milvus-io--milvus
wehub-resource-sync
498b235461
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58 行
2.3 KiB
Go
58 行
2.3 KiB
Go
package broadcaster
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import (
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"context"
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"github.com/cockroachdb/errors"
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"github.com/milvus-io/milvus/pkg/v3/streaming/util/message"
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"github.com/milvus-io/milvus/pkg/v3/streaming/util/types"
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)
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var (
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ErrNotPrimary = errors.New("cluster is not primary, cannot do any DDL/DCL")
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ErrNotSecondary = errors.New("cluster is not secondary, cannot perform force promote")
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)
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type Broadcaster interface {
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// WithResourceKeys sets the resource keys of the broadcast operation.
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// It will acquire locks of the resource keys and return the broadcast api.
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// Once the broadcast api is returned, the Close() method of the broadcast api should be called to release the resource safely.
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// Return ErrNotPrimary if the cluster is not primary, so no DDL message can be broadcasted.
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WithResourceKeys(ctx context.Context, resourceKeys ...message.ResourceKey) (BroadcastAPI, error)
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// WithSecondaryClusterResourceKey acquires an exclusive cluster-level resource key
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// and verifies the cluster is secondary. Returns error if the cluster is primary.
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// This is used for force promote operations that should only be executed on secondary clusters.
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WithSecondaryClusterResourceKey(ctx context.Context) (BroadcastAPI, error)
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// LegacyAck is the legacy ack interface for the 2.6.0 import message.
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LegacyAck(ctx context.Context, broadcastID uint64, vchannel string) error
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// Ack acknowledges the message at the specified vchannel.
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Ack(ctx context.Context, msg message.ImmutableMessage) error
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// GetPendingCreateCollectionResources returns collection ID → file resource IDs
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// for all pending CreateCollection broadcast tasks that haven't completed
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// their ack callback yet. Used during recovery to rebuild file resource refCnt.
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GetPendingCreateCollectionResources() map[int64][]int64
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// Close closes the broadcaster.
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Close()
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}
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type BroadcastAPI interface {
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// Broadcast broadcasts the message to all channels.
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Broadcast(ctx context.Context, msg message.BroadcastMutableMessage) (*types.BroadcastAppendResult, error)
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// Close releases the resource keys that broadcast api holds.
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Close()
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}
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// AppendOperator is used to append messages, there's only two implement of this interface:
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// 1. streaming.WAL()
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// 2. old msgstream interface [deprecated]
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type AppendOperator interface {
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AppendMessages(ctx context.Context, msgs ...message.MutableMessage) types.AppendResponses
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}
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