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[#81] Clarify that attribute names must be unique

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All types of attribute keys must be unique and can't be repeated in the same
entity.

- Containers with duplicated attribute keys must not be accepted by InnerRing on
  creation.
- Nodes with duplicated attribute keys can't be accepted to NetMap by InnerRing
- Objects with duplicated attribute keys must be considered invalid and not
  accepted in PUT operations

Signed-off-by: Stanislav Bogatyrev <stanislav@nspcc.ru>
This commit is contained in:
Stanislav Bogatyrev 2020-12-11 09:46:00 +03:00 • committed by Stanislav Bogatyrev
parent 99a537ea65
commit a8c1779690
3 changed files with 10 additions and 3 deletions
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4
object/types.proto
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@ -92,7 +92,9 @@ message Header {
// `Attribute` is a user-defined Key-Value metadata pair attached to the
// object.
//
// Key name must be a valid UTF-8 string. Value can't be empty.
// Key name must be a object-unique valid UTF-8 string. Value can't be empty.
// Objects with duplicated attribute names or attributes with empty values
// will be considered invalid.
//
// There are some "well-known" attributes starting with `__NEOFS__` prefix
// that affect system behaviour: