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Index recovery prioritization

IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.

Unallocated shards are recovered in order of priority, whenever possible. Indices are sorted into priority order as follows:

This means that, by default, newer indices will be recovered before older indices.

Use the per-index dynamically updatable index.priority setting to customise the index prioritization order. For instance:

PUT index_1

PUT index_2

PUT index_3
{
  "settings": {
    "index.priority": 10
  }
}

PUT index_4
{
  "settings": {
    "index.priority": 5
  }
}

In the above example:

This setting accepts an integer, and can be updated on a live index with the update index settings API:

PUT index_4/_settings
{
  "index.priority": 1
}