{"record":{"id":"cd4a8daa7999828e","repo":"apache/hadoop","slug":"the-path-is-neither-snapshottable-nor-under-a-s","errorCode":null,"errorMessage":"The path {} is neither snapshottable nor under a snapshot root!","messagePattern":"The path (.+?) is neither snapshottable nor under a snapshot root!","errorType":"exception","errorClass":"SnapshotException","httpStatus":null,"severity":"error","filePath":"hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/SnapshotManager.java","lineNumber":394,"sourceCode":"    return captureOpenFiles;\n  }\n\n  @VisibleForTesting\n  int getMaxSnapshotLimit() {\n    return maxSnapshotLimit;\n  }\n  /**\n   * Get the snapshot root directory for the given directory. The given\n   * directory must either be a snapshot root or a descendant of any\n   * snapshot root directories.\n   * @param iip INodesInPath for the directory to get snapshot root.\n   * @return the snapshot root INodeDirectory\n   */\n  public INodeDirectory checkAndGetSnapshottableAncestorDir(\n      final INodesInPath iip) throws IOException {\n    final INodeDirectory dir = getSnapshottableAncestorDir(iip);\n    if (dir == null) {\n      throw new SnapshotException(\"The path \" + iip.getPath()\n          + \" is neither snapshottable nor under a snapshot root!\");\n    }\n    return dir;\n  }\n\n  public INodeDirectory getSnapshottableAncestorDir(final INodesInPath iip)\n      throws IOException {\n    final String path = iip.getPath();\n    final INode inode = iip.getLastINode();\n    final INodeDirectory dir;\n    if (inode != null && inode.isDirectory()) {\n      dir = INodeDirectory.valueOf(inode, path);\n    } else {\n      dir = INodeDirectory.valueOf(iip.getINode(-2), iip.getParentPath());\n    }\n    if (dir.isSnapshottable()) {\n      return dir;\n    }","sourceCodeStart":376,"sourceCodeEnd":412,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/SnapshotManager.java#L376-L412","documentation":"Error \"The path {} is neither snapshottable nor under a snapshot root!\" thrown in apache/hadoop.","triggerScenarios":"A snapshot diff/operation path is neither snapshottable nor under any snapshottable root.","commonSituations":"Running snapshotDiff between arbitrary non-snapshottable directories.","solutions":["Use a snapshottable directory (or a path beneath one) for the snapshot operation; enable snapshots with allowSnapshot if appropriate."],"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":"2026-08-23T01:17:44.959Z"}