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From Jeffrey Janner <Jeffrey.Jan...@PolyDyne.com>
Subject RE: [OT] Using the bin/daemon.sh script on ubuntu.
Date Mon, 05 Aug 2013 14:39:43 GMT
> -----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.
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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