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Publication date: December 20, 2022

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Description

In CockroachDB to , changefeeds using the initial_scan='only' option can complete with a successful status even if not all messages have been emitted to the sink. This occurs consistently unless the table is very small. The same issue may occur if a changefeed with schema_change_policy='stop' encounters a schema change. The changefeed may not emit any changes that occurred prior to the schema change being emitted.

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Statement

This is resolved in CockroachDB by a fix that ensures all events correctly flush out of all buffers prior to the changefeed exiting. The fix has been applied to maintenance releases of CockroachDB and later.

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Mitigation

Users of CockroachDB to are encouraged to upgrade to or a later version.

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Impact

Data expected to be emitted by changefeeds may not be complete. Please reach out to the support team if more information or assistance is needed.