Method start_wal_catchup

nodedb-cluster/src/migration.rs:117–130

Transition to Phase 2: WAL Catch-up.

(&mut self, start_lsn: u64, source_lsn: u64)

    /// Transition to Phase 2: WAL Catch-up.
    pub fn start_wal_catchup(&mut self, start_lsn: u64, source_lsn: u64) {
        self.phase = MigrationPhase::WalCatchUp {
            start_lsn,
            current_lsn: start_lsn,
            source_lsn,
        };
        info!(
            vshard = self.vshard_id,
            start_lsn,
            source_lsn,
            lag = source_lsn - start_lsn,
            "starting wal catch-up"
        );
    }

    /// Update WAL catch-up progress.
    pub fn update_wal_catchup(&mut self, current_lsn: u64, source_lsn: u64) {