Re: [rrd-users] rrdtutorial not working

Hello Tobias,

I read that there can be a problem when using mmap/munmap on NFS.
On http://nfs.sourceforge.net/ there is a part over mmap and NFS. According
to the msync man page you should use msync before a munmap.

I have add 2 msync function call in rrd_update.c and it looks to help.

#ifdef HAVE_MMAP
msync(rrd_mmaped_file, rrd_filesize,MS_SYNC);
munmap(rrd_mmaped_file, rrd_filesize);
#endif

Is there a reason that you don't use a msync?

best regards,
Tjerk



-----Tobias Oetiker <tobi@oetiker.ch> wrote: -----

>To:=A0Tjerk.Kusters@imtech.nl
>From:=A0Tobias=A0Oetiker=A0<tobi@oetiker.ch>
>Date:=A007-09-2007=A011:42
>cc:=A0rrd-users@lists.oetiker.ch
>Subject:=A0Re:=A0[rrd-users]=A0rrdtutorial=A0not=A0working
>
>Hi=A0Tjerk,
>
>my=A0guess=A0is=A0that=A0the=A0'time'=A0on=A0your =A0vmware=A0host=A0is=A0n=
ot=A0correct=A0...
>
>cheers
>tobi
>
>Today=A0Tjerk.Kusters@imtech.nl=A0wrote:
>
>>
>>
>>
>>
>>
>>=A0Hello,
>>
>>=A0I=A0am=A0storing=A0the=A0rrd=A0files=A0on=A0a =A0nfs=A0mounted=A0filess=
ytem,=A0which=A0is=A0the=A0cause

>>=A0of=A0the=A0problems.
>>=A0Is=A0there=A0a=A0solution=A0to=A0this=A0probl em?
>>
>>=A0Regards,
>>=A0Tjerk
>>
>>=A0-----rrd-users-bounces@lists.oetiker.ch=A0wrote:=A0-----
>>
>>=A0>To:=C2=A0rrd-users@lists.oetiker.ch
>>=A0>From:=C2=A0Tjerk.Kusters@imtech.nl
>>=A0>Sent=C2=A0by:=C2=A0rrd-users-bounces@lists.oetiker.ch
>>=A0>Date:=C2=A005-09-2007=C2=A016:24
>>=A0>Subject:=C2=A0[rrd-users]=C2=A0=C2=A0rrdtutorial=C2=A0not=C2=A0working
>>=A0>
>>=A0>
>>=A0>
>>=A0>
>>=A0>
>>=A0>
>>=A0>Hello,
>>=A0>
>>
>>I=C2=A0have=C2=A0a=C2=A0problem=C2=A0to=C2=A0get =C2=A0the=C2=A0example=C2=
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>>=A0>
>>=A0>Fedora:=C2=A0RRDtool=C2=A01.2.23=C2=A0(rrdto ol-1.2.23-6.fc6)
>>=A0>Windows:=C2=A0RRDtool=C2=A01.2.23=C2=A0(bina ry=C2=A0from=C2=A0website)
>>=A0>
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>>=A0>
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>>=A0>
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>>=A0>
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>>=A0>
>>=A0><xport>
>>=A0>=C2=A0=C2=A0<meta>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<start>1188998580</start>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<step>60</step>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<end>1189002180</end>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<rows>61</rows>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<columns>1</columns>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<legend>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0<entry>m em</entry>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0</legend>
>>=A0>=C2=A0=C2=A0</meta>
>>=A0>=C2=A0=C2=A0<data>
>>=A0>--cut--
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<row><t>1189001880 </t><v>NaN</v></row>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<row><t>1189001940 </t><v>NaN</v></row>
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>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<row><t>1189002060 </t><v>NaN</v></row>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<row><t>1189002120 </t><v>NaN</v></row>
>>=A0>=C2=A0=C2=A0=C2=A0=C2=A0<row><t>1189002180 </t><v>NaN</v></row>
>>=A0>=C2=A0=C2=A0</data>
>>=A0></xport>
>>=A0>
>>=A0>Any=C2=A0idea=C2=A0what=C2=A0the=C2=A0proble m=C2=A0can=C2=A0be?
>>=A0>
>>=A0>Regards,
>>=A0>Tjerk
>>=A0>
>>=A0>____________________________________________ ___
>>=A0>rrd-users=C2=A0mailing=C2=A0list
>>=A0>rrd-users@lists.oetiker.ch
>>=A0>https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
>>=A0>
>>=A0>
>>
>>=A0_____________________________________________ __
>>=A0rrd-users=A0mailing=A0list
>>=A0rrd-users@lists.oetiker.ch
>>=A0https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
>>
>>
>
>--
>Tobi=A0Oetiker,=A0OETIKER+PARTNER=A0AG,=A0Aarweg= A015=A0CH-4600=A0Olten
>http://it.oetiker.ch=A0tobi@oetiker....2=A0213=A09902
>

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