struct TransactionalProducer {Show 13 fields
task_name: String,
data_topic: String,
progress_topic: String,
progress_key: ProgressKey,
sink_version: u64,
partition_count: Arc<AtomicU64>,
_partition_count_task: AbortOnDropHandle<()>,
producer: ThreadedProducer<TunnelingClientContext<MzClientContext>>,
statistics: SinkStatistics,
staged_messages: u64,
staged_bytes: u64,
socket_timeout: Duration,
transaction_timeout: Duration,
}
Fields§
§task_name: String
The task name used for any blocking calls spawned onto the tokio threadpool.
data_topic: String
The topic where all the updates go.
progress_topic: String
The topic where all the upper frontiers go.
progress_key: ProgressKey
The key each progress record is associated with.
sink_version: u64
The version of this sink, used to fence out previous versions from writing.
partition_count: Arc<AtomicU64>
The number of partitions in the target topic.
_partition_count_task: AbortOnDropHandle<()>
A task to periodically refresh the partition count.
producer: ThreadedProducer<TunnelingClientContext<MzClientContext>>
The underlying Kafka producer.
statistics: SinkStatistics
A handle to the metrics associated with this sink.
staged_messages: u64
The number of messages staged for the currently open transactions. It is reset to zero every time a transaction commits.
staged_bytes: u64
The total number bytes staged for the currently open transactions. It is reset to zero every time a transaction commits.
socket_timeout: Duration
The timeout to use for network operations.
transaction_timeout: Duration
The timeout to use for committing transactions.
Implementations§
Source§impl TransactionalProducer
impl TransactionalProducer
Sourceasync fn new(
sink_id: GlobalId,
connection: &KafkaSinkConnection,
storage_configuration: &StorageConfiguration,
metrics: Arc<KafkaSinkMetrics>,
statistics: SinkStatistics,
sink_version: u64,
) -> Result<(Self, Antichain<Timestamp>), ContextCreationError>
async fn new( sink_id: GlobalId, connection: &KafkaSinkConnection, storage_configuration: &StorageConfiguration, metrics: Arc<KafkaSinkMetrics>, statistics: SinkStatistics, sink_version: u64, ) -> Result<(Self, Antichain<Timestamp>), ContextCreationError>
Initializes a transcational producer for the sink identified by sink_id
. After this call
returns it is guranteed that all previous TransactionalProducer
instances for the same
sink have been fenced out (i.e init_transations()
has been called successfully).
Sourceasync fn spawn_blocking<F, R>(&self, f: F) -> Result<R, ContextCreationError>where
F: FnOnce(ThreadedProducer<TunnelingClientContext<MzClientContext>>) -> Result<R, KafkaError> + Send + 'static,
R: Send + 'static,
async fn spawn_blocking<F, R>(&self, f: F) -> Result<R, ContextCreationError>where
F: FnOnce(ThreadedProducer<TunnelingClientContext<MzClientContext>>) -> Result<R, KafkaError> + Send + 'static,
R: Send + 'static,
Runs the blocking operation f
on the producer in the tokio threadpool and checks for SSH
status in case of failure.
async fn begin_transaction(&self) -> Result<(), ContextCreationError>
Sourcefn send(
&mut self,
message: &KafkaMessage,
time: Timestamp,
diff: Diff,
) -> Result<(), KafkaError>
fn send( &mut self, message: &KafkaMessage, time: Timestamp, diff: Diff, ) -> Result<(), KafkaError>
Synchronously puts the provided message to librdkafka’s send queue. This method only returns an error if the queue is full. Handling this error by buffering the message and retrying is equivalent to adjusting the maximum number of queued items in rdkafka so it is adviced that callers only handle this error in order to apply backpressure to the rest of the system.
Sourceasync fn commit_transaction(
&mut self,
upper: Antichain<Timestamp>,
) -> Result<(), ContextCreationError>
async fn commit_transaction( &mut self, upper: Antichain<Timestamp>, ) -> Result<(), ContextCreationError>
Commits all the staged updates of the currently open transaction plus a progress record
describing upper
to the progress topic.
Auto Trait Implementations§
impl Freeze for TransactionalProducer
impl !RefUnwindSafe for TransactionalProducer
impl !Send for TransactionalProducer
impl !Sync for TransactionalProducer
impl Unpin for TransactionalProducer
impl !UnwindSafe for TransactionalProducer
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