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Status
Current state: "Under Discussion" Accepted
Discussion thread: here
JIRA: here
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Public Interfaces
New property:
| Name | Type | Default | Importance | Deprecated | Removed | Description |
|---|---|---|---|---|---|---|
processing.exception.handler.global.enabled | Boolean | False | HIGH | 4.3 | 5.0 | When false (default), maintains backwards-compatible behaviour where global exceptions terminate or gracefully shut down the application. When true, enables the ProcessingExceptionHandler for GlobalKTable exceptions. This config will be removed in Kafka Streams 5.0, where global exception handling will be enabled by default |
Proposed Changes
This KIP extends the applicability of the existing ProcessingExceptionHandler to GlobalKTable processors. Currently, this exception handler only applies to regular stream processing (KStream/KTable). After this KIP, the same handler will also handle processing exceptions in GlobalKTable. The feature is gated behind a configuration flag to prevent unexpected behaviour in existing handler implementations that may not be designed to handle GlobalKTable exceptions, which could cause crashes or undesired side effects. This provides a safe migration path for users to test and adapt their exception handling logic.
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