[rrd-users] ERROR: attempting to write beyond end of file

[Tobias Oetiker]

Hi Peter,

glad it helps ... will make a new rrdtool release RSN :-)

cheers
tobi

Today Peter Valdemar Mørch wrote:

> Hi,
>
> This post is about the "ERROR: attempting to write beyond end of file"
> error message described in threads [1] and [2]. ( I wasn't subscribed
> to the list at the time ).
>
> For the record, I just want to present a way to reproduce this if
> needed in future and confirm that r2192 indeed fixed it.
>
> On Jun 28, Tobi wrote in [2] that:
> > only in the sense that I was not able to reproduce this on our
> > systems ... it would be great to figure the cause of this ...
>
> One way to reproduce this is:
> * Install a minimal debian squeeze system from scratch. E.g. use the iso [3].
> * apt-get install rrdtool
> * run the attached reproduce.sh
> * See the attached reproduce.out.txt
>
> Basically:
> rrdtool create created.rrd DS:var1:GAUGE:600:U:U RRA:AVERAGE:0.5:1:25
> rrdtool resize created.rrd 0 GROW 1
> fails, but putting created.rrd through a dump/restore cycle makes it work.
>
> The next day, Jun 29, Tobi commited:
>
> r2192 | oetiker | 2011-06-29 17:18:22 +0200 (Wed, 29 Jun 2011) | 2 lines
> Changed paths:
>    M /branches/1.4/program/src/rrd_format.c
>    M /branches/1.4/program/src/rrd_resize.c
>    M /trunk/program/src/rrd_format.c
>    M /trunk/program/src/rrd_resize.c
>
> I can confirm that /branches/1.4/ part of the fix works when applied
> to rrdtool 1.4.3 on debian squeeze and that a raw checkout of
> svn://svn.oetiker.ch/rrdtool/trunk/program also works.
>
> [1]: "ERROR: attempting to write beyond end of file"
> http://oss.oetiker.ch/rrdtool/forum.en.html#nabble-td5708645
> [2]: "rrd resize error"
> http://oss.oetiker.ch/rrdtool/forum.en.html#nabble-td6522576
> [3]: http://cdimage.debian.org/debian-cd/6.0.2.1/i386/bt-cd/debian-6.0.2.1-i386-netinst.iso.torrent
>
> --
> Peter Valdemar Mørch
> http://www.morch.com
>

-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900