[HBASE-7323] add Cell interface to SeekerState and BufferedEncodedSeeker

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 0.95.2
• Component/s: Compaction, Performance, regionserver, Scanners
• Assignee: Unassigned
• Reporter: Matt Corgan
• Created: 11/Dec/12 07:47
• Updated: 15/Jun/22 20:51
• Resolved: 08/Apr/14 11:46

Description

SeekerState is the staging site for a Cell while it is being assembled by the BufferedEncodedSeeker. When the parent StoreFileScanner calls getCurrentCell() it's guaranteed that the Cell is fully assembled, and we can directly return the SeekerState as a Cell rather than copying it into a KeyValue. A benchmark at the StoreFileScanner level show ~50% faster cells/sec than when copying to KeyValues (ignoring garbage collection).

Issue Links

• relates to: HBASE-7755 Experiment with LAB in BlockEndcoding