Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: 2.0.0-beta-2, 2.0.0
    • Component/s: migration
    • Labels:
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      Description

      HBASE-19165 is about starting a branch-2 over branch-1 dataset. The Master when it comes up, goes to read the 'state' of the region from hbase:meta because this is how region state is kept now by AMv2 only, there is no state in hbase:meta on a fresh start. In hbase1, region state was kept in master memory persisted to zk (rather than hbase:meta) while the region was in transition.

      We need to add to master a self-migration facility. If a region has no state in hbase:meta, then look in zk to see if it RIT. If nothing in RIT, ask the pertinent regionserver if it has the region.

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