zabbix-developers — For developers

[Zabbix-developers] Postgres and 1.3.4

[Benny A. <ben...@am...>]

There is a slight glitch during the installation with Postgres and
1.3.4. On the screen "Configure DB connection", zabbix accepts an
empty value for "host" but gives a warning. Still, the test succeeds
as it should. With Postgres, an empty host setting means "use Unix
sockets", and it is perfectly normal.

Unfortunately the Next button doesn't work as long as the warning is
there.


/Benny

[Zabbix-developers] PostgreSQL schema patch

[Troels A. <tr...@ar...>]

Hello,

I'm new to Zabbix.

I want to use the Zabbix 1.1 generation, and I want to use PostgreSQL.

It seems that Zabbix 1.1's PostgreSQL support is not complete, currently
(i.e. CVS HEAD). I hope that PostgreSQL support is still a goal?

My first (and currently only) step has been some minor changes to the
PostgreSQL schema, to at least allow the schema to load into PostgreSQL
without errors:
http://troels.arvin.dk/zabbix/patches/20060518/postgresql-schema.sql.patch

The patch is for CVS HEAD as of 2006-05-18.

-- 
Greetings from Troels Arvin, Copenhagen, Denmark

Re: [Zabbix-developers] Request for comment on external item implementation

[alex <al...@go...>]

Hi Colin,

Thansk for your work.

Please may I ask you to duplicate the message in one of ZABBIX Forums
available on www.zabbix.com.

The mailing list is not very busy, so you get very very limited feedback
here if any.

Regards,
Alexei
-- 
Alexei Vladishev
ZABBIX Developer, Product Manager
Riga, Latvia

[Zabbix-developers] Request for comment on external item implementation

[Colin S. <co...@in...>]

Also testing if there's actually any activity on the damn list.

My patch adds 'ExternalScriptsPath' to zabbix_server.conf, it is a path =
to a directory with executables, the names for which become the item =
keys. Anything within [ and ] is passed to the executable as command =
line arguments. If the file cannot be read or executed it should be =
tagged as "unsupported" and become disabled.

I think the UserParameter statements are brilliant for agent =
configuration, but you cannot run an agent everywhere, and the ability =
for Zabbix to run external scripts from the server itself is essential =
in order to achieve the flexibility it needs to become a good all round =
monitoring/alerting system.=20

It also means agent reconfiguration and restart, as well as the ideal of =
maintaining a modification history for individual agent configurations =
is not necessary.

This is just a request for comment really. Can anyone see any major =
drawbacks to this (multiple layers of fork/context switches yes I know), =
or any problems with the code that I've not anticipated ? Any =
suggestions etc ?

I think a flexible compiled plugin system would be more ideal for =
extending Zabbix with a reasonable level of assurity that the function =
performed is trustworthy and the type and extent of results will be =
guaranteed. Has anyone started work on something like that ?

This is unfortuanetly only against 1.1alpha9, as I'm yet to update to =
1.1alpha10.

Example for external items,

[root@zabbix zabbix]# ls -l /usr/lib/zabbix/external/
total 32
-rwxr-xr-x  1 zabbix zabbix 363 May 31 17:33 latency
-rwxr-xr-x  1 zabbix zabbix 794 May 31 18:25 packetloss
-rwxr-xr-x  1 zabbix zabbix 398 May 31 17:33 ping
-rwxr-xr-x  1 zabbix zabbix 970 May 31 17:43 temptraxe

[root@zabbix zabbix]# cat /usr/lib/zabbix/external/temptraxe
#!/bin/sh

CHECK_TEMPTRAXE=3D"/usr/lib/nagios/plugins/contrib/check_temptraxe"

