mongodb - mongorestore metadata.json file -


i have .bson file mongodb dump. dump produces .metadata.json file seems contain index definitions.

{     "options": {},     "indexes": [         {             "v": 1,             "key": {                 "_id": 1             },             "name": "_id_",             "ns": "test.onemilliondocuments"         }     ] }

i assume restoring .bson file doesn't include indexes.

  • how use .metadata.json file? need restore separately?

my restore finished following lines:

2016-02-06t19:18:56.397+0000    [#######################.]  test2.onemillionrecordsrestore  9.7 gb/9.7 gb  (99.5%) 2016-02-06t19:18:58.475+0000    restoring indexes collection test2.onemillionrecordsrestore metadata 2016-02-06t19:18:58.485+0000    finished restoring test2.onemillionrecordsrestore (1000000 documents) 2016-02-06t19:18:58.488+0000    done

there's line saying it's restoring indexes, referencing .metadata.json file.

you don't have specific metadata.json file: run mongorestore , read .bson files provided in same directory. see line in output can infer whether has been read or not:

2016-02-06t20:22:08.652+0100    reading metadata mydb.message dump/mydb/message.metadata.json

however, think there cases ignored (e.g. conflicting index definitions). import won't fail though, see line in log telling metadata (or parts of it) ignored.


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