forked from mooncake-track/Mooncake
23 lines
3.0 KiB
Markdown
23 lines
3.0 KiB
Markdown
# Error Code Explanation
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TransferEngine may generate various types of errors during execution. For most APIs, the return value indicates the error reason. For details, refer to `mooncake-transfer-engine/include/error.h`.
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| Group | Return Value | Description |
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|------------|-----------------------------|-----------------------------------------------------------------------------------------------------------|
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| Normal | 0 | Normal execution |
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| Error Args | ERR_INVALID_ARGUMENT | Input parameters are incorrect (and cannot be detailed into other items in this group) |
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| | ERR_TOO_MANY_REQUESTS | The number of requests passed by the user when calling the `SubmitTransfer` interface exceeds the maximum value specified by the allocated `BatchID` |
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| | ERR_ADDRESS_NOT_REGISTERED | The source address and/or target address in the request initiated by the user are not registered (including the situation where it has been registered locally but not uploaded to the metadata server) |
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| | ERR_BATCH_BUSY | Reclaim a `BatchID` that is currently executing a request |
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| | ERR_DEVICE_NOT_FOUND | No available RDMA device to execute the user's request |
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| | ERR_ADDRESS_OVERLAPPED | Registering overlapping memory areas multiple times |
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| Handshake | ERR_DNS | Local server name is not a valid DNS hostname or IP address, preventing other nodes from handshaking with this node |
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| | ERR_SOCKET | Errors related to TCP Socket during the handshake process |
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| | ERR_MALFORMED_JSON | Data format error during handshake exchange |
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| | ERR_REJECT_HANDSHAKE | Peer rejects the handshake due to peer's errors |
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| Other | ERR_METADATA | Failed to communicate with metadata server |
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| | ERR_ENDPOINT | Exceptions during the creation and use of `RdmaEndPoint` objects |
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| | ERR_NUMA | The system does not support numa interface |
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| | ERR_CLOCK | The system does not support `clock_gettime` interface |
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| | ERR_MEMORY | Out of memory |
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