more empty graphs.

[beasty_tech]

Hi there,

Not sure what is going on with my Linux box, but for one I am running SME Server (E-smith 6.0) and It has oldish versions of PHP, etc... Not sure if they could be causing blank graphs?

I have patched up my cacti and am still getting blank graphs.

When I run: php -q poller.php

I get a list of about 20 OK's which looks right.

Any ideas?

[beasty_tech]

I turned on DEBUG mode and ran php -q poller.php and this was the result.

[root@linbox html]# php -q poller.php
12/16/2004 02:40:44 PM - POLLER: Poller[0] DEBUG: About to Spawn a Remote Process [CMD: /usr/bin/php, ARGS: -q /home/e-smith/files/ibays/cacti/html/cmd.php 0 1]
Waiting on 1/1 pollers.
12/16/2004 02:40:45 PM - POLLER: Poller[0] Parsed MULTI output field '1min:0.00' [map 1min->load_1min]
12/16/2004 02:40:45 PM - POLLER: Poller[0] Parsed MULTI output field '5min:0.03' [map 5min->load_5min]
12/16/2004 02:40:45 PM - POLLER: Poller[0] Parsed MULTI output field '10min:0.00' [map 10min->load_15min]
12/16/2004 02:40:45 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /home/e-smith/files/ibays/cacti/html/rra/localhost_load_1min_5.rrd --template load_1min:load_5min:load_15min 1103172044:0.00:0.03:0.00
12/16/2004 02:40:45 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /home/e-smith/files/ibays/cacti/html/rra/localhost_mem_swap_4.rrd --template mem_swap 1103172044:265064
12/16/2004 02:40:45 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /home/e-smith/files/ibays/cacti/html/rra/localhost_mem_buffers_3.rrd --template mem_buffers 1103172044:353600
12/16/2004 02:40:45 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /home/e-smith/files/ibays/cacti/html/rra/localhost_users_6.rrd --template users 1103172044:1
12/16/2004 02:40:45 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /home/e-smith/files/ibays/cacti/html/rra/localhost_proc_7.rrd --template proc 1103172044:119
12/16/2004 02:40:45 PM - SYSTEM STATS: Time: 1.0453 s, Method: cmd.php, Processes: 1, Threads: N/A, Hosts: 2, Hosts/Process: 2
OK u:0.00 s:0.01 r:1.01
OK u:0.00 s:0.01 r:1.01
OK u:0.00 s:0.01 r:1.01
OK u:0.00 s:0.01 r:1.01
OK u:0.00 s:0.01 r:1.01

Cheers

[beasty_tech]

On DEBUG mode, cmd.php brings up these lines.

[root@linbox html]# php -q cmd.php
#!/usr/bin/php -q
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] WARNING: PHP version 4.3 or above is recommended for performance considerations.
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Host[1] SNMP: Device does not require SNMP
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Host[1] No host availability check possible for '127.0.0.1'.
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Host[1] CMD: perl /home/e-smith/files/ibays/cacti/html/scripts/linux_memory.pl MemFree:, output: 357188
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Host[1] CMD: perl /home/e-smith/files/ibays/cacti/html/scripts/linux_memory.pl SwapFree:, output: 265064
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Host[1] CMD: perl /home/e-smith/files/ibays/cacti/html/scripts/loadavg_multi.pl, output: 1min:0.00 5min:0.00 10min:0.00
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Host[1] CMD: perl /home/e-smith/files/ibays/cacti/html/scripts/unix_users.pl, output: 1
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Host[1] CMD: perl /home/e-smith/files/ibays/cacti/html/scripts/unix_processes.pl, output: 116
12/16/2004 02:45:18 PM - CMDPHP: Poller[0] Time: 0.1413 s, Theads: N/A, Hosts: 1
[root@linbox html]#

Cheers

[beasty_tech]

I have since done some more playing and testing and I have managed to get the first Poll to work and update the rrd files. After the first Poll it stops graphing. I have put in the patch to stop the gaps in the graphs but it still seems to be doing so. Any ideas?

[TheWitness]

Verify that you only have 1 cron defined for Cacti.

TheWitness

[beasty_tech]

I've been hearing and reading lots about this cron business. Not quite sure what it means though, i was looking for duplicate cron entried but have no idea where to look. Can you help?

EDIT: I have just realised that I can update my RRD files manually by running the poller.php and cmd.php from console. If i do not run these files manually, they are not executed automatically. Any ideas why? This seems to be my only problem. ??????????????

[beasty_tech]

Basically, I don't have any crontab entries so it's not polling automatically. Where are the crontab entries created by deafault?
I'm on SME Server does this make a difference?

Please help.

[zanaguara]

With the crontab command.

If you type "crontab -e" you can edit your crontab file. You will use the editor specified by the VISUAL or EDITOR environment variables. Normally it is "vi". So:

- "crontab -e"
- edit like in "vi"
- "wq!" to save the file
- "crontab -l" to display crontab file content

[beasty_tech]

I'm not exactly sure what to put in the contrab, that is my problem.
Also, where do I place the contrab lines? What is the default path upon installation?
Can you help?

[zanaguara]

In Linux, according to the documentation, you must write:

Code: Select all

*/5 * * * * cactiuser php /var/www/html/cacti/poller.php > /dev/null 2>&1

being "cactiuser" your user. Check that you have "poller.php" in the same location.

After that, you can have a look at /var/log/cron, to see if there are any errors.

Regards,

zanaguara

[beasty_tech]

Damn, you just beat me too it, was coming to say "I got it working". Yeah i saw similar posts of yours in a different forum and used that line (slightly modified) and now it's updating automatically.

Thanks for all your help!