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Date: Tue, 6 Aug 2013 20:28:20 +1000
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Subject: RE: [OT] Using the bin/daemon.sh script on ubuntu.
From: Igor Cicimov <icicimov@gmail.com>
To: Tomcat Users List <users@tomcat.apache.org>
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On 06/08/2013 12:40 AM, "Jeffrey Janner" <Jeffrey.Janner@polydyne.com>
wrote:
>
> > -----Original Message-----
> > From: Christopher Schultz [mailto:chris@christopherschultz.net]
> > Sent: Friday, August 02, 2013 10:30 PM
> > To: Tomcat Users List
> > Subject: Re: [OT] Using the bin/daemon.sh script on ubuntu.
> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA256
> >
> > Christian
> >
> > On 8/1/13 11:55 AM, Christian Schneider wrote:
> > > On our (AWS) installation we have limited space on /opt, therefore we
> > > attached an EBS volume  to /var/, - otherwise we would get problems
> > > with the log files. Now it can grow above some GB.
> >
> > Have you thought about using /mnt/ephemeral[0-9]?
> >
> > Our instances have ~1TiB in combined ephemeral storage available per
> > instance. I'm sure it depends upon the instance type, though. Remember
> > that terminating the instance loses the ephemeral data.. that's what
> > makes it ... ephemeral. Just remember to copy what you need back to an
> > EBS-backed storage volume before you terminate.
> >
> > - -chris
>
> Chris,
> If I remember my empirical testing of the AWS ephemeral storage system,
you actually lose data on shutdown, not termination.

Not true, the ephemeral data is only lost on instance termination.

> On my Linux boxes, I use the ephemeral storage for swap space because of
that issue, and really nothing else, though /tmp is a second possibility.
 The big thing about using it, for anything, is you have to code a special
startup script to format it at every boot, as it comes back as raw disk.
 Figuring out how to do that for swap was fun, but it's great now (I've got
loads of swap space that I'll probably never ever use.)
> Jeff
>

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