{"id":"db5e73fe0ecb3303","repo":"redis/redis-py","slug":"debug-segfault-is-intentionally-not-implemented-in","errorCode":null,"errorMessage":"DEBUG SEGFAULT is intentionally not implemented in the client. For more information, see https://redis.io/commands/debug-segfault","messagePattern":"DEBUG SEGFAULT is intentionally not implemented in the client\\. For more information, see https://redis\\.io/commands/debug-segfault","errorType":"exception","errorClass":"NotImplementedError","httpStatus":null,"severity":"critical","filePath":"redis/commands/core.py","lineNumber":1517,"sourceCode":"    ) -> dict[str, str | int] | bytes | str: ...\n\n    @overload\n    def debug_object(\n        self: AsyncClientProtocol, key: KeyT, **kwargs\n    ) -> Awaitable[dict[str, str | int] | bytes | str]: ...\n\n    def debug_object(self, key: KeyT, **kwargs) -> (\n        dict[str, str | int] | bytes | str\n    ) | Awaitable[dict[str, str | int] | bytes | str]:\n        \"\"\"\n        Returns version specific meta information about a given key\n\n        For more information, see https://redis.io/commands/debug-object\n        \"\"\"\n        return self.execute_command(\"DEBUG OBJECT\", key, **kwargs)\n\n    def debug_segfault(self, **kwargs) -> None:\n        raise NotImplementedError(\n            \"\"\"\n            DEBUG SEGFAULT is intentionally not implemented in the client.\n\n            For more information, see https://redis.io/commands/debug-segfault\n            \"\"\"\n        )\n\n    @overload\n    def echo(self: SyncClientProtocol, value: EncodableT, **kwargs) -> bytes | str: ...\n\n    @overload\n    def echo(\n        self: AsyncClientProtocol, value: EncodableT, **kwargs\n    ) -> Awaitable[bytes | str]: ...\n\n    def echo(self, value: EncodableT, **kwargs) -> (bytes | str) | Awaitable[\n        bytes | str\n    ]:","sourceCodeStart":1499,"sourceCodeEnd":1535,"githubUrl":"https://github.com/redis/redis-py/blob/da03cdc7e8731092b13e395605c3c1fb2de25de1/redis/commands/core.py#L1499-L1535","documentation":"debug_segfault is a stub that always raises NotImplementedError. DEBUG SEGFAULT intentionally crashes the Redis server process for testing purposes; exposing it as a normal client method would be a severe footgun, so the library refuses to implement it.","triggerScenarios":"Calling r.debug_segfault() — always raises. Calling it in a test harness that enumerates all debug_* methods.","commonSituations":"Developer running chaos/fault-injection tests and reaching for the python method. Copying a crash-reproduction recipe from a blog. Expecting the client to mirror every DEBUG subcommand.","solutions":["Do not call debug_segfault from application code — it would crash the server.","If you genuinely need to test server crashes, use execute_command('DEBUG', 'SEGFAULT') in a disposable test environment.","For safe debug operations, use r.debug_object(key) instead."],"exampleFix":"# before\nr.debug_segfault()\n# after (only in a throwaway test env)\nr.execute_command('DEBUG', 'SEGFAULT')","handlingStrategy":"validation","validationCode":"# never call debug_segfault in production code\n# remove or guard any code path that reaches it","typeGuard":null,"tryCatchPattern":null,"preventionTips":["DEBUG SEGFAULT crashes the Redis server — the stub exists to prevent accidental invocation.","Only use it via execute_command in isolated, disposable test environments."],"tags":["not-implemented","debug","dangerous","server-crash"],"analyzedSha":"da03cdc7e8731092b13e395605c3c1fb2de25de1","analyzedAt":"2026-08-04T20:26:47.563Z","schemaVersion":2}