[rrd-users] graph from mysql

[Shabbir Ahmed]

some time when i query for snmp the get times out so i cant fill in the
table at that time, to fix this wat should i do ?

12:00 i queried db response recorded into mysql
12:05 i queried but snmp get timeout, no entry into mysql
12:06 i queried and got the response into mysql.




On Mon, May 13, 2013 at 11:36 AM, Martin Sperl <rrdtool at martin.sperl.org>wrote:

> Hi!
>
> One observation: actually you should see 4 lines not 2 or 1.
>
> The other is that your data is possibly not stored "equidistant", so that
> there are slight "gaps" of say 302 seconds between consecutive datapoints,
> which would mean that you are producing times like
> this: 0,302,603,...,3298,3601,... (so there would be a gap at time 3300 to
> 3599)
>
> For debugging purposes: can you please run rrdtool like this:
> RRDDEBUGSQL=1 *rrdtool graph test.png --imgformat=PNG --start=-1day
> --width=600 --height=80    -S=300     "DEF:min=$UP:min:AVERAGE"
> "LINE1:min#336600:value"*
>
> Then you will see the SQL that gets executed and then you can run the SQL
> on your own to understand how this "gaps" are generated from the database...
>
> But there is also an option to "fill in" "missing" gaps in rrd via the
> "/rrdfillmissing=" option.  The idea here is similar to the "xff" argument
> to rrdcreate for the RRA definition.
>
> So you may try to add it to your DEF like this: UP="sql//mysql/host=
> 127.0.0.1/dbname=newdsl/username=root/password=nocb4enter<http://127.0.0.1/dbname=newdsl/username=root/password=nocb4enter//g3412306061/time/up/idx=201409600>
> /rrdfillmissing=1//g3412306061/time/up/idx=201409600<http://127.0.0.1/dbname=newdsl/username=root/password=nocb4enter//g3412306061/time/up/idx=201409600>
> "
>
> Ciao,
> Martin
>
> On 12.05.2013, at 15:05, Shabbir Ahmed wrote:
>
> Hi, i collect data from switches and save them into mysql,
> (snmpidx,time,up,down)
>
> now i want to draw graphs using
>
> DOWN="sql//mysql/host=
> 127.0.0.1/dbname=newdsl/username=root/password=nocb4enter//g3412306061/time/down/idx=201343232
> "
> UP="sql//mysql/host=
> 127.0.0.1/dbname=newdsl/username=root/password=nocb4enter//g3412306061/time/up/idx=201409600
> "
>
> *rrdtool graph test.png --imgformat=PNG --start=-1day --width=600
> --height=80    -S=300     "DEF:min=$UP:min:AVERAGE"
> "LINE1:min#336600:value"     "DEF:avg=$UP:avg:AVERAGE"
> "LINE1:avg#00FF11:average"     "DEF:max=$UP:max:AVERAGE"
> "LINE1:max#FF0000:max" "DEF:dw=$DOWN:min:AVERAGE" "LINE1:dw#0033CC:value"
>
> *
> *1. the graphs drawn has gaps (i collect data every five mins) and draw
> them with 5 mins step but still the gape bw two occurences are empty.
>
> *
> *2. it doesnt draw two lines.
>
> *
> *Kindly help,
> *
> *
> *
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