gunli commented on code in PR #1071:
URL: https://github.com/apache/pulsar-client-go/pull/1071#discussion_r1279182206
##########
pulsar/producer_partition.go:
##########
@@ -1121,78 +958,301 @@ func (p *partitionProducer) SendAsync(ctx
context.Context, msg *ProducerMessage,
p.internalSendAsync(ctx, msg, callback, false)
}
-func (p *partitionProducer) internalSendAsync(ctx context.Context, msg
*ProducerMessage,
- callback func(MessageID, *ProducerMessage, error), flushImmediately
bool) {
+func (p *partitionProducer) validateMsg(msg *ProducerMessage) error {
if msg == nil {
- p.log.Error("Message is nil")
- runCallback(callback, nil, msg, newError(InvalidMessage,
"Message is nil"))
- return
+ return newError(InvalidMessage, "Message is nil")
}
if msg.Value != nil && msg.Payload != nil {
- p.log.Error("Can not set Value and Payload both")
- runCallback(callback, nil, msg, newError(InvalidMessage, "Can
not set Value and Payload both"))
- return
+ return newError(InvalidMessage, "Can not set Value and Payload
both")
}
- // Register transaction operation to transaction and the transaction
coordinator.
- var newCallback func(MessageID, *ProducerMessage, error)
- var txn *transaction
- if msg.Transaction != nil {
- transactionImpl := (msg.Transaction).(*transaction)
- txn = transactionImpl
- if transactionImpl.state != TxnOpen {
- p.log.WithField("state",
transactionImpl.state).Error("Failed to send message" +
- " by a non-open transaction.")
- runCallback(callback, nil, msg, newError(InvalidStatus,
"Failed to send message by a non-open transaction."))
- return
+ if p.options.DisableMultiSchema {
+ if msg.Schema != nil && p.options.Schema != nil &&
+ msg.Schema.GetSchemaInfo().hash() !=
p.options.Schema.GetSchemaInfo().hash() {
+ p.log.Errorf("The producer %s of the topic %s is
disabled the `MultiSchema`", p.producerName, p.topic)
+ return fmt.Errorf("msg schema can not match with
producer schema")
}
+ }
- if err := transactionImpl.registerProducerTopic(p.topic); err
!= nil {
- runCallback(callback, nil, msg, err)
- return
+ return nil
+}
+
+func (p *partitionProducer) updateSchema(sr *sendRequest) error {
+ var schema Schema
+ var schemaVersion []byte
+ var err error
+
+ if sr.msg.Schema != nil {
+ schema = sr.msg.Schema
+ } else if p.options.Schema != nil {
+ schema = p.options.Schema
+ }
+
+ if schema == nil {
+ return nil
+ }
+
+ schemaVersion = p.schemaCache.Get(schema.GetSchemaInfo())
+ if schemaVersion == nil {
+ schemaVersion, err = p.getOrCreateSchema(schema.GetSchemaInfo())
+ if err != nil {
+ return fmt.Errorf("get schema version fail, err: %w",
err)
}
- if err := transactionImpl.registerSendOrAckOp(); err != nil {
- runCallback(callback, nil, msg, err)
- return
+ p.schemaCache.Put(schema.GetSchemaInfo(), schemaVersion)
+ }
+
+ sr.schema = schema
+ sr.schemaVersion = schemaVersion
+ return nil
+}
+
+func (p *partitionProducer) updateUncompressPayload(sr *sendRequest) error {
+ // read payload from message
+ sr.uncompressedPayload = sr.msg.Payload
+
+ if sr.msg.Value != nil {
+ if sr.schema == nil {
+ p.log.Errorf("Schema encode message failed %s",
sr.msg.Value)
+ return newError(SchemaFailure, "set schema value
without setting schema")
}
- newCallback = func(id MessageID, producerMessage
*ProducerMessage, err error) {
- runCallback(callback, id, producerMessage, err)
- transactionImpl.endSendOrAckOp(err)
+
+ // payload and schema are mutually exclusive
+ // try to get payload from schema value only if payload is not
set
+ schemaPayload, err := sr.schema.Encode(sr.msg.Value)
+ if err != nil {
+ p.log.WithError(err).Errorf("Schema encode message
failed %s", sr.msg.Value)
+ return newError(SchemaFailure, err.Error())
}
+
+ sr.uncompressedPayload = schemaPayload
+ }
+
+ sr.uncompressedSize = int64(len(sr.uncompressedPayload))
+ return nil
+}
+
+func (p *partitionProducer) updateMetaData(sr *sendRequest) {
+ deliverAt := sr.msg.DeliverAt
+ if sr.msg.DeliverAfter.Nanoseconds() > 0 {
+ deliverAt = time.Now().Add(sr.msg.DeliverAfter)
+ }
+
+ sr.mm = p.genMetadata(sr.msg, int(sr.uncompressedSize), deliverAt)
+
+ // set default ReplicationClusters when DisableReplication
+ if sr.msg.DisableReplication {
+ sr.msg.ReplicationClusters = []string{"__local__"}
+ }
+
+ sr.sendAsBatch = !p.options.DisableBatching &&
+ sr.msg.ReplicationClusters == nil &&
+ deliverAt.UnixNano() < 0
+
+ if !sr.sendAsBatch {
+ // update sequence id for metadata, make the size of
msgMetadata more accurate
+ // batch sending will update sequence ID in the BatchBuilder
+ p.updateMetadataSeqID(sr.mm, sr.msg)
+ }
+
+ sr.deliverAt = deliverAt
+}
+
+func (p *partitionProducer) updateChunkInfo(sr *sendRequest) error {
+ checkSize := sr.uncompressedSize
+ if !sr.sendAsBatch {
+ sr.compressedPayload = p.compressionProvider.Compress(nil,
sr.uncompressedPayload)
+ sr.compressedSize = len(sr.compressedPayload)
+
+ // set the compress type in msgMetaData
+ compressionType := pb.CompressionType(p.options.CompressionType)
+ if compressionType != pb.CompressionType_NONE {
+ sr.mm.Compression = &compressionType
+ }
+
+ checkSize = int64(sr.compressedSize)
+ }
+
+ sr.maxMessageSize = int32(int64(p._getConn().GetMaxMessageSize()))
Review Comment:
> But the size of `PendingQueue` is decided by user. And if the size of
`dataChan` is set as `MaxPendingMessages`, it will not be the async limit.
dataChan and semaphore can work together to make it async, when there is
enough semaphore, add to the queue, or wait until the response back from the
broker and release a semaphore.
> I think we should find a way to solve the `p.getOrCreateSchema()` problem.
Since the schema can be set by the user at runtime, we can only solve it by
moving the blocking logic to `internalSend()', but at the same time, we have
to reserve memory and peding queue spaces before adding a message to dataChan,
so if we want to solve it, we must drop memLimit and the fixed length pending
queue.
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