{"record":{"id":"76047a6c15c6d0c9","repo":"apache/hadoop","slug":"unknown-encryption-algorithm-name","errorCode":null,"errorMessage":"Unknown encryption algorithm <name>","messagePattern":"Unknown encryption algorithm <name>","errorType":"exception","errorClass":"IOException","httpStatus":null,"severity":"error","filePath":"hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AEncryptionMethods.java","lineNumber":105,"sourceCode":"    return requiresSecret;\n  }\n\n  /**\n   * Get the encryption mechanism from the value provided.\n   * @param name algorithm name\n   * @return the method\n   * @throws IOException if the algorithm is unknown\n   */\n  public static S3AEncryptionMethods getMethod(String name) throws IOException {\n    if(StringUtils.isBlank(name)) {\n      return NONE;\n    }\n    for (S3AEncryptionMethods v : values()) {\n      if (v.getMethod().equalsIgnoreCase(name)) {\n        return v;\n      }\n    }\n    throw new IOException(UNKNOWN_ALGORITHM + name);\n  }\n\n}\n","sourceCodeStart":87,"sourceCodeEnd":109,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AEncryptionMethods.java#L87-L109","documentation":"Error \"Unknown encryption algorithm <name>\" thrown in apache/hadoop.","triggerScenarios":"Thrown at hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AEncryptionMethods.java:105 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Set fs.s3a.encryption.algorithm to a supported value: CSE-KMS, CSE-CUSTOM, SSE-S3, SSE-KMS, or SSE-C."],"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"}