Commits on Dec 29, 2014

1. Add index.data_path setting …

   This allows specifying the path an index will be at.
   
   `index.data_path` is specified in the settings when creating an index,
   and can not be dynamically changed.
   
   An example request would look like:
   
   POST /myindex
   {
     "settings": {
       "number_of_shards": 2,
       "data_path": "/tmp/myindex"
     }
   }
   
   And would put data in /tmp/myindex/0/index/0 and /tmp/myindex/0/index/1
   
   Since this can be used to write data to arbitrary locations on disk, it
   requires enabling the `node.enable_custom_paths` setting in
   elasticsearch.yml on all nodes.
   
   Relates to elastic#8976

   

   dakrone committed Dec 29, 2014
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