Allan Yang created HBASE-20878:

             Summary: Data loss if merging regions while ServerCrashProcedure 
                 Key: HBASE-20878
             Project: HBase
          Issue Type: Bug
          Components: amv2
    Affects Versions: 2.0.1, 3.0.0, 2.1.0
            Reporter: Allan Yang
            Assignee: Allan Yang

In MergeTableRegionsProcedure, we close the regions to merge using 
UnassignProcedure. But, if the RS these regions on is crashed, a 
ServerCrashProcedure will execute at the same time. UnassignProcedures will be 
blocks until all logs are split. But since these regions are closed for 
merging, the regions won't open again, the recovered.edit in the region dir 
won't be replay, thus, data will loss.
I provided a test to repo this case. I seriously doubt Split region procedure 
also has this kind of problem. I will check later

This message was sent by Atlassian JIRA

Reply via email to