HOST=3D"${1}"
PROBE=3D"${2}"

if [ -z "${HOST}" ]
then
        echo "Usage: ${0} <HOST> [<PROBE>]"
        exit 1
fi

if [ -z "${PROBE}" ]
then
        PROBE=3D1
fi

RESULT=3D`${CHECK_TEMPTRAXE} --celsius -H ${HOST} -p ${PROBE} | grep =
^Temp | sed -e "s/^.*=3D\ //" -e "s/\ C.*$//"`

if [ -z "${RESULT}" ]
then
        echo "999.0"
else
        echo "${RESULT}"
fi

# EOF

mysql> SELECT key_, hostid, nextcheck, lastvalue, status, units, delta =
FROM items WHERE type=3D'8' AND key_ LIKE '%temptrax%';
+--------------+--------+------------+-----------+--------+-------+------=
-+
| key_         | hostid | nextcheck  | lastvalue | status | units | =
delta |
+--------------+--------+------------+-----------+--------+-------+------=
-+
| temptraxe[1] |  10059 | 1117785600 | 13.4      |      0 | =B0C    |    =
 0 |
| temptraxe[2] |  10059 | 1117785600 | 24.9      |      0 | =B0C    |    =
 0 |
| temptraxe[4] |  10059 | 1117785600 | 25.7      |      0 | =B0C    |    =
 0 |
| temptraxe[3] |  10059 | 1117785600 | 30.1      |      0 | =B0C    |    =
 0 |
+--------------+--------+------------+-----------+--------+-------+------=
-+
4 rows in set (0.03 sec)

mysql> SELECT key_, hostid, nextcheck, lastvalue, status, units, delta =
FROM items WHERE type=3D'8' AND hostid=3D'10018';
+------------+--------+------------+-----------+--------+-------+-------+=

| key_       | hostid | nextcheck  | lastvalue | status | units | delta =
|
+------------+--------+------------+-----------+--------+-------+-------+=

| latency    |  10018 | 1117531500 | 15.7      |      0 | ms    |     0 =
|
| packetloss |  10018 | 1117531500 | 0         |      1 | %     |     0 =
|
+------------+--------+------------+-----------+--------+-------+-------+=

2 rows in set (0.01 sec)

Regards

Colin Stubbs

Systems Engineer

IntraPower Pty Ltd
Level 14, 167 Eagle Street
Brisbane QLD 4000
Australia
Phone: +61 7 3032 3030
Fax +61 7 3032 3001
Email: su...@in...

[Zabbix-developers] login problem

[Kaushik B. <kbh...@fa...>]

Hi,

Earlier I have set some password for "admin" user. Now I can't recall
the password. How to reset the password in zabbix?

Thanks!

[Zabbix-developers] zabbix_sender with exec

[Jean-Baptiste M. <jbm...@pr...>]

Hi !

I tried to execute zabbix_sender in a short C program : here is the source.

#include <stdio.h>
#include <unistd.h>

int main(int argc, char* argv[])
{
   int i;
   i = 
execl("/usr/local/zabbix/bin/zabbix_sender","192.168.128.208","10001","Tests:trap","foo",NULL);
   printf("%d\n",i);
   return 0;
}

I compile it with gcc and then I execute it.
Here is the error I get :

Boul6m:/home/mariotte# ./trap2zabbix
Usage: zabbix_sender <Zabbix server> <port> <server:key> <value>
If no arguments are given, zabbix_sender expects list of parameters
from standard input.

It is as if I made a mistake typing the command.
But when I type it directly in the shell, no problem, I receive a "OK" 
and it is correctly transmited in Zabbix :

Boul6m:/home/mariotte# /usr/local/zabbix/bin/zabbix_sender 
192.168.128.208 10001 Traps:trap "foo"
OK

I think the error comes from zabbix_sender, that's why I'm telling you.
Thanks for your help,

Jean-Baptiste

[Zabbix-developers] new features

[Andrea C. <and...@ba...>]

Hello, I have developed a custom version of zabbix_1.0beta8 whith gsm 
sms alarm notify. I have integrated Kannel software an zabbix and I've 
added a new media alarm notify that call a bash script.
Are you interested?

Andrea

Re: [Zabbix-developers] How easy would it be to add a 'plug-in'?

[Alexei V. <al...@go...>]

Hi,

I do have plans of introducing user hooks to make possible the following:

 - extending Zabbix agents without making changes/recompiling of Zabbix 
 code
 - adding new delivery channels for user alerts (like SMS, Novell messages, 
 etc)
 - other

I cannot give any estimations when this could be implemented.

