{"record":{"id":"19c5af5902e27956","repo":"apache/hadoop","slug":"invalid-arguments-found","errorCode":null,"errorMessage":"Invalid Arguments found.","messagePattern":"Invalid Arguments found\\.","errorType":"validation","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/command/Command.java","lineNumber":371,"sourceCode":"    @SuppressWarnings(\"unchecked\")\n    Iterator<Option> iter = cmd.iterator();\n    while (iter.hasNext()) {\n      Option opt = iter.next();\n\n      if (!validArgs.containsKey(opt.getLongOpt())) {\n        String errMessage = String\n            .format(\"%nInvalid argument found for command %s : %s%n\",\n                commandName, opt.getLongOpt());\n        StringBuilder validArguments = new StringBuilder();\n        validArguments.append(String.format(\"Valid arguments are : %n\"));\n        for (Map.Entry<String, String> args : validArgs.entrySet()) {\n          String key = args.getKey();\n          String desc = args.getValue();\n          String s = String.format(\"\\t %s : %s %n\", key, desc);\n          validArguments.append(s);\n        }\n        LOG.error(errMessage + validArguments.toString());\n        throw new IllegalArgumentException(\"Invalid Arguments found.\");\n      }\n    }\n  }\n\n  /**\n   * Gets cluster URL.\n   *\n   * @return - URL\n   */\n  public URI getClusterURI() {\n    return clusterURI;\n  }\n\n  /**\n   * Set cluster URL.\n   *\n   * @param clusterURI - URL\n   */","sourceCodeStart":353,"sourceCodeEnd":389,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/command/Command.java#L353-L389","documentation":"Error \"Invalid Arguments found.\" thrown in apache/hadoop.","triggerScenarios":"DiskBalancer command line parsing when unknown or malformed arguments are supplied.","commonSituations":"See trigger scenarios.","solutions":["Run the diskbalancer command with --help and correct the invalid or missing arguments.","Check for typos in option names and values."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"2add9630210752f88ceb1bb74eb65e37bf41da8e","analyzedAt":"2026-08-22T19:55:07.957Z","schemaVersion":2},"datasetVersion":"2026-08-22T20:17:22.307Z"}