# "allocate\_explanation" : "allocation temporarily throttled"

**URL:** <https://discuss.elastic.co/t/allocate-explanation-allocation-temporarily-throttled/276709>\
**Category:** Elasticsearch\
**Created:** [June 23, 2021, 1:21am UTC](https://discuss.elastic.co/t/allocate-explanation-allocation-temporarily-throttled/276709 "2021-06-23T01:21:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![alexus](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alexus/32/12696_2.png) [@alexus](https://discuss.elastic.co/u/alexus)\
**Post date:** [June 23, 2021, 1:21am UTC](https://discuss.elastic.co/t/allocate-explanation-allocation-temporarily-throttled/276709/1 "2021-06-23T01:21:10Z")

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Hello World!

Per [Cluster Allocation Explain API | Elasticsearch Guide [6.8] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/6.8/cluster-allocation-explain.html#cluster-allocation-explain) - I ran and got following:

> GET /\_cluster/allocation/explain

* * *

```auto
      "node_decision" : "throttled",
      "deciders" : [
        {
          "decider" : "throttling",
          "decision" : "THROTTLE",
          "explanation" : "reached the limit of incoming shard recoveries [6], cluster setting [cluster.routing.allocation.node_concurrent_incoming_recoveries=2] (can also be set via [cluster.routing.allocation.node_concurrent_recoveries])"
        }
      ]

```

After changing `cluster.routing.allocation.node_concurrent_recoveries` setting (REF: [Cluster Level Shard Allocation | Elasticsearch Guide [6.8] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/6.8/shards-allocation.html#_shard_allocation_settings)), I believe that helped to recover cluster, however I still trying to understand why it got to that point at the first place...

Please advise 😉  
Thanks you in advance!

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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:** [July 21, 2021, 1:21am UTC](https://discuss.elastic.co/t/allocate-explanation-allocation-temporarily-throttled/276709/2 "2021-07-21T01:21:59Z")

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