nautechsystems/nautilus_trader · error · anyhow::Error

Failed to update pool initial price and tick: {e}

Error message

Failed to update pool initial price and tick: {e}

What it means

Raised when an UPDATE setting a pool's initial price and tick (from an initialize event: tick and sqrt_price_x96 as a string) fails at `.execute`. The sqlx error is wrapped with this message. If the pool row does not exist, the UPDATE affects zero rows silently (this error fires only on a driver failure, not on zero rows affected).

Source

Thrown at crates/adapters/blockchain/src/cache/database.rs:2346

            "
            UPDATE pool
            SET
                initial_tick = $4,
                initial_sqrt_price_x96 = $5
            WHERE chain_id = $1
            AND dex_name = $2
            AND pool_identifier = $3
            ",
        )
        .bind(chain_id as i32)
        .bind(initialize_event.dex.name.to_string())
        .bind(initialize_event.pool_identifier.as_ref())
        .bind(initialize_event.tick)
        .bind(initialize_event.sqrt_price_x96.to_string())
        .execute(&self.pool)
        .await
        .map(|_| ())
        .map_err(|e| anyhow::anyhow!("Failed to update pool initial price and tick: {e}"))
    }

    /// Loads the latest usable pool snapshot from the database.
    ///
    /// Returns the most recent snapshot usable as a replay start point: on-chain validated or
    /// replay-derived. Snapshots that failed on-chain validation are excluded.
    ///
    /// # Errors
    ///
    /// Returns an error if the database query fails.
    pub async fn load_latest_valid_pool_snapshot(
        &self,
        chain_id: u32,
        pool_identifier: &PoolIdentifier,
    ) -> anyhow::Result<Option<PoolSnapshot>> {
        self.load_latest_pool_snapshot(chain_id, pool_identifier, None, true)
            .await
    }

View on GitHub (pinned to 18893faf8b)

Solutions

1. Read the `{e}` tail for the exact sqlx/PostgreSQL error
2. Ensure the pool row is inserted before its initialize event is applied
3. Verify sqrt_price_x96 fits the column's numeric precision and is bound as text for a numeric column
4. Run pending migrations and check connection health
5. Consider checking rows_affected and erroring/warning when the pool row is absent

Example fix

// before
.map_err(|e| anyhow::anyhow!("Failed to update pool initial price and tick: {e}"))
// after: detect no-op updates on missing pool row
let rows = query.execute(&self.pool).await
    .map_err(|e| anyhow::anyhow!("Failed to update pool initial price and tick: {e}"))?;
if rows.rows_affected() == 0 {
    tracing::warn!(pool = %initialize_event.pool_identifier.as_ref().unwrap(), "initialize update matched no pool row");
}

fn validate_initialize_event(event: &PoolInitializeEvent) -> anyhow::Result<()> {
    anyhow::ensure!(event.pool_identifier.is_some(), "missing pool_identifier");
    anyhow::ensure!(!event.sqrt_price_x96.to_string().is_empty(), "missing sqrt_price_x96");
    Ok(())
}

fn has_pool_identifier(e: &PoolInitializeEvent) -> bool { e.pool_identifier.is_some() }

match update_pool_initial_price_and_tick(&event).await {
    Ok(()) => {},
    Err(e) => {
        tracing::error!("initialize update failed: {e:#}");
        ensure_pool_row(event.pool_identifier.as_ref().unwrap()).await?;
        update_pool_initial_price_and_tick(&event).await?;
    }
}

When it happens

Trigger: Calling the update-pool-initial-price-and-tick method when Postgres errors on the statement: the target pool row is missing (no error but no update), sqrt_price_x96 string does not fit the numeric column, FK/connection issues, or schema drift.

Common situations: Initialize events arriving before the pool row is inserted (ordering bug); sqrt_price_x96 exceeding numeric precision; stale connections after failover; migrations not applied in the environment.

Related errors

• Failed to seed chain table: {e}
• Failed to call create_block_partition for chain {}: {e}
• Failed to call create_token_partition for chain {}: {e}
• Failed to get block info for chain {}: {}
• Failed to insert into block table: {e}

AI-assisted analysis of nautechsystems/nautilus_trader@18893faf8b (2026-09-08). Data as JSON: /api/errors/ddb544c6bf8fee54. Report an issue: GitHub.