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  1. HBase
  2. HBASE-7213

Have HLog files for .META. and -ROOT- edits only

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.95.0
    • Component/s: master, regionserver
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Release Note:
      The regionserver carrying .META. / -ROOT- region will now write two WALs; the usual one w/ all edits and then a special one with a .meta. suffix into which all edits for .META. / -ROOT- region go. These files will be recovered first on server crash.

      Description

      Over on HBASE-6774, there is a discussion on separating out the edits for .META. regions from the other regions' edits w.r.t where the edits are written. This jira is to track an implementation of that.

        Attachments

        1. 7213-addendum.patch
          1 kB
          chunhui shen
        2. 7213-2.16.patch
          48 kB
          Devaraj Das
        3. 7213-15.patch
          45 kB
          Ted Yu
        4. TEST-org.apache.hadoop.hbase.client.TestMultiParallel.xml
          8.39 MB
          Ted Yu
        5. 7213-2.14.patch
          48 kB
          Ted Yu
        6. 7213-2.14.patch
          48 kB
          Devaraj Das
        7. 7213-2.12.patch
          50 kB
          Devaraj Das
        8. 7213v13.txt
          45 kB
          stack
        9. 7213-2.11.patch
          47 kB
          Devaraj Das
        10. 7213-2.10.patch
          46 kB
          Devaraj Das
        11. 7213-2.9.patch
          45 kB
          Devaraj Das
        12. 7213-2.8.patch
          44 kB
          Devaraj Das
        13. 7213-2.6.patch
          44 kB
          Devaraj Das
        14. 7213-2.4.patch
          43 kB
          Devaraj Das
        15. 7213-in-progress.2.2.patch
          36 kB
          Devaraj Das
        16. 7213-in-progress.2.patch
          35 kB
          Devaraj Das
        17. 7213-in-progress.patch
          17 kB
          Devaraj Das

          Issue Links

          is required by

          Umbrella - An overarching type made of sub-tasks HBASE-5843 Improve HBase MTTR - Mean Time To Recover

          • Major - Major loss of function.
          • Closed
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-6774 Immediate assignment of regions that don't have entries in HLog

          • Major - Major loss of function.
          • Open

            Activity

              People

              • Assignee:
                devaraj Devaraj Das
                Reporter:
                devaraj Devaraj Das
              • Votes:
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                Watchers:
                13 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: