Error Codes Reference

When a REST API request fails, rekuiper returns a structured JSON payload containing an error code and a diagnostic message.

Error Code Descriptions

The table below lists system error codes and their associated failure categories:

Error Code	Error Category	Description
1000	Undefined Error	Represents an unclassified internal system error.
1002	Resource Not Found	Indicates that the requested resource (stream, table, rule, or plugin) does not exist.
1003	I/O Error	Indicates an input or output communication failure in a source or sink connector.
1004	Encoding Error	Indicates a payload serialization, deserialization, or encoding failure.
2001	SQL Syntax Error	Indicates that the SQL statement contains syntax errors.
2101	SQL Plan Error	Indicates that the query optimizer failed to generate an execution plan.
2201	SQL Executor Error	Indicates that the runtime failed to instantiate pipeline execution operators.
3000	Stream or Table Error	Indicates an error during stream or table definition management.
4000	Rule Error	Indicates an error during rule creation, lifecycle management, or execution.
5000	Configuration Error	Indicates invalid or unparseable configuration properties.