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BootstrapState

Enum BootstrapState 

Source
pub enum BootstrapState {
    Start,
    PreCheckpoint {
        tvfs: Vec<Arc<VirtualTable>>,
        checkpoint_st: CompleteCheckpointState,
    },
    PreReparse {
        tvfs: Vec<Arc<VirtualTable>>,
        reparse_st: ReparseSchemaState,
    },
    BeginReadTxTs {
        read_st: ReadPersistentTxTsMaxState,
    },
    MetadataIo(MetadataIoInFlight),
    FinishInit {
        init_st: InitMetadataTableState,
    },
    FinishCheckpoint {
        checkpoint_st: CompleteCheckpointState,
    },
    Recover {
        recover_st: RecoverLogicalLogState,
    },
    LoadSequences {
        load_st: LoadSequenceDescriptorsState,
    },
    SyncAutoincrement {
        sync_st: SyncAutoincrementState,
    },
    AwaitingGlobalHeader,
}
Expand description

Sub state machine for MvStore::bootstrap_nonblock. Carried by the open state machine (OpenDbAsyncPhase::BootstrapMvStore) across the metadata-bootstrap IO chain so opening an MVCC database does not block on the log-header truncate / write / fsync sequence, the interrupted-checkpoint reconciliation, the schema reparse, or the metadata-table reads/writes.

Variants§

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Start

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PreCheckpoint

Pre-metadata: reconcile an interrupted checkpoint (non-blocking).

Fields

§tvfs: Vec<Arc<VirtualTable>>
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PreReparse

Pre-metadata: reparse the schema (non-blocking).

Fields

§tvfs: Vec<Arc<VirtualTable>>
§reparse_st: ReparseSchemaState
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BeginReadTxTs

Reading the persistent tx-ts-max from the MVCC metadata table to decide whether the metadata-bootstrap IO chain is needed.

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MetadataIo(MetadataIoInFlight)

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FinishInit

Finish: create/seed the MVCC metadata table (non-blocking).

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FinishCheckpoint

Finish: reconcile the interrupted checkpoint again after metadata writes.

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Recover

Replay the logical log into the MVCC store (non-blocking), then promote the bootstrap connection to a regular MVCC connection.

Fields

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LoadSequences

Recover sequence descriptors from each backing table (non-blocking). The pre-replay reparse missed backing tables created by committed-but- not-checkpointed CREATE SEQUENCE statements; this pass registers pure descriptors via the MVCC-aware SQL path. The runtime watermark is never read — every nextval queries disk on demand.

Fields

§load_st: LoadSequenceDescriptorsState
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SyncAutoincrement

Compatibility sync for AUTOINCREMENT tables created in WAL mode (where the watermark lives in sqlite_sequence) and then reopened in MVCC mode (where the disk-only allocation path reads backing tables). Non-blocking.

Fields

§sync_st: SyncAutoincrementState
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AwaitingGlobalHeader

Trait Implementations§

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impl Default for BootstrapState

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fn default() -> BootstrapState

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

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