@clickup/pg-microsharding/dist/internal/getSlotInfo.d.ts

Microshards support for PostgreSQL

export interface SlotInfo {
    srcLsn: string;
    dstLsn: string;
    gap: number;
    gapTillLatch: number;
    lagSec: number | null;
    latched: {
        srcLsn: string;
        at: number;
    };
}
/**
 * Returns the difference between src LSN and dst LSN (gap), along with some
 * estimation on how much seconds they are apart from each other. To measure
 * that time, we "latch" an LSN on the src and then wait until dst crosses that
 * latched LSN. Once it does, we remember the actual astronomical time it took
 * to cross, and then latch the src LSN again (towards the next estimation
 * cycle). When the caller decides that the time is small enough, it stops
 * polling; and if the time is large (e.g. more than 20 seconds), it continues
 * to call getSlotInfo() over and over again until that time drops below the
 * needed 20 seconds threshold.
 */
export declare function getSlotInfo({ dsn, slotName, }: {
    dsn: string;
    slotName: string;
}, prevSlotInfo: SlotInfo | undefined): Promise<SlotInfo>;
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