[HBASE-16962] Add readPoint to preCompactScannerOpen() and preFlushScannerOpen() API

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.0, 2.0.0
• Hadoop Flags: Reviewed

Release Note

The following RegionObserver methods are deprecated

InternalScanner preFlushScannerOpen(final ObserverContext<RegionCoprocessorEnvironment> c,
    final Store store, final KeyValueScanner memstoreScanner, final InternalScanner s)
    throws IOException;

InternalScanner preCompactScannerOpen(final ObserverContext<RegionCoprocessorEnvironment> c,
    final Store store, List<? extends KeyValueScanner> scanners, final ScanType scanType,
    final long earliestPutTs, final InternalScanner s, CompactionRequest request)

Instead, use the following methods:

InternalScanner preFlushScannerOpen(final ObserverContext<RegionCoprocessorEnvironment> c,
    final Store store, final KeyValueScanner memstoreScanner, final InternalScanner s,
    final long readPoint) throws IOException;

InternalScanner preCompactScannerOpen(final ObserverContext<RegionCoprocessorEnvironment> c,
    final Store store, List<? extends KeyValueScanner> scanners, final ScanType scanType,
    final long earliestPutTs, final InternalScanner s, final CompactionRequest request,
    final long readPoint) throws IOException

• Assignee: Thiruvel Thirumoolan
• Reporter: Thiruvel Thirumoolan
• Created: 28/Oct/16 21:45
• Updated: 16/Nov/16 01:08
• Resolved: 11/Nov/16 05:41

Description

Similar to HBASE-15759, I would like to add readPoint to the preCompactScannerOpen() API.

I have a CP where I create a StoreScanner() as part of the preCompactScannerOpen() API. I need the readpoint which was obtained in Compactor.compact() method to be consistent.

Issue Links

• relates to: HBASE-17106 Wrap arguments to Coprocessor method invocations in Context objects
• links to: Review Board (master)
• links to: Review board link (branch-1)