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  1. Hadoop HDFS
  2. HDFS-245

Create symbolic links in HDFS

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.21.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Release Note:
      Hide
      HDFS-245. Adds a symlink implementation to HDFS. This complements the new symlink feature added in HADOOP-6421
      Show
      HDFS-245 . Adds a symlink implementation to HDFS. This complements the new symlink feature added in HADOOP-6421

      Description

      HDFS should support symbolic links. A symbolic link is a special type of file that contains a reference to another file or directory in the form of an absolute or relative path and that affects pathname resolution. Programs which read or write to files named by a symbolic link will behave as if operating directly on the target file. However, archiving utilities can handle symbolic links specially and manipulate them directly.

        Attachments

        1. 4044_20081030spi.java
          6 kB
          Tsz-wo Sze
        2. designdocv1.txt
          7 kB
          Eli Collins
        3. designdocv2.txt
          12 kB
          Eli Collins
        4. designdocv3.txt
          13 kB
          Eli Collins
        5. design-doc-v4.txt
          9 kB
          Eli Collins
        6. HADOOP-4044-strawman.patch
          4 kB
          Doug Cutting
        7. symlink-0.20.0.patch
          155 kB
          weimin zhu
        8. symLink1.patch
          44 kB
          Dhruba Borthakur
        9. symLink1.patch
          5 kB
          Dhruba Borthakur
        10. symLink11.patch
          185 kB
          Dhruba Borthakur
        11. symLink12.patch
          199 kB
          Dhruba Borthakur
        12. symLink13.patch
          200 kB
          Dhruba Borthakur
        13. symLink14.patch
          200 kB
          Dhruba Borthakur
        14. symLink15.txt
          213 kB
          Dhruba Borthakur
        15. symLink15.txt
          213 kB
          Dhruba Borthakur
        16. symlink16-common.patch
          110 kB
          Eli Collins
        17. symlink16-hdfs.patch
          138 kB
          Eli Collins
        18. symlink16-mr.patch
          12 kB
          Eli Collins
        19. symlink17-common.txt
          47 kB
          Dhruba Borthakur
        20. symlink17-hdfs.txt
          71 kB
          Dhruba Borthakur
        21. symlink18-common.txt
          24 kB
          Dhruba Borthakur
        22. symlink19-common.txt
          25 kB
          Dhruba Borthakur
        23. symlink19-common.txt
          24 kB
          Dhruba Borthakur
        24. symlink19-common-delta.patch
          6 kB
          Eli Collins
        25. symlink19-hdfs.txt
          66 kB
          Dhruba Borthakur
        26. symlink19-hdfs-delta.patch
          45 kB
          Eli Collins
        27. symlink20-common.patch
          31 kB
          Eli Collins
        28. symlink20-hdfs.patch
          96 kB
          Eli Collins
        29. symlink21-common.patch
          31 kB
          Eli Collins
        30. symlink21-hdfs.patch
          96 kB
          Eli Collins
        31. symlink22-common.patch
          31 kB
          Eli Collins
        32. symlink22-hdfs.patch
          100 kB
          Eli Collins
        33. symlink23-common.patch
          34 kB
          Eli Collins
        34. symlink23-hdfs.patch
          101 kB
          Eli Collins
        35. symlink24-hdfs.patch
          103 kB
          Eli Collins
        36. symlink-25-hdfs.patch
          107 kB
          Eli Collins
        37. symlink-26-hdfs.patch
          108 kB
          Eli Collins
        38. symlink-26-hdfs.patch
          107 kB
          Eli Collins
        39. symlink27-hdfs.patch
          113 kB
          Eli Collins
        40. symlink28-hdfs.patch
          117 kB
          Eli Collins
        41. symlink29-hdfs.patch
          117 kB
          Eli Collins
        42. symlink29-hdfs.patch
          117 kB
          Eli Collins
        43. symlink30-hdfs.patch
          117 kB
          Eli Collins
        44. symlink31-hdfs.patch
          97 kB
          Eli Collins
        45. symlink33-hdfs.patch
          268 kB
          Eli Collins
        46. symlink35-hdfs.patch
          176 kB
          Eli Collins
        47. symlink36-hdfs.patch
          178 kB
          Eli Collins
        48. symlink37-hdfs.patch
          178 kB
          Eli Collins
        49. symlink38-hdfs.patch
          181 kB
          Eli Collins
        50. symlink39-hdfs.patch
          181 kB
          Eli Collins
        51. symLink4.patch
          157 kB
          Dhruba Borthakur
        52. symlink40-hdfs.patch
          180 kB
          Eli Collins
        53. symlink41-hdfs.patch
          182 kB
          Eli Collins
        54. symLink5.patch
          162 kB
          Dhruba Borthakur
        55. symLink6.patch
          158 kB
          Dhruba Borthakur
        56. symLink8.patch
          155 kB
          Dhruba Borthakur
        57. symLink9.patch
          161 kB
          Dhruba Borthakur

          Issue Links

          depends upon

          New Feature - A new feature of the product, which has yet to be developed. HADOOP-6421 Symbolic links

          • Major - Major loss of function.
          • Resolved
          is depended upon by

          New Feature - A new feature of the product, which has yet to be developed. HDFS-468 libhdfs should expose symlink dfs API

          • Major - Major loss of function.
          • Open

          New Feature - A new feature of the product, which has yet to be developed. HDFS-220 Transparent archival and restore of files from HDFS

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-427 fuse-dfs should support symlinks

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-932 Resolve NN symlinks internally

          • Major - Major loss of function.
          • Open
          is related to

          New Feature - A new feature of the product, which has yet to be developed. HADOOP-6421 Symbolic links

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-2246 Shortcut a local client reads to a Datanodes files directly

          • Major - Major loss of function.
          • Closed

            Activity

              People

              • Assignee:
                eli Eli Collins
                Reporter:
                dhruba Dhruba Borthakur
              • Votes:
                3 Vote for this issue
                Watchers:
                43 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: