[HBASE-3758] HTable.delete triggers pre/postScannerOpen upcalls of RegionObserver

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.92.0
• Component/s: Coprocessors
• Hadoop Flags: Reviewed
• Assignee: Mingjie Lai
• Reporter: Mingjie Lai
• Created: 08/Apr/11 18:51
• Updated: 20/Nov/15 12:42
• Resolved: 15/Apr/11 23:05

Description

Currently RegionObserver pre/postScannerOpen() upcalls are injected at HRegion.instantiateInternalScanner(). If someone uses scanner methods at HRegion, ScannerOpen upcalls can be triggered unexpectedly. HBase-3583 pulled scannerNext and scannerClose from HRegion to HRegionServer. We also need to pull scannerOpen to HRegionObserver to prevent unexpected triggers.