mirror of
https://gitee.com/milvus-io/milvus.git
synced 2025-12-07 09:38:39 +08:00
9e2d1963d4
issue: #43897 - add cchannel as a special vchannel to hold some ddl and dcl. Signed-off-by: chyezh <chyezh@outlook.com>
83 lines
2.7 KiB
Go
83 lines
2.7 KiB
Go
package streaming
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/milvus-io/milvus/internal/distributed/streaming/internal/producer"
|
|
"github.com/milvus-io/milvus/pkg/v2/streaming/util/message"
|
|
"github.com/milvus-io/milvus/pkg/v2/streaming/util/types"
|
|
"github.com/milvus-io/milvus/pkg/v2/util/funcutil"
|
|
)
|
|
|
|
// routePChannel routes the pchannel of the vchannel.
|
|
// If the vchannel is control channel, it will return the pchannel of the cchannel.
|
|
// Otherwise, it will return the pchannel of the vchannel.
|
|
// TODO: support cross-cluster replication, so the remote vchannel should be mapping to the pchannel of the local cluster.
|
|
func (w *walAccesserImpl) routePChannel(ctx context.Context, vchannel string) (string, error) {
|
|
if vchannel == message.ControlChannel {
|
|
assignments, err := w.streamingCoordClient.Assignment().GetLatestAssignments(ctx)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return assignments.PChannelOfCChannel(), nil
|
|
}
|
|
pchannel := funcutil.ToPhysicalChannel(vchannel)
|
|
return pchannel, nil
|
|
}
|
|
|
|
// appendToWAL appends the message to the wal.
|
|
func (w *walAccesserImpl) appendToWAL(ctx context.Context, msg message.MutableMessage) (*types.AppendResult, error) {
|
|
pchannel, err := w.routePChannel(ctx, msg.VChannel())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// get producer of pchannel.
|
|
p := w.getProducer(pchannel)
|
|
return p.Produce(ctx, msg)
|
|
}
|
|
|
|
// createOrGetProducer creates or get a producer.
|
|
// vchannel in same pchannel can share the same producer.
|
|
func (w *walAccesserImpl) getProducer(pchannel string) *producer.ResumableProducer {
|
|
w.producerMutex.Lock()
|
|
defer w.producerMutex.Unlock()
|
|
|
|
// TODO: A idle producer should be removed maybe?
|
|
if p, ok := w.producers[pchannel]; ok {
|
|
return p
|
|
}
|
|
p := producer.NewResumableProducer(w.handlerClient.CreateProducer, &producer.ProducerOptions{
|
|
PChannel: pchannel,
|
|
})
|
|
w.producers[pchannel] = p
|
|
return p
|
|
}
|
|
|
|
// assertValidMessage asserts the message is not system message.
|
|
func assertValidMessage(msgs ...message.MutableMessage) {
|
|
for _, msg := range msgs {
|
|
if msg.MessageType().IsSystem() {
|
|
panic("system message is not allowed to append from client")
|
|
}
|
|
if msg.VChannel() == "" {
|
|
panic("we don't support sent all vchannel message at client now")
|
|
}
|
|
}
|
|
}
|
|
|
|
// assertValidBroadcastMessage asserts the message is not system message.
|
|
func assertValidBroadcastMessage(msg message.BroadcastMutableMessage) {
|
|
if msg.MessageType().IsSystem() {
|
|
panic("system message is not allowed to broadcast append from client")
|
|
}
|
|
}
|
|
|
|
// We only support delete and insert message for txn now.
|
|
func assertIsDmlMessage(msgs ...message.MutableMessage) {
|
|
for _, msg := range msgs {
|
|
if msg.MessageType() != message.MessageTypeInsert && msg.MessageType() != message.MessageTypeDelete {
|
|
panic("only insert and delete message is allowed in txn")
|
|
}
|
|
}
|
|
}
|