[R] sqldf returns Error: database or disk is full

[Ebert,Timothy Aaron]

I would try answering these questions:
1) What is the expected size?
2) Is the current size smaller or larger?
3) Every program running on your computer takes up memory. Given all the other programs currently running, do you have space? 

Maybe someone can help by suggesting a way to get R to confess how much memory it has available given current system resources.


Tim
-----Original Message-----
From: R-help <r-help-bounces using r-project.org> On Behalf Of Bert Gunter
Sent: Monday, June 27, 2022 1:44 PM
To: Ian Worthington <ianworthington using yahoo.com>
Cc: R-help <r-help using r-project.org>
Subject: Re: [R] sqldf returns Error: database or disk is full

[External Email]

You should probably heed the warning messages you received before doing anything further.

Bert

On Mon, Jun 27, 2022, 2:55 PM Ian Worthington via R-help < r-help using r-project.org> wrote:

> I'm using sqldf() to execute a query using a named dbname.  It appears 
> to create an external db but after 30 minutes or so returns:
>
> Error: database or disk is full
> The disk is not full, so have I hit some internal db size limit?  The 
> external db created is about 610MB and doesn't grow, so maybe it's 
> running out  of room for the result set, where ever that is stored?
>
> Code being executed is:
>   sqlCmds <- c(#"create index ixsip on ipTrace100(source)",
>                "create index ixdip on ipTrace100(destination)",
>                #"create index ixspo on ipTrace100(SrcPo)",
>                "create index ixdpo on ipTrace100(DstPo)",
>                #"create index ixno  on ipTrace100(`No.`)",
>                # "explain query plan
>                "select tr1.`No.` InNo,      tr1.Time InTime, tr1.source
> InSource, /*tr1.destination InDest,*/ tr1.SrcPo InSrcPo, tr1.DstPo InDstPo,
>                        min(tr2.`No.`) OutNo, tr2.Time OutTime /*, 
> tr2.source OutSource,*/ /*tr2.destination OutDest,*/ /*tr2.SrcPo 
> OutSrcPo*/ /*, tr2.DstPo OutDstPo */
>                from main.ipTrace100 tr1
>                join main.ipTrace100 tr2
>                on tr1.destination = '10.27.187.1' and
>                   tr1.source = tr2.destination and
>                   tr1.SrcPo = tr2.DstPo and
>                   tr1.`No.` < tr2.`No.`
>                group by tr1.`No.`"
>                )
>   (tempfile <- tempfile())
>   system.time( sqldf(sqlCmds, dbname=tempfile, verbose=TRUE) ) and 
> console log:
>
> |
> |  |
>
> >   system.time( sqldf(sqlCmds, dbname=tempfile, verbose=TRUE) )
> sqldf: library(RSQLite)
> sqldf: m <- dbDriver("SQLite")
> sqldf: connection <- dbConnect(m, dbname =
> "C:\Users\PIWN01~1\AppData\Local\Temp\RtmpSycE1E\file78e464e72860")
> sqldf: initExtension(connection)
> sqldf: dbWriteTable(connection, 'ipTrace100', ipTrace100, row.names =
> FALSE)
> sqldf: dbGetQuery(connection, 'create index ixdip on
> ipTrace100(destination)')
> Warning in result_fetch(res using ptr, n = n) :
>   SQL statements must be issued with dbExecute() or dbSendStatement() 
> instead of dbGetQuery() or dbSendQuery().
> sqldf: dbGetQuery(connection, 'create index ixdpo on 
> ipTrace100(DstPo)') Warning in result_fetch(res using ptr, n = n) :
>   SQL statements must be issued with dbExecute() or dbSendStatement() 
> instead of dbGetQuery() or dbSendQuery().
> sqldf: dbGetQuery(connection, 'select tr1.`No.` InNo,      tr1.Time
> InTime, tr1.source InSource, /*tr1.destination InDest,*/ tr1.SrcPo 
> InSrcPo, tr1.DstPo InDstPo,
>                        min(tr2.`No.`) OutNo, tr2.Time OutTime /*, 
> tr2.source OutSource,*/ /*tr2.destination OutDest,*/ /*tr2.SrcPo 
> OutSrcPo*/ /*, tr2.DstPo OutDstPo */
>                from main.ipTrace100 tr1
>                join main.ipTrace100 tr2
>                on tr1.destination = '10.27.187.1' and
>                   tr1.source = tr2.destination and
>                   tr1.SrcPo = tr2.DstPo and
>                   tr1.`No.` < tr2.`No.`
>                group by tr1.`No.`')
> Error: database or disk is full
> sqldf: dbDisconnect(connection)
> sqldf: file.remove(dbname)
> Timing stopped at: 413.1 1081 1780 |
>
>
> |  |
>
>
>
>
> Best wishes / Mejores deseos /  Meilleurs vœux
>
> Ian ...
>         [[alternative HTML version deleted]]
>
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