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Add comment for AssignSegmentID for Datacoord in types (#9095) 

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
pull/9096/head
congqixia 2021-10-02 23:13:55 +08:00 committed by GitHub
parent f18e0628ae
commit 9e2dfb8100
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13
internal/types/types.go
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@ -81,6 +81,19 @@ type DataCoord interface {
// Flushed segments can be check via `GetFlushedSegments` API
Flush(ctx context.Context, req *datapb.FlushRequest) (*datapb.FlushResponse, error)
// AssignSegmentID applies allocations for specified Coolection/Partition and related Channel Name(Virtial Channel)
//
// ctx is the context to control request deadline and cancellation
// req contains the requester's info(id and role) and the list of Assigment Request,
// which coontains the specified collection, partitaion id, the related VChannel Name and row count it needs
//
// response struct `AssignSegmentIDResponse` contains the the assignment result for each request
// error is returned only when some communication issue occurs
// if some error occurs in the process of `AssignSegmentID`, it will be recorded and returned in `Status` field of response
//
// `AssignSegmentID` will applies current configured allocation policies for each request
// if the VChannel is newly used, `WatchDmlChannels` will be invoked to notify a `DataNode`(selected by policy) to watch it
// if there is anything make the allocation impossible, the response will not contain the corresponding result
AssignSegmentID(ctx context.Context, req *datapb.AssignSegmentIDRequest) (*datapb.AssignSegmentIDResponse, error)
GetSegmentStates(ctx context.Context, req *datapb.GetSegmentStatesRequest) (*datapb.GetSegmentStatesResponse, error)
GetInsertBinlogPaths(ctx context.Context, req *datapb.GetInsertBinlogPathsRequest) (*datapb.GetInsertBinlogPathsResponse, error)