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Posted to dev@hbase.apache.org by "Eshcar Hillel (JIRA)" <ji...@apache.org> on 2015/12/19 22:36:46 UTC

[jira] [Created] (HBASE-15016) StoreServices facility in Region

Eshcar Hillel created HBASE-15016:
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             Summary: StoreServices facility in Region
                 Key: HBASE-15016
                 URL: https://issues.apache.org/jira/browse/HBASE-15016
             Project: HBase
          Issue Type: Sub-task
            Reporter: Eshcar Hillel


The default implementation of a memstore ensures that between two flushes the memstore size increases monotonically. Supporting new memstores that store data in different formats (specifically, compressed), or that allows to eliminate data redundancies in memory (e.g., via compaction), means that the size of the data stored in memory can decrease even between two flushes. This requires memstores to have access to facilities that manipulate region counters and synchronization.
This subtasks introduces a new region interface -- StoreServices, through which store components can access these facilities.




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