What causes HYBRID_TABLE_TRANSACTION_CONFLICT?

Two concurrent transactions attempted to update or delete the same row in a hybrid table. A long-running transaction held a row lock while another transaction tried to write to the same row. A high-volume OLTP workload created too many concurrent writers on the same hybrid table. Deadlock between two transactions each waiting for the other's row lock

How do I fix HYBRID_TABLE_TRANSACTION_CONFLICT?

Step 1: Implement retry logic in the application layer — catch the conflict error and retry the transaction with exponential backoff.. Step 2: Review the transaction design to minimize lock contention — avoid holding locks across user interactions or network calls.. Step 3: Use short, focused transactions that acquire and release row locks quickly.. Step 4: Add a queue or serialization layer for high-concurrency writes to the same rows.. Step 5: Monitor SNOWFLAKE.ACCOUNT_USAGE.QUERY_HISTORY for long-running transactions that may be causing lock contention.

High severityexecution

Power BI Refresh Error:
HYBRID_TABLE_TRANSACTION_CONFLICT

What does this error mean?

A transaction on a Snowflake hybrid table failed due to a conflict with a concurrent transaction, because hybrid tables enforce row-level locking unlike standard Snowflake tables.

Common causes

1Two concurrent transactions attempted to update or delete the same row in a hybrid table
2A long-running transaction held a row lock while another transaction tried to write to the same row
3A high-volume OLTP workload created too many concurrent writers on the same hybrid table
4Deadlock between two transactions each waiting for the other's row lock

How to fix it

1Step 1: Implement retry logic in the application layer — catch the conflict error and retry the transaction with exponential backoff.
2Step 2: Review the transaction design to minimize lock contention — avoid holding locks across user interactions or network calls.
3Step 3: Use short, focused transactions that acquire and release row locks quickly.
4Step 4: Add a queue or serialization layer for high-concurrency writes to the same rows.
5Step 5: Monitor SNOWFLAKE.ACCOUNT_USAGE.QUERY_HISTORY for long-running transactions that may be causing lock contention.

Frequently asked questions

Do standard Snowflake tables also have row-level locking?

No — standard Snowflake tables use multi-version concurrency control (MVCC) at the table level. Hybrid tables are unique in Snowflake for supporting row-level locking to enable OLTP workloads.

What is the recommended retry pattern for Snowflake hybrid table conflicts?

Use exponential backoff with jitter: start with a 50ms delay, double each retry, add random jitter of 0-50ms, and retry up to 5 times before failing permanently.