On closer inspection of your specs, you might want to try upgrading your Twisted install. I just checked and am pretty sure that the twistd version is sync'd with the Twisted version. NWS requires Twisted >= 2.1.

Pat

Peter Tait wrote:
Hi Pat,
thank you for the response.
Yes I am running R on the same machine as the NWS server. I was doing this on my Windows 2003 server with out any problem.
My Linux server has 4 cores and I would like R to take advantage of them.
Thank you for your help.
Cheers
Peter

----Original Message Follows----
From: Patrick Shields <[EMAIL PROTECTED]>
To: Peter Tait <[EMAIL PROTECTED]>
CC: r-help@r-project.org
Subject: Re: [R] problem with caretNWS on linux
Date: Thu, 08 May 2008 16:42:31 -0400

Peter,
Are you running the NWS server on the same machine as the R session (ie the machine running 'twistd -y /etc/nws.tac')?

Pat

Peter Tait wrote:
Hi,
I am using caretNWS on a RHEL x86_64 system and I am getting an error message that is nearly identical to the one occuring in http://www.r-project.org/nosvn/R.check/r-release-macosx-ix86/caretNWS-00check.txt


Error in socketConnection(serverHost, port = port, open = "a+b", blocking = TRUE) :
 unable to open connection
Calls: system.time ... .local -> tryCatch -> tryCatchList -> socketConnection
In addition: Warning message:
In socketConnection(serverHost, port = port, open = "a+b", blocking = TRUE) :
 penguin:8765 cannot be opened

The software versions I am using are the following:
Python 2.3.4
twistd (the Twisted daemon) 1.3.0rc1
nwsserver-1.5.2
R version 2.6.2 (2008-02-08)
nws 1.6.3

Thank you for the help.
Peter

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--
Pat Shields
REvolution Computing
(203) 777-7442 x250
[EMAIL PROTECTED]



--
Pat Shields
REvolution Computing
(203) 777-7442 x250
[EMAIL PROTECTED]

______________________________________________
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and provide commented, minimal, self-contained, reproducible code.

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