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From Viktor Jevdokimov <>
Subject RE: Does Memtable resides in Heap?
Date Fri, 12 Apr 2013 05:35:25 GMT
Memtables resides in heap, write rate impacts GC, more writes - more frequent and longer ParNew
GC pauses.

From: Jay Svc []
Sent: Friday, April 12, 2013 01:03
Subject: Does Memtable resides in Heap?

Hi Team,

I have got this 8GB of RAM out of that 4GB allocated to Java Heap. My question is the size
of Memtable does it contribute to heap size? or they are part of off-heap?

Does bigger Memtable would have impact on GC and overall memory management?

I am using DSE 3.0 / Cassandra 1.1.9.


Best regards / Pagarbiai

Viktor Jevdokimov
Senior Developer

Phone: +370 5 212 3063
Fax: +370 5 261 0453

J. Jasinskio 16C,
LT-01112 Vilnius,

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