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  1. HBase
  2. HBASE-9440

Pass blocks of KVs from HFile scanner to the StoreFileScanner and up

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Won't Fix
    • None
    • None
    • None
    • None

    Description

      Currently we read KVs from an HFileScanner one-by-one and pass them up the scanner/heap tree. Many time the ranges of KVs retrieved from StoreFileScanner (by StoreScanners) and HFileScanner (by StoreFileScanner) will be non-overlapping. If chunks of KVs do not overlap we can sort entire chunks just by comparing the start/end key of the chunk. Only if chunks are overlapping do we need to sort KV by KV as we do now.

      I have no patch, but I wanted to float this idea.

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          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-16225 Refactor ScanQueryMatcher

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              larsh Lars Hofhansl
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                Created:
                Updated:
                Resolved: