What causes KAFKA_OFFSET_COMMIT_FAILED?

Processing time per batch exceeded max.poll.interval.ms, triggering a consumer group rebalance. The Kafka broker became unavailable during the commit operation. A large number of records per poll (max.poll.records) caused processing to exceed the interval limit. Snowflake ingestion latency spiked due to a suspended warehouse or high load

How do I fix KAFKA_OFFSET_COMMIT_FAILED?

Step 1: Check the Kafka Connect worker logs for CommitFailedException details and timestamps.. Step 2: Increase max.poll.interval.ms in the Kafka connector configuration to allow more processing time.. Step 3: Reduce max.poll.records to decrease the batch size so each poll completes within the interval.. Step 4: Ensure the Snowflake destination table's target warehouse is running and not suspended.. Step 5: Monitor Kafka consumer group lag after the fix to confirm offsets are being committed consistently.

High severityexecution

Power BI Refresh Error:
KAFKA_OFFSET_COMMIT_FAILED

What does this error mean?

The Snowflake Kafka Connector failed to commit consumer offsets back to Kafka because the consumer group rebalanced before the commit could complete, causing potential message redelivery.

Common causes

1Processing time per batch exceeded max.poll.interval.ms, triggering a consumer group rebalance
2The Kafka broker became unavailable during the commit operation
3A large number of records per poll (max.poll.records) caused processing to exceed the interval limit
4Snowflake ingestion latency spiked due to a suspended warehouse or high load

How to fix it

1Step 1: Check the Kafka Connect worker logs for CommitFailedException details and timestamps.
2Step 2: Increase max.poll.interval.ms in the Kafka connector configuration to allow more processing time.
3Step 3: Reduce max.poll.records to decrease the batch size so each poll completes within the interval.
4Step 4: Ensure the Snowflake destination table's target warehouse is running and not suspended.
5Step 5: Monitor Kafka consumer group lag after the fix to confirm offsets are being committed consistently.

Frequently asked questions

Will messages be lost if the offset commit fails?

No — offset commit failures cause redelivery, not message loss. Records will be re-ingested, so you may see duplicates. Use deduplication in your Snowflake transformations as a safeguard.

What is the recommended max.poll.interval.ms for Snowflake Kafka Connector?

The default is 300000 ms (5 minutes). For high-volume pipelines, increasing to 600000 ms (10 minutes) is common, but the right value depends on your average batch size and Snowflake ingestion speed.