Memtables resides in heap, write rate impacts GC, more writes - more frequent and longer ParNew GC pauses.
From: Jay Svc [mailto:jaytechg...@gmail.com] Sent: Friday, April 12, 2013 01:03 To: user@cassandra.apache.org 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. Thanks, Jay Best regards / Pagarbiai Viktor Jevdokimov Senior Developer Email: viktor.jevdoki...@adform.com Phone: +370 5 212 3063 Fax: +370 5 261 0453 J. Jasinskio 16C, LT-01112 Vilnius, Lithuania Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies.