[ESS] Running R over tramp

[Dirk Eddelbuettel]

On 19 December 2020 at 15:04, Chris Wallace via ESS-help wrote:
| Dear Jeremie,
| 
| short answer:
| - ess version 18.10.3snapshot
| - R version 3.6.1 (2019-07-05) -- "Action of the Toes"
| - local system: Ubuntu 20.04.1 LTS

I use it too, and the R binary I look after for Debian is easily available
via an apt-get'able repo on each CRAN mirror. See the README.html there; many
(many !!) people use this happily.

| - remote system: Scientific Linux release 7.9 (Nitrogen)

If I had to guess, I would maybe suspect issue between ssh (protocol)
versions. To sort that out, try to get hold of a matching distro on the other
side (laptop, Docker, borrow one, ...).

It is ssh that controls the processes. R itself should be fairly unaffected
by how it is called.
 
| long answer (sorry):
| I do not believe this is a problem with ess. It is a long standing
| issue for me that has persisted across multiple versions of emacs, ess,
| R and (local) Ubuntu.  It does not occur when I have run R via tramp on
| other remote systems. I believe it is a problem particular to this
| remote system, and am seeking a workaround.

Yes it is plausible that the ssh versions between Ubuntu and SL are out of
sync.

Dirk
 
| Chris
| 
| 
| 
| On Fri, 2020-12-18 at 22:42 +0100, Jeremie Juste wrote:
| > Hello,
| > 
| > I'm running R over tramp without any issues you described.
| > Could you please specify versions of the ESS package you are using?
| > 
| > 
| > Please, keep it straight to the point and keep in mind that someone
| > is
| > reading your mail trying to help.
| > 
| > Best regards,
| > Jeremie
| > 
| > - ess-version: 18.10.3snapshot [elpa: 20200825.829] 
| > - R version 4.0.3 (2020-10-10) -- "Bunny-Wunnies Freak Out"  
| > - GNU/Linux Debian 10
| > 
| > 
| > On Friday, 18 Dec 2020 at 10:48, Chris Wallace via ESS-help wrote:
| > > Dear ESS-help,
| > > 
| > > it is frankly still magic to me that I can run R over tramp, and
| > > this
| > > is my main mode of working.  When starting a new R session, I open
| > > a .R
| > > file on the remote machine via tramp, and then M-x R. About 20% of
| > > the
| > > time this just works, and I have all the nice ESS help etc.  The
| > > result
| > > of the time, either the R prompt hangs, and I have to C-c C-c out
| > > of
| > > the hang, or the code that is being silently sourced appears at the
| > > prompt (I have pasted an example of this below). After this the
| > > session
| > > still works, but I might not have completion, and help doesn't
| > > work.
| > >  Eg writing ?ls at the prompt gives an error "Error in
| > > .ess.command(.ess.help("ls")) : object 'withVisib' not found".
| > > 
| > > The remote server does have relatively slow IO, and I suspect this
| > > may
| > > be the cause of the issue.
| > > 
| > > My question (finally) is: how can I find out the code that is being
| > > sourced and sent to the remote process, and can I source this code
| > > manually myself to "fix" these cases when it has failed itself?
| > > 
| > > Thanks for a wonderful package,
| > > 
| > > Chris
| > > 
| > > R version 3.6.1 (2019-07-05) -- "Action of the Toes"
| > > Copyright (C) 2019 The R Foundation for Statistical Computing
| > > Platform: x86_64-pc-linux-gnu (64-bit)
| > > 
| > > R is free software and comes with ABSOLUTELY NO WARRANTY.
| > > You are welcome to redistribute it under certain conditions.
| > > Type 'license()' or 'licence()' for distribution details.
| > > 
| > >   Natural language support but running in an English locale
| > > 
| > > R is a collaborative project with many contributors.
| > > Type 'contributors()' for more information and
| > > 'citation()' on how to cite R or R packages in publications.
| > > 
| > > Type 'demo()' for some demos, 'help()' for on-line help, or
| > > 'help.start()' for an HTML browser interface to help.
| > > Type 'q()' to quit R.
| > > 
| > > > Error: unexpected '}' in "    }"
| > > > Error: unexpected '}' in "}"
| > > > > . + > Error: unexpected 'else' in:
| > > "
| > >         else"
| > > > Error: object 'name' not found
| > > > Error: unexpected '}' in "}"
| > > > Error: object '.ess.' not found
| > > > + + > Error: unexpected symbol in:
| > > "        nsenv <- asNamespace(n
| > >     stopifnot"
| > > > + > Error in identical(nsenv, .BaseNamespaceEnv) : object 'nsenv'
| > > > not
| > > found
| > > > Error: object 'spr' not found
| > > > > + > Error: unexpected symbol in:
| > > "    if (enviro
| > >         return"
| > > > Error: unexpected '}' in "    }"
| > > > > Error in essenv[[".__ESSENV__."]] <- TRUE : object 'essenv' not
| > > found
| > > > Error: object 'at' not found
| > > > > . + > Error: unexpected symbol in:
| > > "
| > >     on.exit"
| > > > + + > Error: unexpected '}' in:
| > > "        lockBinding(ns
| > >     }"
| > > > > Error: object 'essenv' not found
| > > > Error: unexpected '}' in "}"
| > > > > . + > Error: unexpected symbol in:
| > > ".ess_devtools_functions <- function() {
| > >   if (!requireNamespace("devtools"
| > > > Error in .ess_mpi_send("error", msg) : 
| > >   could not find function ".ess_mpi_send"
| > > > Error: internal error
| > > > Error: unexpected '}' in "  }"
| > > > > > > > . + > > Error in .ess_keep(funs_exported, is.function) : 
| > >   could not find function ".ess_keep"
| > > > Error in .ess_keep(funs_pkg, is_first_arg, "pkg") : 
| > >   could not find function ".ess_keep"
| > > > Error in sort(names(funs_pkg)) : object 'funs_pkg' not found
| > > > > Error: object 'funs_names' not found
| > > > Error: unexpected '}' in "}"
| > > > Error: unexpected '}' in "}"
| > > > Error in .ess.command(options(STERM = "iESS", str.dendrogram.last
| > > > =
| > > "'",  : 
| > >   object 'withVisib' not found
| > > 
| > > ______________________________________________
| > > ESS-help using r-project.org mailing list
| > > https://stat.ethz.ch/mailman/listinfo/ess-help
| > >
| 
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