://discuss.elastic.co/u/Randy-312)\
**Post date:** [March 21, 2019, 1:10am UTC](https://discuss.elastic.co/t/what-is-the-impact-of-stop-routing/173237/1 "2019-03-21T01:10:21Z")

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What is the impact of the [Stop Routing](https://www.elastic.co/guide/en/cloud-enterprise/current/ece-maintenance-mode-deployments.html) button in ECE on  
a) Shards being actively written to? Specifically, will a new shard be created on another node to takeover new traffic?  
b) Ability to query the old data on that shard.

Or will this simply kick the cluster into a yellow state and Elastic will start to flip Replicas to primaries and make new replicas? Which would be similar to the [Shard Allocation Filtering](https://www.elastic.co/guide/en/elasticsearch/reference/current/allocation-filtering.html) feature of ElasticSearch

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**Author:** ![Alex\_Piggott](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alex_piggott/32/11053_2.png) [@Alex\_Piggott](https://discuss.elastic.co/u/Alex_Piggott)\
**Post date:** [March 21, 2019, 1:06pm UTC](https://discuss.elastic.co/t/what-is-the-impact-of-stop-routing/173237/2 "2019-03-21T13:06:54Z")

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What "stop routing" does it not allow the proxy to route _external_ traffic to that node. It doesn't change any internal routing/shard allocation/etc

It's normally used in an "all or nothing" way, so it doesn't actually make much sense for it to be settable on a per-node basis, that's just a quirk of the implementation

Alex

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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:** [April 4, 2019, 1:06pm UTC](https://discuss.elastic.co/t/what-is-the-impact-of-stop-routing/173237/3 "2019-04-04T13:06:54Z")

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