Weathermap permnissions

[Howie]

Nothing at all in the cacti.log? Even with no maps, you should get one or two lines (unless quiet logging is enabled in the Weathermap settings in Cacti).

But: you do get the Manage..Weathermaps page? And you do have a list of maps in that page?

That indicates that the plugin is installed OK, and the database tables exist (otherwise you would have no maps listed).

[bartc]

Weathermap management works fine , i can see my added maps listed. Nothing in cacti log, weathermap "chatty"chatty logging enabled , cacti debug log enabled. No maps are generated. I am using editor and i see config is saved properly , i have edited weathermap script so it can display name of thumbnail. Then i used cli to manually generate it. When doing it manually all works fine. I am suspecting that there is some issue with calling weathermap script by cacti poller, need to have a look into cmd.php , but you probably know how it works so if you give some tips that will save my time on reverse engineering troubleshooting

[bartc]

Do you have any ideas where to look , I would like to trace how weathermap script is being initiated.

[Howie]

The weathermap *script* isn't initiated. Parts of the weathermap plugin are called by the Cacti plugin architecture.

I guess you need to look at the plugin_* database tables to check if there is a weathermap entry for the poller_bottom hook.

[bartc]

Hah , didn't know about that, ok so here are my findings.

1. In the Plugin Management I can see Weathermap with type "old PIA"
2. In the cacti database , I have displayed plugin_config table and weathermap is not there
3. In the cacti database , I have displayed plugin_realms and I can see weathemap displays there

Is this correct ?

[bartc]

So I have found sort of workaround , first I gather info about current maps and their filehash from database, then I run command weathermap from a script specifying config files and html output , at the end I use convert to generate thumbnails for existing maps. I agree its very dirty way but I havent found solution for my problem.

PS. All works fine when I generate html manually , when I dod that from script using exactly the same commands , html file is not being diplayed , it has slighlty larger size , I had a glance on the content and it looks the same as when generate manually from cli. So I got stuck again. Need to look at it again today.

[Howie]

There's actually already a command-line script to use the cacti database settings... check out cacti-weathermap-rebuild.php

This does what the poller does, but from the command line.

[bartc]

It seems that everything works when the maps are generated using weathermap *script* when it's generated withing the folder, so I actually ended up with following script running every hour (probably I will modify it in a way that it only acts upon config change for particular map):

Code: Select all

#!/bin/bash
#

path=/var/www/cacti/plugins/weathermap/
pathcfg=/var/www/cacti/plugins/weathermap/configs/
bin=/var/www/cacti/plugins/weathermap/weathermap
pathout=/var/www/cacti/plugins/weathermap/output/
mysql --skip-column-names --user='root' --password='XXXXX' --database='cacti' --execute='select configfile,filehash from weathermap_maps' > "$path"weathemap_maps_list
mapslist="$path"weathemap_maps_list

if [ -f $mapslist ]
then
	while read maps
	    do
		config=$(echo $maps | awk '{$NF=""; print $0}')
                map=$(echo $maps | awk '{print $NF}')
		cd /var/www/cacti/plugins/weathermap/
                ./weathermap  --config configs/$config --output output/$map.png --htmloutput output/$map.html #--debug
		sleep 5
		convert -thumbnail 300x300 $pathout$map.png $pathout$map.thumb.png
	    done < $mapslist
fi

[Howie]

Yeah, weathermap-cacti-rebuild.php does that for you. I still don't see why the regular poller function isn't called though.

[bartc]

Me neither, but at least I have workaround that works pretty well.

I would like to thank you for all help and suggestions, now I can proceed with installation of nagios plugin and more.

[squintero]

Hello,

I have a problem with the Weathermap plugin. I did all the steps but I still do not see the map.

The warning is displayed:

Last Completed Run: Sun, 23 Apr 17 23:20:01 -0500: 0 maps were run in 0 seconds with 1 warnings. (Permissions problem prevents any maps running WMPOLL06)

I already gave permissions to the folders as they have suggested but I still do not see the network map.

What I can do ?

Thank you

[Howie]

Please show the permissions (ls -ld output/ then ls -l output/ )

Which user does the cacti poller run as?

[squintero]

Please show the permissions (ls -ld output/ then ls -l output/ )

Which user does the cacti poller run as?

The user is admin.

Hi Howie, I ran the commands you gave me and this is the result ...

[Howie]

No, not the user inside Cacti. What linux user runs the Cacti poller.php process?

The output directory should be owned by that user.

[Howie]

Another way to check: do an 'ls -l' in the cacti rra directory. Whatever user owns that directory should also own the output directory. It is probably a user called 'cacti', but it can be different depending on the installation.