Re: if the heap size exceeds 32GB..

2018-02-13 Thread Thakrar, Jayesh
, 0x7ff26000, 0x7ff26000) region size 32768K, 0 young (0K), 0 survivors (0K) Metaspace used 34162K, capacity 35315K, committed 35328K, reserved 36864K } [Times: user=0.67 sys=0.00, real=0.66 secs] From: Jeff Jirsa Date: Tuesday, February 13, 2018 at 11:40 AM To: cassandr

Re: if the heap size exceeds 32GB..

2018-02-13 Thread Jeff Jirsa
> FYI, we have configured our heap for 84 GB. >> >> However there's more tuning that we have done beyond just the heap, so >> make sure you are aware of what else needs to be done. >> >> >> >> *From: *"Steinmaurer, Thomas" >> *Date

Re: if the heap size exceeds 32GB..

2018-02-13 Thread James Rothering
ake sure you are aware of what else needs to be done. > > > > *From: *"Steinmaurer, Thomas" > *Date: *Tuesday, February 13, 2018 at 1:49 AM > *To: *"user@cassandra.apache.org" > *Subject: *RE: if the heap size exceeds 32GB.. > > > > Stick with

Re: if the heap size exceeds 32GB..

2018-02-13 Thread Thakrar, Jayesh
just the heap, so make sure you are aware of what else needs to be done. From: "Steinmaurer, Thomas" Date: Tuesday, February 13, 2018 at 1:49 AM To: "user@cassandra.apache.org" Subject: RE: if the heap size exceeds 32GB.. Stick with 31G in your case. Another articl

RE: if the heap size exceeds 32GB..

2018-02-12 Thread Steinmaurer, Thomas
Stick with 31G in your case. Another article on compressed Oops: https://blog.codecentric.de/en/2014/02/35gb-heap-less-32gb-java-jvm-memory-oddities/ Thomas From: Eunsu Kim [mailto:eunsu.bil...@gmail.com] Sent: Dienstag, 13. Februar 2018 08:09 To: user@cassandra.apache.org Subject: if the heap s

Re: if the heap size exceeds 32GB..

2018-02-12 Thread Ben Wood
Here is a useful guide on tuning Cassandra heap https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsTuneJVM.html#opsTuneJVM__tuning-the-java-heap . TL;DR You wouldn't want to allocate more than 1/2 of physical memory to heap so you wouldn't exceed 32 GB anyway. On Mon, Feb 12, 20