Try starting your R session after starting a 'screen' session. Like this:
$> screen
$> R
# do stuff, when taking a break do CTRL-A D to disconnect
# use as normal
See the man page for screen, it is basically a terminal multiplexer
that can gracefully accommodate connection failures. If you get
disconnected, re-connect, and then re-attach the screen process:
$> screen -r
and you should be ok.
Cheers,
Dylan
On 1/31/09, Adam D. I. Kramer <a...@ilovebacon.org> wrote:
> Dear colleagues,
>
> I run R on a few different machines, and view graphs and the like by
> tunnelling X through SSH to my local machine. This is useful for me because
> my local machine can't easily handle some of the data sets I work with.
>
> However, when an ssh connection dies, the tunnelled X session also
> dies, which breaks R's device connection, generating this error:
>
>> Error: X11 fatal IO error: please save work and shut down R
>
> ...that's kinda scary, so I quit(save="yes") and then run R again.
>
> The problem, and maybe I'm just whining here, is that because the
> data sets are large this takes several minutes where I'm basically just
> sitting around. This happens once every other day as the VPN software I'm
> using "times out" after about 24 hours and thus the ssh session dies.
>
> I can't really guess at why a broken X session would corrupt a
> running session of R so severely that it would need to be completely
> restarted. Can anyone explain this to me? Or perhaps (hopefully) someone
> has enough knowledge of the X11 device to be able to tell me that I can
> ignore this message, and just use dev.off() and then X11("localhost:10") to
> open a new working X11 connection?
>
> Cordially,
> Adam Kramer
>
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>
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