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Posted to dev@phoenix.apache.org by "Geoffrey Jacoby (Jira)" <ji...@apache.org> on 2019/12/16 23:08:00 UTC

[jira] [Created] (PHOENIX-5626) GlobalIndexChecker should subclass BaseScannerRegionObserver

Geoffrey Jacoby created PHOENIX-5626:
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             Summary: GlobalIndexChecker should subclass BaseScannerRegionObserver
                 Key: PHOENIX-5626
                 URL: https://issues.apache.org/jira/browse/PHOENIX-5626
             Project: Phoenix
          Issue Type: Bug
            Reporter: Geoffrey Jacoby
            Assignee: Geoffrey Jacoby


All read-path coprocessors in Phoenix (e.g ScanRO, GroupedAggregateRO and UngroupedAggregateRO) appear to subclass BaseScannerRegionObserver. This provides logic for dealing with out-of-region or split scans, and support for lookback queries in the face of deletes (see PHOENIX-4277)

GlobalIndexChecker, which does index read repair before a subsequent region observer performs its usual logic, does not currently subclass BaseScannerRegionObserver. This seems incorrect to me, but I haven't fully worked through the implications yet. Filing a bug for discussion and possible fix. 

Thanks, [~abhishek.chouhan] for pointing me in the direction of PHOENIX-4277. 



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