{"record":{"id":"a03116bfa926ba5a","repo":"apache/pulsar","slug":"error-caching-authentication-data-for-s-s-s","errorCode":null,"errorMessage":"Error caching authentication data for %s %s:- %s","messagePattern":"Error caching authentication data for (.+?) (.+?):- (.+?)","errorType":"http","errorClass":"RestException","httpStatus":500,"severity":"error","filePath":"pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/rest/api/FunctionsImpl.java","lineNumber":226,"sourceCode":"                        try {\n                            Optional<FunctionAuthData> functionAuthData = functionAuthProvider\n                                    .cacheAuthData(finalFunctionDetails,\n                                            authParams.getClientAuthenticationDataSource());\n\n                            functionAuthData.ifPresent(authData ->\n                                    functionMetaDataObj.setFunctionAuthSpec()\n                                            .setData(authData.getData()));\n                        } catch (Exception e) {\n                            log.error().attr(\"componentType\", ComponentTypeUtils.toString(componentType))\n\n                                    .attr(\"tenant\", tenant).attr(\"namespace\", namespace)\n\n                                    .attr(\"componentName\", functionName).exception(e)\n\n                                    .log(\"Error caching authentication data for / /\");\n\n\n                            throw new RestException(Response.Status.INTERNAL_SERVER_ERROR,\n                                    String.format(\"Error caching authentication data for %s %s:- %s\",\n                                            ComponentTypeUtils.toString(componentType), functionName, e.getMessage()));\n                        }\n                    }\n                });\n            }\n\n            PackageLocationMetaData packageLocationMetaData;\n            try {\n                packageLocationMetaData = getFunctionPackageLocation(functionMetaDataObj,\n                        functionPkgUrl, fileDetail, componentPackageFile);\n            } catch (Exception e) {\n                log.error().attr(\"componentType\", ComponentTypeUtils.toString(componentType)).attr(\"tenant\", tenant)\n\n                        .attr(\"namespace\", namespace).attr(\"componentName\", functionName).exception(e)\n\n                        .log(\"Failed process /{/ package\");\n                throw new RestException(Response.Status.INTERNAL_SERVER_ERROR, e.getMessage());","sourceCodeStart":208,"sourceCodeEnd":244,"githubUrl":"https://github.com/apache/pulsar/blob/820761864ed8e2a7d2e52dd9763ad2ae117c1395/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/rest/api/FunctionsImpl.java#L208-L244","documentation":"Raised by FunctionsImpl.registerFunction inside the asynchronous auth-data caching step. After admission succeeds, the worker tries to cache authentication data (e.g. secrets/credentials for the function); if that callback throws, the client receives an HTTP 500 (INTERNAL_SERVER_ERROR) RestException. The function may have been admitted but its auth data could not be cached, leaving registration incomplete.","triggerScenarios":"registerFunction (or registerFunction with updateOptions.isUpdateAuthData() equivalents) when the auth cache write throws — e.g. misconfigured AuthenticationProvider, failure serializing auth params, or underlying ZooKeeper/metadata-store error while persisting the cached auth data for the component.","commonSituations":"Worker configured with an auth provider the function config doesn't match; metadata-store connectivity blips during registration; secrets injection misconfiguration (invalid secret provider configs) surfacing as a cache failure; upgrades where the auth data format changed.","solutions":["Check worker logs for 'Error caching authentication data' with the full stack trace to find the underlying cause.","Verify the worker's authenticationProvider and secret provider configuration in functions_worker.yml is correct and reachable.","If it was a transient metadata-store failure, retry the registration.","If auth data is not needed, resubmit without update-auth-data / without auth secrets configured.","Ensure the metadata store (ZooKeeper) is healthy and the worker has write access to the function auth-data path."],"exampleFix":"// before\n// worker with misconfigured provider\nauthenticationEnabled=true\nauthenticationProvider=my.company.BrokenAuthProvider\n// after\n# functions_worker.yml\nauthenticationEnabled=true\nauthenticationProvider=org.apache.pulsar.broker.authentication.AuthenticationProviderToken\ntokenAuthProvider=...valid configuration...","handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"try {\n    admin.functions().createFunction(cfg, uploadConfig);\n} catch (PulsarAdminException e) {\n    if (e.getStatusCode() == 500 && e.getMessage().startsWith(\"Error caching authentication data\")) {\n        // metadata-store/auth provider issue; check worker health and retry once\n        retryAfterHealthCheck(e);\n    } else { throw e; }\n}","preventionTips":["Keep worker auth provider and secret provider configuration valid and tested.","Monitor metadata store (ZooKeeper) health before bulk function deployments.","Avoid embedding unnecessary auth data in function configs.","After upgrades, verify the auth-data format expected by the worker."],"tags":["rest-api","pulsar-functions","authentication","http-500"],"backgroundTag":"auth-data-cache-failure","analyzedSha":"820761864ed8e2a7d2e52dd9763ad2ae117c1395","analyzedAt":"2026-09-06T00:14:20.138Z","contentChangedAt":"2026-09-06T00:14:20.138Z","schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}