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  1. Hadoop HDFS
  2. HDFS-2802

Support for RW/RO snapshots in HDFS

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 2.1.0-beta
    • namenode
    • None
    • Incompatible change

    Description

      Snapshots are point in time images of parts of the filesystem or the entire filesystem. Snapshots can be a read-only or a read-write point in time copy of the filesystem. There are several use cases for snapshots in HDFS. I will post a detailed write-up soon with with more information.

      Attachments

        1. HDFS-2802.branch-2.0510.patch
          1.07 MB
          Jing Zhao
        2. h2802_20130509.patch
          1.07 MB
          Tsz-wo Sze
        3. h2802_20130508.patch
          1.06 MB
          Tsz-wo Sze
        4. Snapshots20120429.pdf
          386 kB
          Suresh Srinivas
        5. h2802_20130430b.patch
          1.05 MB
          Tsz-wo Sze
        6. h2802_20130430.patch
          1.05 MB
          Tsz-wo Sze
        7. h2802_20130426.patch
          1.03 MB
          Tsz-wo Sze
        8. h2802_20130425.patch
          1.03 MB
          Tsz-wo Sze
        9. h2802_20130423.patch
          1015 kB
          Tsz-wo Sze
        10. h2802_20130422.patch
          1015 kB
          Tsz-wo Sze
        11. h2802_20130417.patch
          988 kB
          Tsz-wo Sze
        12. snapshot-testplan.pdf
          51 kB
          Jing Zhao
        13. 2802.diff
          867 kB
          Suresh Srinivas
        14. 2802.patch
          819 kB
          Tsz-wo Sze
        15. 2802.patch
          818 kB
          Suresh Srinivas
        16. Snapshots.pdf
          76 kB
          Suresh Srinivas
        17. HDFS-2802-meeting-minutes-121101.txt
          5 kB
          David S. Wang
        18. HDFS-2802.20121101.patch
          137 kB
          Suresh Srinivas
        19. snapshot-design.tex
          25 kB
          Aaron Myers
        20. snapshot-design.pdf
          189 kB
          Aaron Myers
        21. Snapshots20121030.pdf
          289 kB
          Suresh Srinivas
        22. HDFSSnapshotsDesign.pdf
          73 kB
          Aaron Myers
        23. Snapshots20121018.pdf
          372 kB
          Tsz-wo Sze
        24. snap.patch
          122 kB
          Hari Mankude
        25. snapshot-one-pager.pdf
          99 kB
          Hari Mankude

        Issue Links

          duplicates

          New Feature - A new feature of the product, which has yet to be developed. HDFS-233 Support for snapshots

          • Major - Major loss of function.
          • Resolved
          incorporates

          Sub-task - The sub-task of the issue HDFS-4578 Restrict snapshot IDs to 24-bits wide

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-4107 Add utility methods to cast INode to INodeFile and INodeFileUnderConstruction

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HDFS-4112 A few improvements on INodeDirectory

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HDFS-4209 Clean up the addNode/addChild/addChildNoQuotaCheck methods in FSDirectory

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HDFS-4826 TestNestedSnapshots times out due to repeated slow edit log flushes when running on virtualized disk

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. HDFS-4213 When the client calls hsync, allows the client to update the file length in the NameNode

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. HDFS-4124 Refactor INodeDirectory#getExistingPathINodes() to enable returning more than INode array

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4037 Rename the getReplication() method in BlockCollection to getBlockReplication()

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4206 Change the fields in INode and its subclasses to private

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4215 Improvements on INode and image loading

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4151 Passing INodesInPath instead of INode[] in FSDirectory

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4152 Add a new class for the parameter in INode.collectSubtreeBlocksAndClear(..)

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4074 Remove empty constructors for INode

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Closed

          Test - A new unit, integration or system test. HDFS-4129 Add utility methods to dump NameNode in memory tree for testing

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          relates to

          New Feature - A new feature of the product, which has yet to be developed. HBASE-6055 Offline Snapshots in HBase 0.96

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. HBASE-50 Snapshot of table

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            People

              szetszwo Tsz-wo Sze
              harip Hari Mankude
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              78 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: