Allan Yang created HBASE-21035:

             Summary: Meta Table should be able to online even if all 
procedures are lost
                 Key: HBASE-21035
             Project: HBase
          Issue Type: Sub-task
    Affects Versions: 2.1.0
            Reporter: Allan Yang
            Assignee: Allan Yang

After HBASE-20708, we changed the way we init after master starts. It will only 
check WAL dirs and compare to Zookeeper RS nodes to decide which server need to 
expire. For servers which's dir is ending with 'SPLITTING', we assure that 
there will be a SCP for it.

But, if the server with the meta region crashed before master restarts, and if 
all the procedure wals are lost (due to bug, or deleted manually, whatever), 
the new restarted master will be stuck when initing. Since no one will bring 
meta region online.

Although it is a anomaly case, but I think no matter what happens, we need to 
online meta region. Otherwise, we are sitting ducks, noting can be done.

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