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LakehouseSinkMetrics

laminar_connectors::lakehouse::metrics

Struct LakehouseSinkMetrics 

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pub struct LakehouseSinkMetrics {
    pub rows_flushed: IntCounter,
    pub bytes_written: IntCounter,
    pub flush_count: IntCounter,
    pub commits: IntCounter,
    pub errors_total: IntCounter,
    pub epochs_rolled_back: IntCounter,
    pub changelog_deletes: IntCounter,
}
Expand description

Prometheus-backed counters for Lakehouse sink connector statistics.

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§rows_flushed: IntCounter

Total rows flushed to storage (Parquet/ORC/etc.).

§bytes_written: IntCounter

Total bytes written to storage.

§flush_count: IntCounter

Total number of flush operations.

§commits: IntCounter

Total number of commits (transactions/snapshots).

§errors_total: IntCounter

Total errors encountered.

§epochs_rolled_back: IntCounter

Total epochs rolled back.

§changelog_deletes: IntCounter

Total changelog DELETE operations processed.

Implementations§

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impl LakehouseSinkMetrics

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pub fn new(registry: Option<&Registry>) -> Self

Creates a new metrics instance with all counters at zero.

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pub fn record_flush(&self, records: u64, bytes: u64)

Records a successful flush of records rows totaling bytes.

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pub fn record_commit(&self)

Records a successful commit (transaction/snapshot).

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pub fn record_error(&self)

Records a write or I/O error.

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pub fn record_rollback(&self)

Records an epoch rollback.

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pub fn record_deletes(&self, count: u64)

Records changelog DELETE operations processed.

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pub fn populate_metrics(&self, metrics: &mut ConnectorMetrics, prefix: &str)

Populates standard ConnectorMetrics fields and adds common custom metrics with a prefix.

The prefix is used for custom metrics keys, e.g., "{prefix}.flush_count".

Trait Implementations§

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impl Clone for LakehouseSinkMetrics

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fn clone(&self) -> LakehouseSinkMetrics

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for LakehouseSinkMetrics

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for LakehouseSinkMetrics

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fn default() -> Self

Returns the “default value” for a type. Read more

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