[[allow-all-index-allocation]]
== Allow Elasticsearch to allocate the index

The allocation of data can be controlled using the <<index-routing-allocation-enable-setting, enable 
allocation configuration>>.
In certain circumstances users might want to temporarily disable or restrict the
allocation of data. 

Forgetting to re-allow all data allocation can lead to unassigned shards.

In order to (re)allow all data to be allocated follow these steps:

include::{es-repo-dir}/tab-widgets/troubleshooting/data/enable-index-allocation-widget.asciidoc[]