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[#41] object: Support erasure codes

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Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
This commit is contained in:
Evgenii Stratonikov 2024-02-28 13:42:59 +03:00
parent 4c68d92468
commit f56ccf36b1
2 changed files with 41 additions and 0 deletions
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9
object/service.proto
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@ -319,6 +319,9 @@ message GetResponse {
// Meta information of split hierarchy for object assembly. // Meta information of split hierarchy for object assembly.
SplitInfo split_info = 3; SplitInfo split_info = 3;
// Meta information for EC object assembly.
ECInfo ec_info = 4;
} }
} }
// Body of get object response message. // Body of get object response message.
@ -503,6 +506,9 @@ message HeadResponse {
// Meta information of split hierarchy. // Meta information of split hierarchy.
SplitInfo split_info = 3; SplitInfo split_info = 3;
// Meta information for EC object assembly.
ECInfo ec_info = 4;
} }
} }
// Body of head object response message. // Body of head object response message.
@ -678,6 +684,9 @@ message GetRangeResponse {
// Meta information of split hierarchy. // Meta information of split hierarchy.
SplitInfo split_info = 2; SplitInfo split_info = 2;
// Meta information for EC object assembly.
ECInfo ec_info = 3;
} }
} }

32
object/types.proto
View file

@ -193,6 +193,24 @@ message Header {
} }
// Position of the object in the split hierarchy // Position of the object in the split hierarchy
Split split = 11 [ json_name = "split" ]; Split split = 11 [ json_name = "split" ];
// Erasure code can be applied to any object.
// Information about encoded object structure is stored in `EC` header.
// All objects belonging to a single EC group have the same `parent` field.
message EC {
// Identifier of the origin object. Known to all chunks.
neo.fs.v2.refs.ObjectID parent = 1 [ json_name = "parent" ];
// Index of this chunk.
uint32 index = 2 [ json_name = "index" ];
// Total number of chunks in this split.
uint32 total = 3 [ json_name = "total" ];
// Total length of a parent header. Used to trim padding zeroes.
uint32 header_length = 4 [ json_name = "headerLength" ];
// Chunk of a parent header.
bytes header = 5 [ json_name = "header" ];
}
// Erasure code chunk information.
EC ec = 12 [ json_name = "ec" ];
} }
// Object structure. Object is immutable and content-addressed. It means // Object structure. Object is immutable and content-addressed. It means
@ -232,3 +250,17 @@ message SplitInfo {
// object parts. // object parts.
neo.fs.v2.refs.ObjectID link = 3; neo.fs.v2.refs.ObjectID link = 3;
} }
// Meta information for the erasure-encoded object.
message ECInfo {
message Chunk {
// Object ID of the chunk.
neo.fs.v2.refs.ObjectID id = 1;
// Index of the chunk.
uint32 index = 2;
// Total number of chunks in this split.
uint32 total = 3;
}
// Chunk stored on the node.
repeated Chunk chunks = 1;
}