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From Jeffrey Kesselman <>
Subject Re: Recommended OS
Date Wed, 12 Feb 2014 19:32:51 GMT
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've built.

On Wed, Feb 12, 2014 at 1:52 PM, Robert Coli <> wrote:

> 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 "bursting" to cover brief periods of exceptional load.
> There are a significant number of Linux only optimizations in Cassandra.
> Very few people operate production clusters on anything but Linux.
> The most obvious optimization that comes to mind is the use of direct i/o
> to avoid blowing out the page cache under various circumstances.
> My approach towards running Cassandra on anything but Linux would be to
> try to directly compare performance to the same hardware running Linux.
> =Rob

It's always darkest just before you are eaten by a grue.

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