Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-7213

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

    XMLWordPrintableJSON

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

          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:
                ddas Devaraj Das
                Reporter:
                ddas Devaraj Das
              • Votes:
                0 Vote for this issue
                Watchers:
                13 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: