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List:       cassandra-dev
Subject:    reclaim after memtable flush
From:       "Tyagi, Preetika" <preetika.tyagi () intel ! com>
Date:       2017-09-21 0:20:14
Message-ID: 4397857C7F0B614083071599C4F2366C0100447731 () ORSMSX105 ! amr ! corp ! intel ! com
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Hi,

I'm trying to understand how Regions are being allocated and deallocated in=
 Memtable. I can see that the same region is being used to allocate more si=
ze until the max region limit is hit.
However, once the max limit is reached, the current region is set to null a=
nd eventually new Region gets allocated.

My question is if it possible for this filled region (which can be set to n=
ull) to have some valid data (from current memtable) which hasn't been flus=
hed yet? How each memtable is mapped to these regions?

Thanks,
Preetika



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