ramkrishna.s.vasudevan created HBASE-10447:
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Summary: Memstore flusher scans storefiles also when the scanner
heap gets reset
Key: HBASE-10447
URL: https://issues.apache.org/jira/browse/HBASE-10447
Project: HBase
Issue Type: Bug
Affects Versions: 0.96.1.1, 0.98.0, 0.99.0
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
See the mail thread
http://osdir.com/ml/general/2014-01/msg61294.html
In case of flush we create a memstore flusher which in turn creates a
StoreScanner backed by a Single ton MemstoreScanner.
But this scanner also registers for any updates in the reader in the HStore.
Is this needed?
If this happens then any update on the reader may nullify the current heap and
the entire Scanner Stack is reset, but this time with the other scanners for
all the files that satisfies the last top key. So the flush that happens on
the memstore holds the storefile scanners also in the heap that was recreated
but originally the intention was to create a scanner on the memstore alone.
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