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[skip ci] Add comment for types.go - Datacoord.SaveBinlogPaths (#10627)

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Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
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congqixia 2021-10-26 14:19:02 +08:00 committed by GitHub
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internal/types/types.go
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@ -192,6 +192,19 @@ type DataCoord interface {
// response struct `GetRecoveryInfoResponse` contains the list of segments info and corresponding vchannel info
// error is returned only when some communication issue occurs
GetRecoveryInfo(ctx context.Context, req *datapb.GetRecoveryInfoRequest) (*datapb.GetRecoveryInfoResponse, error)
// SaveBinlogPaths updates segments binlogs(including insert binlogs, stats logs and delta logs)
// and related message stream positions
//
// ctx is the context to control request deadline and cancellation
// req contains the collection/partition id to query
//
// response status contains the status/error code and failing reason if any
// error is returned only when some communication issue occurs
//
// there is a constraint that the `SaveBinlogPaths` requests of same segment shall be passed in sequence
// the root reason is each `SaveBinlogPaths` will overwrite the checkpoint position
// if the constraint is broken, the checkpoint position will not be monotonically increasing and the integrity will be compromised
SaveBinlogPaths(ctx context.Context, req *datapb.SaveBinlogPathsRequest) (*commonpb.Status, error)
GetFlushedSegments(ctx context.Context, req *datapb.GetFlushedSegmentsRequest) (*datapb.GetFlushedSegmentsResponse, error)