Graph has no data for localhost

[WLM]

I installed Cacti using Debian (packages) on Lenny.

Then, followed all instructions. Then changed the username that runs the web-server and chown the cacti and rrd folders to the username I am using and used to run the web-server.

Then the rrdtool has a graph after the cron run, unfortunately there where no data?

Any ideas why?

[gandalf]

Please see 2nd link of my sig for some debugging procedure
R.

[WLM]

Hi, thanks! I Saw this error when I manually runned the poller.

10/26/2009 03:15:59 PM - POLLER: Poller[0] NOTE: Poller Int: '300', Cron Int: '3 00', Time Since Last: '444491', Max Runtime '298', Poller Runs: '1'
10/26/2009 03:15:59 PM - POLLER: Poller[0] WARNING: Cron is out of sync with the Poller Interval! The Poller Interval is '300' seconds, with a maximum of a '30 0' second Cron, but 444491 seconds have passed since the last poll!
10/26/2009 03:15:59 PM - POLLER: Poller[0] DEBUG: About to Spawn a Remote Proces s [CMD: /usr/bin/php, ARGS: -q /usr/share/cacti/site/cmd.php 0 1]
Waiting on 1/1 pollers.
10/26/2009 03:16:00 PM - POLLER: Poller[0] Parsed MULTI output field '1min:0.00' [map 1min->load_1min]
10/26/2009 03:16:00 PM - POLLER: Poller[0] Parsed MULTI output field '5min:0.03' [map 5min->load_5min]
10/26/2009 03:16:00 PM - POLLER: Poller[0] Parsed MULTI output field '10min:0.00 ' [map 10min->load_15min]
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_hdd_free_11.rrd --template hdd_used:hdd_free 12565845 59:18525668:207152180
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_hdd_free_10.rrd --template hdd_used:hdd_free 12565845 59:12499456:8638976
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_hdd_free_9.rrd --template hdd_free:hdd_used 125658455 9:22208684:233791280
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_proc_8.rrd --template proc 1256584559:106
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_proc_7.rrd --template proc 1256584559:106
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_load_1min_5.rrd --template load_1min:load_5min:load_1 5min 1256584559:0.00:0.03:0.00
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_users_6.rrd --template users 1256584559:2
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_mem_swap_4.rrd --template mem_swap 1256584559:2649960
10/26/2009 03:16:00 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /v ar/lib/cacti/rra/localhost_mem_buffers_3.rrd --template mem_buffers 1256584559:1 29684
10/26/2009 03:16:00 PM - SYSTEM STATS: Time:1.1797 Method:cmd.php Processes:1 Th reads:N/A Hosts:2 HostsPerProcess:2 DataSources:12 RRDsProcessed:9
OK u:0.00 s:0.00 r:1.07
OK u:0.00 s:0.00 r:1.09
OK u:0.00 s:0.00 r:1.11
OK u:0.00 s:0.00 r:1.11
OK u:0.00 s:0.00 r:1.11
OK u:0.00 s:0.00 r:1.14
OK u:0.00 s:0.00 r:1.14
OK u:0.00 s:0.00 r:1.14
OK u:0.00 s:0.00 r:1.14
Loop Time is: 1.27237892151
Sleep Time is: 298.694541216
Total Time is: 1.3054587841

I am running a Debian Lenny installation. What does the error exactly means? Does it relate why I am not getting a graph?

[WLM]

Found this...

root:/var/lib/cacti/rra$ rrdtool info localhost_hdd_free_10.rrd
filename = "localhost_hdd_free_10.rrd"
rrd_version = "0003"
step = 300
last_update = 1256585341
ds[hdd_free].type = "GAUGE"
ds[hdd_free].minimal_heartbeat = 600
ds[hdd_free].min = 0.0000000000e+00
ds[hdd_free].max = NaN

Is set to NaN, tried to experiment and changed to:

ds[hdd_free].max = 1.0000000000e+02

[gandalf]

The error suggests, that you do not run the poller from crontab.
Changing the MAX value is in general a good move. But NaN does represent "no MAX at all" in this case, so I suppose that this was not a problem. Indeed, setting it to 100 (10 E+2) generally will CAUSE problems
R.

[dunxd]

Aha! Thanks. You prompted me to check somewhere else and I got things working.

I had setup the cronjob to run via the crontab for the cactiuser, rather than specifying it in /etc/crontab

I changed this, and voila - graphing now seems to be working on my localhost.