Killspike integration in webinterface

Ahuber · Post by **Ahuber** » Wed Dec 06, 2006 3:10 pm

Hey Alice, I used it again on another graph, and same thing happened The whole graph goes ZERO). I will use your updated code from now on and test it. FYI i am using on CactiEZ

*UPDATE*
For some reason it works now....
Thanks!

torstentfk · Post by **torstentfk** » Wed Dec 27, 2006 3:34 am

Hi,

found some points that my be the cause that the script does not work:
check removespike.pl for:
- path definition for rrdtool
- change (unix-version) the $ARGV[1] to $ARGV[0].
Now the checking algorithm works.

Torsten

ruud · Post by **ruud** » Wed Feb 07, 2007 8:31 am

I was quite happy with the results of kill spike.. i push the button, viola spike is gone..

the thing is.. after killing the spike, the permissions and ownership of the particular ra file is changed..

The file is owned by apache instead of my cactiuser and the file permissions get changed as well...

This causes my graph to stop functioning since cacti no longer has access to the file..

How can i prevent this from happening ? I assume killspike creates a copy of the original rra file but with the wrong permissions / owner..

Post by **TheWitness** » Wed Feb 07, 2007 9:14 pm

1) You must have Unix as your OS, which I assume is the case.
2) You must have the POSIX php module installed "php -m".
3) You will change add the following lines of code to your/the program:

Code: Select all

if (file_exists($myfile)) {
   $current_process_owner = posix_getuid();
   $current_owner = fileowner($myfile);

   /* change the process owner of the current process */
   if (posix_setuid($current_owner)) {
      /* perform spike kill */
      spike_kill_me_mama();
      /* return ownership of the current process */
      posix_setuid($current_process_owner);
   }else{
      echo "Too bad so sad, can not change uid of the current process\n";
   }
}

Of course, you will have to change some things around to make it actually work, but it is essentially in tact.

Maybe Alice can make these changes for you?

TheWitness

Alice · Post by **Alice** » Thu Feb 08, 2007 8:44 am

It won't work.

PHP file is launched as apache_user.
It should run the killspike.pl script as cacti_user, which is impossible. [security]
It WOULD be possible if the apache would be run as root.

ruud: you can do the following thing:

create a new group, let's call it cactiperm
include cacti_user and apache_user in cactiperm
chown cacti_user.cactiperm /home/cacti/rra -R
chmod go+rw /home/cacti/rra -R

this should work.

Post by **TheWitness** » Thu Feb 08, 2007 8:53 pm

So, Alice, what you are saying is that the Apache user is not privileged and therefore can not SU to the new user. I guess I should have known this

Maybe we could have the boost_server perform these tasks? Do you want to team up to do this?

Larry

Alice · Post by **Alice** » Fri Feb 09, 2007 5:40 am

Sorry, i don't have time to play w/ boost, other than image caching, on another machine.
AND weathermaps are more important to me than boost. And, right now, i don't need it.
Soon i'll install another cacti server, on another machine, without weathermaps. THERE I can play with it.

Post by **TheWitness** » Fri Feb 09, 2007 8:28 am

Cool. I've got to talk with Howie on making his stuff compatible

He was not to excited about doing it himself. He wanted me to re-write his code. I too am quite busy

. We'll get there though.

Larry

gg234 · Post by **gg234** » Tue Feb 27, 2007 9:18 am

Hi,

I am trying to use killspike and i am getting the following error and i ma using cacti 0.8.6j and i have installed RRD tool from source when can i change the RRD tool path in .pl script.

Notice: Undefined index: killspike.php: in /var/www/cacti/lib/functions.php on line 1432

Notice: Undefined index: killspike.php: in /var/www/cacti/lib/functions.php on line 1451
-> Import Templates

Removing spikes for: /var/www/cacti/rra/localhost_proc_7.rrd

Limit set to 0.6
No peaks found!

I have given the execute permissions for .pl script and my rra is having web server user ownership.

Could some one help me how to fix this error.

Thanks for your help

Post by **gandalf** » Fri Mar 02, 2007 4:05 pm

No error messages in this forum, please.
And no crossposts ...
Reinhard

twelzy · Post by **twelzy** » Mon Mar 19, 2007 12:26 am

Anyone make it work under the Windows environment?!

Thanks in advance!
(And sorry for my poor English)

apperrault · Post by **apperrault** » Wed Mar 28, 2007 1:28 pm

I was going to ask the same question Twelzy. I have installed the plugin, and when i run it, i don't get any errors, but the spikes don't go away either.

I hope that someone can make this work on a Windows hosted Cacti environment.

app

cjennings_cr · Post by **cjennings_cr** » Tue Jun 05, 2007 10:27 am

I got it working on Windows (2003) with Cacti 0.8.6j - but had to manually edit the removespikes.pl:

(Note also - I use LDAP for login and so my realm is different - 0 = local / 1 = LDAP) - so I had to edit the setup.php file to just remove the whole realm check for the user id {replaced " and realm = 0" with "" } on line 44.

Line 33: put a windows path to temp file (c:/tmp/blah)
Make sure NETWORK SERVICE user had modify rights here.

Line 37: change to windows style path to RRDTOOL (c:/rrdtool/rrdtool blah)
Make sure NETWORK SERVICE user had read rights here.

Line 130: change to windows style path to RRDTOOL (c:/rrdtool/rrdtool blah)

Make sure NETWORK SERVICE has read rights to perl (c:/perl) and modify rights to <cacti path>/rra

do not know why it is using NETWORD SERVICE as the user - but this is what I determined was the user being used.

leonardo_gyn · Post by **leonardo_gyn** » Wed Jun 20, 2007 5:03 pm

silly question ..... how is this supposed to work ??? I found absolutely nothing related to plugin in my cacti 0.8.6j installation !

Post by **TheWitness** » Thu Jun 21, 2007 12:40 am

This is a Plugin. It is not a part of Cacti.

TheWitness

Cacti

Killspike integration in webinterface

killspike changes file permissions - stops graphing

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