alibaba/nacos · error · NacosException

-400

-400

Error message

Cross-namespace clone is not supported by this implementation.

What it means

Error "Cross-namespace clone is not supported by this implementation." thrown in alibaba/nacos.

Source

Thrown at maintainer-client/src/main/java/com/alibaba/nacos/maintainer/client/config/ConfigMaintainerService.java:528

     *
     * @param sourceNamespaceId Source namespace ID (optional, defaults to "public").
     * @param targetNamespaceId Target namespace ID (optional, defaults to "public").
     * @param cloneInfos        List of configurations to clone (required).
     * @param srcUser           Source user (optional).
     * @param policy            Conflict resolution policy (required).
     * @return A map containing the clone result (e.g., success count, unrecognized data).
     * @throws NacosException If the clone operation fails.
     */
    @Since("3.2.3")
    default Map<String, Object> cloneConfig(String sourceNamespaceId, String targetNamespaceId,
        List<ConfigCloneInfo> cloneInfos, String srcUser, SameConfigPolicy policy)
        throws NacosException {
        String sourceNamespace = StringUtils.isBlank(sourceNamespaceId)
            ? Constants.DEFAULT_NAMESPACE_ID : sourceNamespaceId;
        String targetNamespace = StringUtils.isBlank(targetNamespaceId)
            ? Constants.DEFAULT_NAMESPACE_ID : targetNamespaceId;
        if (!StringUtils.equals(sourceNamespace, targetNamespace)) {
            throw new NacosException(NacosException.CLIENT_INVALID_PARAM,
                "Cross-namespace clone is not supported by this implementation.");
        }
        return cloneConfig(targetNamespace, cloneInfos, srcUser, policy);
    }
    
    /**
     * Query configurations list by namespace.
     *
     * @param namespaceId Namespace ID (required).
     * @return A list of configurations in the specified namespace.
     * @throws NacosException If the namespace is invalid or the query fails.
     */
    @Since("3.0.0")
    List<ConfigBasicInfo> getConfigListByNamespace(String namespaceId) throws NacosException;
    
    /**
     * Get the listeners of a configuration by dataId and groupName.
     *

View on GitHub (pinned to 9b989acdf1)

Solutions

1. Check the server/plugin configuration and enable the required module or use a supported alternative.

When it happens

Trigger: Thrown at maintainer-client/src/main/java/com/alibaba/nacos/maintainer/client/config/ConfigMaintainerService.java:528 when the library encounters an invalid state.

Common situations: Cloning configs across namespaces with an implementation that does not support it.

AI-assisted analysis of alibaba/nacos@9b989acdf1 (2026-08-14). Data as JSON: /api/errors/cc01ca832ef86cb6. Report an issue: GitHub.