Error handling fundamentals

OceanBase Database offers a wide range of channels for detecting exceptions, such as monitoring metrics, system logs, and trace logs. When an error occurs, it is typically exposed through multiple channels at once. If some channels are unavailable, you can flexibly use others to identify the issue. Since each channel provides information from a different perspective, leveraging multiple channels gives you a more complete picture of any anomalies.

Errors rarely happen in isolation. When you notice a particular error, there are often many related exception messages appearing in different places. It’s important to understand exactly what each exception means so you can identify the key information. By focusing on the critical anomalies and investigating further, you can trace back to the original source of the problem.

OceanBase Database provides end-to-end tracing. This feature helps cut through the complexity of call chains, so when timeout issues occur, you can quickly determine whether the problem is within OceanBase's internal components or in the network.