Re: Recommended OS

2014-02-12 Thread Jonathan Haddad
I just would advise against it because it's going to be difficult to narrow down what's causing problems. For instance, if you have "Node A" which is performing GC, it will affect query times on "Node B" which is trying to satisfy a quorum read. "Node B" might actually have very low load, and it

Re: Recommended OS

2014-02-12 Thread Robert Coli
On Wed, Feb 12, 2014 at 1:25 PM, Ben Bromhead wrote: > If you are super keen on running on something different from linux in > production (after all the warnings), run most of your cluster on linux, > then run a single node or a separate DC with SmartOS, Solaris, BeOS, OS/2, > Minix, Windows 3.1

Re: Recommended OS

2014-02-12 Thread Ben Bromhead
We are currently trialling SmartOS with Cassandra and have seen some pretty good results (and the mmap stuff "appears" to work). As Rob said, if this is production cluster, run with linux… there will be far less pain. If you are super keen on running on something different from linux in product

Re: Recommended OS

2014-02-12 Thread Jeffrey Kesselman
Its quite possible its well tricked out for Linux. My major issue with Linux has been that its TCP/IP stack is nowhere near as scalable as Solaris' for massive numbers of simultaneous connections. But thats probably less of an issue with a Cassandra node then it has been with the game servers I'v

Re: Recommended OS

2014-02-12 Thread Robert Coli
On Wed, Feb 12, 2014 at 8:55 AM, Jeffrey Kesselman wrote: > I haven't run Cassandra in production myself, but for other high load Java > based servers I've had really good scaling success with OpenSolaris. In > particular I've used Joyent's "SmartOS" which has the additional advantage > of "burs

Re: Recommended OS

2014-02-12 Thread Jeffrey Kesselman
t; > > No especial resource tuning save turning off SELinux and the usual > (disabling swap, separate disk for commit logs, data and the OS). > > > > *From:* Keith Wright [mailto:kwri...@nanigans.com] > *Sent:* Monday, February 10, 2014 4:35 PM > > *To:* user@cassandra

RE: Recommended OS

2014-02-11 Thread Brust, Corwin [Hollander]
Keith Wright [mailto:kwri...@nanigans.com] Sent: Monday, February 10, 2014 4:35 PM To: user@cassandra.apache.org Cc: Don Jackson; Dave Carroll Subject: RE: Recommended OS Is this your first cluster? Have you run older versions of Cassandra? Any specific resource tuning? Thanks all. We are unab

RE: Recommended OS

2014-02-10 Thread Keith Wright
nt: Monday, February 10, 2014 2:09 PM To: user@cassandra.apache.org Cc: Don Jackson; Dave Carroll Subject: Re: Recommended OS We are running on CentOS 6.4 but an upgrade to 6.5 caused packets to backup on the net queue causing HUGE load spikes and cluster meltdown. Ultimately we reverted. Have o

RE: Recommended OS

2014-02-10 Thread Brust, Corwin [Hollander]
onday, February 10, 2014 2:09 PM To: user@cassandra.apache.org Cc: Don Jackson; Dave Carroll Subject: Re: Recommended OS We are running on CentOS 6.4 but an upgrade to 6.5 caused packets to backup on the net queue causing HUGE load spikes and cluster meltdown. Ultimately we reverted. Have others

Re: Recommended OS

2014-02-10 Thread Keith Wright
: Don Jackson mailto:djack...@nanigans.com>>, Dave Carroll mailto:dcarr...@nanigans.com>> Subject: Re: Recommended OS What issues are you running into with CentOS 6.4/5? I’m running 1.2.8 on CentOS 6.3 and Java 1.7.0-25, and about to test with 1.7.latest. -- Josh Sholes Fr

Re: Recommended OS

2014-02-10 Thread Sholes, Joshua
What issues are you running into with CentOS 6.4/5? I’m running 1.2.8 on CentOS 6.3 and Java 1.7.0-25, and about to test with 1.7.latest. -- Josh Sholes From: Keith Wright mailto:kwri...@nanigans.com>> Reply-To: "user@cassandra.apache.org" mailto:user@cassandra