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From Tim Heckman <>
Subject Re: nodetool repair exception
Date Sat, 06 Dec 2014 19:48:54 GMT
On Sat, Dec 6, 2014 at 8:05 AM, Eric Stevens <> wrote:
> The official recommendation is 100k:
> I wonder if there's an advantage to this over unlimited if you're running
> servers which are dedicated to your Cassandra cluster (which you should be
> for anything production).

There is the potential to have monitoring systems, and other small
agents, running on systems in production. I could see this simply as a
stop-gap to prevent Cassandra from being able to starve the system of
free file descriptors. In theory, if there's not a proper watchdog on
your monitors this could prevent an issue from causing an alert.
However, just a potential advantage I could think of.


> On Fri Dec 05 2014 at 2:39:24 PM Robert Coli <> wrote:
>> On Wed, Dec 3, 2014 at 6:37 AM, Rafał Furmański <>
>> wrote:
>>> I see “Too many open files” exception in logs, but I’m sure that my limit
>>> is now 150k.
>>> Should I increase it? What’s the reasonable limit of open files for
>>> cassandra?
>> Why provide any limit? ulimit allows "unlimited"?
>> =Rob

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