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    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Not A Problem
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      If the data file for ROOT or .META. is damaged, a HBase installation is rendered inoperative. Manual recovery through writing a new ROOT by hand is relatively simple (I think) but it's not simple and maybe not even possible to recreate a .META. containing thousands of regions. During one experiment I lost the entire .META. data file due to DFS errors during compaction. This can be avoided by utilizing multiple backing data files for ROOT and .META. synchronized in a manner that avoids total data loss should the filesystem become degraded.

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            • Assignee:
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              Reporter:
              apurtell Andrew Purtell
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