Allow inmemory Memstore compactions
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Key: HBASE-5311
URL: https://issues.apache.org/jira/browse/HBASE-5311
Project: HBase
Issue Type: Improvement
Reporter: Lars Hofhansl
Just like we periodically compact the StoreFiles we should also periodically
compact the MemStore.
During these compactions we eliminate deleted cells, expired cells, cells to
removed because of version count, etc, before we even do a memstore flush.
Besides the optimization that we could get from this, it should also allow to
remove the special handling of IVN, Increment, and Append (all of which use
upsert logic to avoid accumulating excessive cells in the Memstore).
Not targeting this.
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