mz_storage::source::source_reader_pipeline

Struct RawSourceCreationConfig

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pub struct RawSourceCreationConfig {
Show 18 fields
    pub name: String,
    pub id: GlobalId,
    pub source_exports: BTreeMap<GlobalId, IndexedSourceExport<CollectionMetadata>>,
    pub worker_id: usize,
    pub worker_count: usize,
    pub timestamp_interval: Duration,
    pub now_fn: NowFn,
    pub metrics: StorageMetrics,
    pub storage_metadata: CollectionMetadata,
    pub as_of: Antichain<Timestamp>,
    pub resume_uppers: BTreeMap<GlobalId, Antichain<Timestamp>>,
    pub source_resume_uppers: BTreeMap<GlobalId, Vec<Row>>,
    pub persist_clients: Arc<PersistClientCache>,
    pub source_statistics: SourceStatistics,
    pub shared_remap_upper: Rc<RefCell<Antichain<Timestamp>>>,
    pub config: StorageConfiguration,
    pub remap_collection_id: GlobalId,
    pub busy_signal: Arc<Semaphore>,

}
Expand description

Shared configuration information for all source types. This is used in the create_raw_source functions, which produce raw sources.

Fields§

§name: String

The name to attach to the underlying timely operator.

§id: GlobalId

The ID of this instantiation of this source.

§source_exports: BTreeMap<GlobalId, IndexedSourceExport<CollectionMetadata>>

The details of the outputs from this ingestion.

§worker_id: usize

The ID of the worker on which this operator is executing

§worker_count: usize

The total count of workers

§timestamp_interval: Duration

Granularity with which timestamps should be closed (and capabilities downgraded).

§now_fn: NowFn

The function to return a now time.

§metrics: StorageMetrics

The metrics & registry that each source instantiates.

§storage_metadata: CollectionMetadata

Storage Metadata

§as_of: Antichain<Timestamp>

The upper frontier this source should resume ingestion at

§resume_uppers: BTreeMap<GlobalId, Antichain<Timestamp>>

For each source export, the upper frontier this source should resume ingestion at in the system time domain.

§source_resume_uppers: BTreeMap<GlobalId, Vec<Row>>

For each source export, the upper frontier this source should resume ingestion at in the source time domain.

Since every source has a different timestamp type we carry the timestamps of this frontier in an encoded Vec<Row> form which will get decoded once we reach the connection specialized functions.

§persist_clients: Arc<PersistClientCache>

A handle to the persist client cache

§source_statistics: SourceStatistics

Place to share statistics updates with storage state.

§shared_remap_upper: Rc<RefCell<Antichain<Timestamp>>>

Enables reporting the remap operator’s write frontier.

§config: StorageConfiguration

Configuration parameters, possibly from LaunchDarkly

§remap_collection_id: GlobalId

The ID of this source remap/progress collection.

§busy_signal: Arc<Semaphore>

Implementations§

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impl RawSourceCreationConfig

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pub fn responsible_worker<P: Hash>(&self, partition: P) -> usize

Returns the worker id responsible for handling the given partition.

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pub fn responsible_for<P: Hash>(&self, partition: P) -> bool

Returns true if this worker is responsible for handling the given partition.

Trait Implementations§

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impl Clone for RawSourceCreationConfig

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fn clone(&self) -> RawSourceCreationConfig

Returns a copy of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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