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sql: add two TiDB error codes #466

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May 15, 2018
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sql: add two TiDB error codes #466

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sql: add two TiDB error codes
lilin90 May 15, 2018
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sql: update error code description
lilin90 May 15, 2018
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4 changes: 3 additions & 1 deletion sql/error.md
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Expand Up @@ -13,6 +13,8 @@ TiDB is compatible with the error codes in MySQL, and in most cases returns the

| Error code | Description | Solution |
| ---- | ------- | --------- |
| 8001 | The memory used by the request exceeds the threshold limit for the TiDB memory usage. | Increase the value of the system variable with the `tidb_mem_quota` prefix. |
| 8002 | To guarantee consistency, a transaction with the `SELECT FOR UPDATE` statement cannot be retried when it encounters a commit conflict. TiDB rolls back the transaction and returns this error. | Retry the failed transaction. |
| 9001 | The PD request timed out. | Check the state/monitor/log of the PD server and the network between the TiDB server and the PD server. |
| 9002 | The TiKV request timed out. | Check the state/monitor/log of the TiKV server and the network between the TiDB server and the TiKV server. |
| 9003 | The TiKV server is busy and this usually occurs when the workload is too high. | Check the state/monitor/log of the TiKV server. |
Expand All @@ -23,4 +25,4 @@ TiDB is compatible with the error codes in MySQL, and in most cases returns the

## Troubleshooting

See the [troubleshooting](../trouble-shooting.md) and [FAQ](../FAQ.md) documents.
See the [troubleshooting](../trouble-shooting.md) and [FAQ](../FAQ.md) documents.