TxnIdGenerator

risingwave_common::transaction::transaction_id

Struct TxnIdGenerator 

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pub struct TxnIdGenerator {
    worker_id: WorkerId,
    sequence: AtomicU32,
}
Expand description

TxnIdGenerator generates unique transaction ids as following format:

worker idsequence
32 bits32 bits

Currently, we just need to guarantee the transaction ids are unique at runtime. It doesn’t matter, even if the sequence starts from zero after recovery.

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§worker_id: WorkerId§sequence: AtomicU32

Implementations§

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impl TxnIdGenerator

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pub fn new(worker_id: WorkerNodeId) -> Self

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pub fn gen_txn_id(&self) -> TxnId

Trait Implementations§

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impl Debug for TxnIdGenerator

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

Formats the value using the given formatter. Read more

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