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Posted to dev@phoenix.apache.org by "Geoffrey Jacoby (Jira)" <ji...@apache.org> on 2019/12/17 22:58:00 UTC
[jira] [Resolved] (PHOENIX-5626) GlobalIndexChecker should subclass
BaseScannerRegionObserver
[ https://issues.apache.org/jira/browse/PHOENIX-5626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Geoffrey Jacoby resolved PHOENIX-5626.
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Resolution: Not A Problem
> GlobalIndexChecker should subclass BaseScannerRegionObserver
> ------------------------------------------------------------
>
> Key: PHOENIX-5626
> URL: https://issues.apache.org/jira/browse/PHOENIX-5626
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.15.0, 5.1.0, 4.14.3
> Reporter: Geoffrey Jacoby
> Assignee: Geoffrey Jacoby
> Priority: Major
>
> 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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