Thanks Vitor, So as per recommendation its only efficient when heap size is below 8GB. How about when we have more RAM, does that rest of the RAM can be left for OS to make use?
How about the bloom filter and index samples, are they part of off-heap? Thank you for your response. Regards, Jay On Thu, Apr 11, 2013 at 10:35 PM, Viktor Jevdokimov < viktor.jevdoki...@adform.com> wrote: > 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. >
