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Posted to dev@hbase.apache.org by "Anastasia Braginsky (JIRA)" <ji...@apache.org> on 2017/10/31 12:52:00 UTC

[jira] [Created] (HBASE-19133) Transfer big cells or upserted/appended cells into MSLAB upon flattening to CellChunkMap

Anastasia Braginsky created HBASE-19133:
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             Summary: Transfer big cells or upserted/appended cells into MSLAB upon flattening to CellChunkMap
                 Key: HBASE-19133
                 URL: https://issues.apache.org/jira/browse/HBASE-19133
             Project: HBase
          Issue Type: Sub-task
            Reporter: Anastasia Braginsky


CellChunkMap Segment index requires all cell data to be written in the MSLAB Chunks. Eventhough MSLAB is enabled, cells bigger than chunk size or upserted/incremented/appended cells are still allocated on the JVM stack. If such cells are found in the process of flattening into CellChunkMap (in-memory-flush) they need to be copied into MSLAB.



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