[rrd-users] Problems with rrd_update()

[Mikael Löfstrand]

Hello,
I've just started out programming with librrd (instead of piping the 
commands to the rrdtool binary) and I'm having problems with rrd_update 
in librrd. I'm getting a seg fault every time I try to use it(!). Right 
now I'm using version 1.0.49 as per Debian/stable (Sarge). I know the 
1.2.10 release is out there but I'd like to stay stable with Debian as 
far as possible.

I've tried to create/update the rrd with a pipe too and that's working.

Heres the compiling and running of "rrdlib.c" (attached):
mld at netflow:~/v2/rrdtest$ gcc -Wall -lrrd -o rrdlib rrdlib.c

mld at netflow:~/v2/rrdtest$ ./rrdlib
rrd_create: 0
Segmentation fault


And the pipe.c (attached):
mld at netflow:~/v2/rrdtest$ gcc -Wall -o pipe pipe.c

mld at netflow:~/v2/rrdtest$ ./pipe
create --start -32140800 --step 300 test.rrd DS:test1:ABSOLUTE:600:0:U 
DS:test2:ABSOLUTE:600:0:U RRA:AVERAGE:0.5:6:336
update -t test1:test2 test.rrd 1121250600:111:555
update -t test1:test2 test.rrd 1121250900:222:444
update -t test1:test2 test.rrd 1121251200:333:333
update -t test1:test2 test.rrd 1121251500:444:222
update -t test1:test2 test.rrd 1121251800:555:111

mld at netflow:~/v2/rrdtest$ ./pipe | rrdtool -
OK u:0.00 s:0.01 r:0.00
OK u:0.09 s:0.01 r:0.09
OK u:0.09 s:0.01 r:0.09
OK u:0.09 s:0.01 r:0.09
OK u:0.09 s:0.01 r:0.09
OK u:0.09 s:0.01 r:0.09


Does anyone have any ideas on what might be wrong?

Mikael Löfstrand


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