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  1. 1. 查看ORC文件的元数据

Central Repository: org/apache/orc/orc-tools/1.6.14 (maven.org)

查看ORC文件的元数据

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hive --orcfiledump <path_to_file>

./hive --service orcfiledump --help
usage ./hive orcfiledump [-h] [-j] [-p] [-t] [-d] [-r <col_ids>] [--recover] [--skip-dump] [--backup-path <new-path>] <path_to_orc_file_or_directory>

  --json (-j)                 Print metadata in JSON format
  --pretty (-p)               Pretty print json metadata output
  --timezone (-t)             Print writer's time zone
  --data (-d)                 Should the data be printed
  --rowindex (-r) <col_ids> Comma separated list of column ids for which row index should be printed
  --recover                   Recover corrupted orc files generated by streaming
  --skip-dump                 Used along with --recover to directly recover files without dumping
  --backup-path <new_path>  Specify a backup path to store the corrupted files (default: /tmp)
  --help (-h)                 Print help message



java -jar orc-tools-X.Y.Z-uber.jar meta <path-to-local-orc-file>