apache/shenyu · error · ShenyuAdminException

scale rule is not existed

Error message

scale rule is not existed

What it means

PUT /scale/rule (ScaleRlueController.updateRule) checks scaleRuleMapper.existed(id) before updating; when no scale rule row exists for the DTO's id it throws ShenyuAdminException("scale rule is not existed"). Updates are id-based and never create-or-upsert.

Solutions

1. Confirm the rule id exists (GET the rule list / check the scale_rule table) and send the correct id
2. If the rule is new, use POST (createRule) instead of PUT
3. Refresh the dashboard page to clear stale ids and retry

Example fix

// before
PUT /scale/rule  {"id":"nonexistent-id", ...}
// after
POST /scale/rule {"name":"my-rule", ...}   // create first, then PUT with returned id

ScaleRuleDTO existing = scaleRuleApi.getById(dto.getId());
if (existing == null) {
    scaleRuleApi.createRule(dto);      // create instead of update
} else {
    scaleRuleApi.updateRule(dto);
}

try {
    scaleRuleApi.updateRule(dto);
} catch (ShenyuAdminException e) {
    if ("scale rule is not existed".equals(e.getMessage())) { scaleRuleApi.createRule(dto); }
}

When it happens

Trigger: PUT /scale/rule with a ScaleRuleDTO whose id does not exist in the scale_rule table (stale id, id from another environment, or calling update instead of create for a new rule).

Common situations: Dashboard stale tab holding a rule deleted elsewhere; automation scripts reusing hardcoded ids; confusing create (POST) with update (PUT) semantics.

Understand the failure class

Background: "Not found" and "does not exist" errors: why "Task not found", "No such folder", and "Can't find" fire when a lookup comes back empty — this error's family across 14 libraries.

Related errors

• The namespace(s) does not exist！

AI-assisted analysis of apache/shenyu@567142e072 (2026-09-12). Data as JSON: /api/errors/d09932bdbc2b7a4e. Report an issue: GitHub.

Appendix: source

Thrown at shenyu-admin/src/main/java/org/apache/shenyu/admin/controller/ScaleRlueController.java:130

     *
     * @param scaleRuleDTO scaleRuleDTO
     * @return ShenyuAdminResult
     */
    @PostMapping
    public ShenyuAdminResult createRule(@Valid @RequestBody final ScaleRuleDTO scaleRuleDTO) {
        return ShenyuAdminResult.success(ShenyuResultMessage.CREATE_SUCCESS, scaleRuleService.createOrUpdate(scaleRuleDTO));
    }

    /**
     * update rule.
     *
     * @param scaleRuleDTO scaleRuleDTO
     * @return ShenyuAdminResult
     */
    @PutMapping
    public ShenyuAdminResult updateRule(@Valid @RequestBody final ScaleRuleDTO scaleRuleDTO) {
        if (!scaleRuleMapper.existed(scaleRuleDTO.getId())) {
            throw new ShenyuAdminException("scale rule is not existed");
        }
        return ShenyuAdminResult.success(ShenyuResultMessage.UPDATE_SUCCESS, scaleRuleService.createOrUpdate(scaleRuleDTO));
    }

    /**
     * delete rules.
     *
     * @param ids ids
     * @return ShenyuAdminResult
     */
    @DeleteMapping("/batch")
    public ShenyuAdminResult deleteRules(@RequestBody @NotEmpty final List<@NotBlank String> ids) {
        return ShenyuAdminResult.success(ShenyuResultMessage.DELETE_SUCCESS, scaleRuleService.delete(ids));
    }
}

View on GitHub (pinned to 567142e072)