# Just Pushed: Cluster Shard Allocation Awareness

**URL:** <https://discuss.elastic.co/t/just-pushed-cluster-shard-allocation-awareness/5428>\
**Category:** Elasticsearch\
**Created:** [September 21, 2011, 8:50pm UTC](https://discuss.elastic.co/t/just-pushed-cluster-shard-allocation-awareness/5428 "2011-09-21T20:50:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [September 21, 2011, 8:50pm UTC](https://discuss.elastic.co/t/just-pushed-cluster-shard-allocation-awareness/5428/1 "2011-09-21T20:50:31Z")

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Heya,

Just pushed support for "awareness" based allocation of shard and  
replicas (i.e. rack aware allocation, or "zone" aware allocation). Explained  
here in the issue:  
[https://github.com/elasticsearch/elasticsearch/issues/1352](https://github.com/elasticsearch/elasticsearch/issues/1352).

-shay.banon

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**Author:** ![phobos182](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/phobos182/32/3011_2.png) [@phobos182](https://discuss.elastic.co/u/phobos182)\
**Post date:** [September 22, 2011, 12:46pm UTC](https://discuss.elastic.co/t/just-pushed-cluster-shard-allocation-awareness/5428/2 "2011-09-22T12:46:39Z")

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Thanks for this. I will definitely test as we have a few racks of ES 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:** [July 6, 2017, 3:53am UTC](https://discuss.elastic.co/t/just-pushed-cluster-shard-allocation-awareness/5428/3 "2017-07-06T03:53:48Z")

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