Mget aborting request if index missing

[clintongormley]

mget returns an error for each doc if the type or id is not found, but throws a top-level error if the index is not found. This seems inconsistent:

curl -XPUT 'localhost:9200/test_1/test/1?pretty=1'  -d '
{
   "foo" : "bar"
}
'

curl -XGET 'localhost:9200/_mget?pretty=1'  -d '
{
   "docs" : [
      {
         "_index" : "test_1",
         "_id" : "2",
         "_type" : "test"
      },
      {
         "_index" : "test_1",
         "_id" : "1",
         "_type" : "none"
      },
      {
         "_index" : "test_1",
         "_id" : "1",
         "_type" : "test"
      }
   ]
}
'

# {
#    "docs" : [
#       {
#          "_index" : "test_1",
#          "_id" : "2",
#          "_type" : "test",
#          "exists" : false
#       },
#       {
#          "_index" : "test_1",
#          "_id" : "1",
#          "_type" : "none",
#          "exists" : false
#       },
#       {
#          "_source" : {
#             "foo" : "bar"
#          },
#          "_index" : "test_1",
#          "_id" : "1",
#          "_type" : "test",
#          "exists" : true,
#          "_version" : 1
#       }
#    ]
# }

curl -XGET 'localhost:9200/_mget?pretty=1'  -d '
{
   "docs" : [
      {
         "_index" : "test_1",
         "_id" : "2",
         "_type" : "test"
      },
      {
         "_index" : "test_2",
         "_id" : "1",
         "_type" : "test"
      },
      {
         "_index" : "test_1",
         "_id" : "1",
         "_type" : "none"
      },
      {
         "_index" : "test_1",
         "_id" : "1",
         "_type" : "test"
      }
   ]
}
'

# {
#    "status" : 404,
#    "error" : "IndexMissingException[[test_2] missing]"
# }