{"record":{"id":"624cae4fcb5c5712","repo":"nautechsystems/nautilus_trader","slug":"failed-to-finalize-pool-event-sync-progress-e","errorCode":null,"errorMessage":"Failed to finalize pool event sync progress: {e}","messagePattern":"Failed to finalize pool event sync progress: (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/adapters/blockchain/src/cache/database.rs","lineNumber":1667,"sourceCode":"                \"\n                UPDATE pool\n                SET\n                    event_sync_version = GREATEST(event_sync_version, $4),\n                    last_full_sync_block_number =\n                        GREATEST(COALESCE(last_full_sync_block_number, $5), $5)\n                WHERE chain_id = $1\n                AND dex_name = $2\n                AND pool_identifier = $3\n                \",\n            )\n            .bind(chain_id as i32)\n            .bind(dex.to_string())\n            .bind(pool_identifier.as_ref())\n            .bind(version as i32)\n            .bind(block_number as i64)\n            .execute(&mut *transaction)\n            .await\n            .map_err(|e| anyhow::anyhow!(\"Failed to finalize pool event sync progress: {e}\"))?;\n        }\n\n        transaction.commit().await?;\n        Ok(())\n    }\n\n    /// Retrieves the maximum block number from a specific table for a given pool.\n    /// This is useful to detect orphaned data where events were inserted but progress wasn't updated.\n    ///\n    /// # Errors\n    ///\n    /// Returns an error if the database query fails.\n    pub async fn get_table_last_block(\n        &self,\n        chain_id: u32,\n        table_name: &str,\n        pool_identifier: &PoolIdentifier,\n    ) -> anyhow::Result<Option<u64>> {","sourceCodeStart":1649,"sourceCodeEnd":1685,"githubUrl":"https://github.com/nautechsystems/nautilus_trader/blob/18893faf8b356be3320add8de2f861b0b647cf06/crates/adapters/blockchain/src/cache/database.rs#L1649-L1685","documentation":"Wraps a sqlx error from the final UPSERT that records the pool event sync version and last synced block, completing the transaction started for event-family checkpoints. Failure rolls back the entire transaction via `transaction.commit().await?` semantics — actually the rollback occurs on drop — leaving prior checkpoints unapplied.","triggerScenarios":"Calling the finalize/commit path when the connection is lost mid-transaction, the state table is missing, or the server aborts the transaction (deadlock, serialization failure, statement timeout).","commonSituations":"Concurrent indexers finalizing the same pool causing deadlocks; long transactions hitting idle_in_transaction_session_timeout; missing migrations on fresh deployments.","solutions":["Retry the full transaction on deadlock/serialization errors","Run migrations to ensure the pool event sync state table exists","Keep the transaction short and avoid external I/O inside it","Check Postgres logs for the concrete server-side error"],"exampleFix":null,"handlingStrategy":"retry","validationCode":"sqlx::query(\"SELECT 1 FROM pool_event_sync_state LIMIT 1\").fetch_optional(&pool).await?;","typeGuard":null,"tryCatchPattern":"if let Err(e) = finalize_pool_event_sync(...).await {\n    if is_transient(&e) { retry_with_backoff(...).await? } else { return Err(e) }\n}","preventionTips":["Ensure the transaction commits promptly to avoid idle-in-transaction timeouts","Handle Postgres deadlocks via whole-transaction retries","Apply migrations before indexing"],"tags":["database","sqlx","transaction","write-failure"],"backgroundTag":"database-write-failed","analyzedSha":"18893faf8b356be3320add8de2f861b0b647cf06","analyzedAt":"2026-09-08T20:49:34.690Z","contentChangedAt":"2026-09-08T20:49:34.690Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}