{"record":{"id":"6cc7b8113091f668","repo":"apache/beam","slug":"failed-trying-to-process-value-for-key-s","errorCode":null,"errorMessage":"Failed trying to process value for key %s.","messagePattern":"Failed trying to process value for key (.+?)\\.","errorType":"exception","errorClass":"RuntimeException","httpStatus":null,"severity":"error","filePath":"sdks/java/extensions/kafka-factories/src/main/java/org/apache/beam/sdk/extensions/kafka/factories/FileAwareFactoryFn.java","lineNumber":151,"sourceCode":"                try {\n                  String secretId = secretValue.substring(SECRET_VALUE_PREFIX.length());\n                  String processedSecret =\n                      processSecret(originalValue, secretId, getSecretWithCache(secretId));\n\n                  matcher.appendReplacement(sb, Matcher.quoteReplacement(processedSecret));\n                } catch (IllegalArgumentException ia) {\n                  throw new IllegalArgumentException(\"Failed to get secret.\", ia);\n                }\n              } else if (secretFile != null) {\n                throw new UnsupportedOperationException(\"Not yet implemented.\");\n              }\n            }\n            matcher.appendTail(sb);\n            String processedValue = sb.toString();\n            processedConfig.put(key, processedValue);\n          }\n        } catch (IOException ex) {\n          throw new RuntimeException(\"Failed trying to process value for key \" + key + \".\", ex);\n        }\n      }\n    } catch (IOException e) {\n      throw new RuntimeException(\"Failed trying to process extra files.\", e);\n    }\n\n    return createObject(processedConfig);\n  }\n\n  /**\n   * A function to download files from their specified external storage path and copy them to the\n   * provided local filepath. The local filepath is provided by the replacePathWithLocal.\n   *\n   * @param externalFilePath\n   * @param outputFileString\n   * @return\n   * @throws IOException\n   */","sourceCodeStart":133,"sourceCodeEnd":169,"githubUrl":"https://github.com/apache/beam/blob/12126d8942aaf848030c478b4c6a28c6af861c66/sdks/java/extensions/kafka-factories/src/main/java/org/apache/beam/sdk/extensions/kafka/factories/FileAwareFactoryFn.java#L133-L169","documentation":"FileAwareFactoryFn.apply() processes config values that reference external files (e.g. secret/file URLs) by rewriting paths, reading referenced files. Each value rewrite is wrapped in an IOException catch that rethrows as a RuntimeException with this message, chaining the original cause. It means reading or processing the external file for one config key failed.","triggerScenarios":"A config value points to a file (e.g. gs:// or local path) whose backing read throws IOException during apply(); e.g. the resolved file does not exist, is unreadable, or the filesystem staging fails while processing that key's value.","commonSituations":"Kafka bootstrap config with a keystore/truststore path that wasn't staged to the worker; typo in a bucket path; file deleted between config parse and pipeline execution; worker lacks permission on the staged file.","solutions":["Check the chained cause (ex.getCause()) for the real IOException — usually a FileNotFoundException or permission error naming the path","Verify every file-referencing config value points at an existing, readable file accessible from Beam workers","Ensure external files are staged with Beam's --filesToStage or accessible via the filesystem scheme used in the path","Test the path locally by running the same FileAwareFactoryFn processing against the value in a unit test"],"exampleFix":"// before\nconfig.put(\"sasl.ssl.truststore.location\", \"gs://my-bucket/missing.truststore.jks\");\n// after\nconfig.put(\"sasl.ssl.truststore.location\", \"gs://my-bucket/present.truststore.jks\"); // file verified to exist","handlingStrategy":"try-catch","validationCode":"java\nfor (Map.Entry<String,String> e : config.entrySet()) {\n  if (e.getValue() != null && e.getValue().contains(\"://\")) {\n    // ensure the referenced file exists via Beam FileSystems.match\n    FileSystems.match(e.getValue());\n  }\n}","typeGuard":null,"tryCatchPattern":"java\ntry {\n  factoryFn.apply(config);\n} catch (RuntimeException ex) {\n  if (ex.getMessage().startsWith(\"Failed trying to process value for key\")) {\n    log.severe(\"Config key \" + key + \" failed: \" + ex.getCause());\n  }\n}","preventionTips":["Validate all file-referencing config values resolve to readable resources before submitting the pipeline","Always log/report the chained cause, not just the wrapper message","Stage external files explicitly with Beam file staging","Write a unit test running FileAwareFactoryFn against your real config values"],"tags":["java","io","kafka","configuration"],"backgroundTag":"file-read-failed","analyzedSha":"12126d8942aaf848030c478b4c6a28c6af861c66","analyzedAt":"2026-09-13T01:50:10.254Z","contentChangedAt":"2026-09-13T01:50:10.254Z","schemaVersion":2},"datasetVersion":"2026-09-14T16:17:12.679Z"}