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  1. HBase
  2. HBASE-3999

book.xml - Compression Upgrade Concerns

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      Spawned from comment on HBASE-3998

      (snip)
      Jean-Daniel Cryans added a comment - 16/Jun/11 18:00
      We should also add something about what happens when altering a family that was uncompressed to LZO or GZ, and vice versa. This just came up in the IRC channel: if I enable compression on a column family that was not previously compressed, what is needed to get the existing data in that column family compressed ?
      (snip)

      I'd suggest putting a new section under Appendix/Compression called something like "Upgrade Considerations" because this could either be compression algorithm upgrades (LZO->new version of LZO), or schema changes (as JD pointed out) where you are changing compression algorithms.

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            • Assignee:
              jdcryans Jean-Daniel Cryans
              Reporter:
              dmeil Doug Meil
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