Currenly, no plug-ins are supported. However you may extend Zabbix 
functionality by:

 - defining user parameters in zabbix_agentd.conf
 - sending information to the Zabbix server using zabbix_sender 

I'd like to see functionality you described as part of Zabbix. I believe
it would be useful for many users. Implementation of this functionality
will require introduction of new data type: blob. New parameter, say
fetch_html[www.sf.net], could periodically fetch the URL and store it in
the database. Function 'diff' can already be used to check if the latest
result of fetch is equal to previous one. Also function 'str' can be used
to check if received result contains specific substring.

Check of regular expression will obviously require new function.

I'll update TODO list to include your ideas.

I would suggest to do the following if you want to have this functionality today:

1. Add new item of type Trapper having Key="page_was_changed"
2. Set up CRON job to call a script which would do the job of retrieving HTML page,
searching for required string
3. If the string is found, zabbix_sender will be called to send '1' as
value of 'page_was_changed'. '0' - otherwise
4. Define trigger and actions to receive email notification when
parameter 'page_was_changed' changes its value.

The only missing part of the solution is lack of a link to the cached failed page.

Please, let me know if this helped. Anyway, do not hesitate to ask any
questions :)

Best regards,
Alexei

On Thu, Feb 06, 2003 at 11:06:57AM -0800, Benjamin 'Quincy' Cabell V wrote:
> Hi
> 
> We need a feature which Zabbix doesn't have, and I'm just wondering how
> easy it would be to add this feature without needing to modify core
> Zabbix code.  I didn't know if Zabbix had an architecture which
> allowed/encouraged plug-ins.
> 
> Here's what we need, to give you an idea.  I don't see anything in the
> manual to indicate that Zabbix has this:
> 
> A URL check which fetches a page and looks for the presence or absence
> of one or more regular expressions.  For example, I could say, fetch
> this page, and fail if you find "Status: ERROR", which would be
> something we might define our code to return if there was some error
> condition.  Also, we might say, fetch this URL and fail if the URL does
> NOT include one or more regular expressions (maybe the symptoms of one
> web application's failure is the absence of specific content).  And we'd
> store the failed page and would want to be able to have a link for that
> cached failed page in the failure notification e-mail that goes out
> through the Zabbix system.
> 
> Could anyone tell me whether this exists or could easily be done without
> needing to significantly modify Zabbix?  (We really don't have the
> resources to have to re-integrate our changes every time we want to keep
> up with a Zabbix update.)
> 
> Quincy
> 
> 
> 
> 
> -------------------------------------------------------
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> SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
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> _______________________________________________
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[Zabbix-developers] How easy would it be to add a 'plug-in'?

[Benjamin 'Q. C. V <qu...@be...>]

Hi

We need a feature which Zabbix doesn't have, and I'm just wondering how
easy it would be to add this feature without needing to modify core
Zabbix code.  I didn't know if Zabbix had an architecture which
allowed/encouraged plug-ins.

Here's what we need, to give you an idea.  I don't see anything in the
manual to indicate that Zabbix has this:

A URL check which fetches a page and looks for the presence or absence
of one or more regular expressions.  For example, I could say, fetch
this page, and fail if you find "Status: ERROR", which would be
something we might define our code to return if there was some error
condition.  Also, we might say, fetch this URL and fail if the URL does
NOT include one or more regular expressions (maybe the symptoms of one
web application's failure is the absence of specific content).  And we'd
store the failed page and would want to be able to have a link for that
cached failed page in the failure notification e-mail that goes out
through the Zabbix system.

Could anyone tell me whether this exists or could easily be done without
needing to significantly modify Zabbix?  (We really don't have the
resources to have to re-integrate our changes every time we want to keep
up with a Zabbix update.)

Quincy

Re: [Zabbix-developers] Problem with Zabbix URL

[Alexei V. <al...@go...>]

Hi Luis,

Sorry for delay - I'm on holiday :)

It seems that you should change configuration of Zabbix. Unfortunately,
currently, I do not have access to Apache configuration, but there is an option
which specifies location of home HTML directories. Usually, the parameter is set to 
~user/public_html.

Check that you copied your files to the directory.

Also, look at Apache's access.log and error.log for possible hints.

Let me know if this helped you, if not I'll be back to the problem at Monday.

Good luck!

Alexei

On Wed, Aug 07, 2002 at 01:10:17PM -0500, Luis Atiencia Alarcón wrote:
> Hi, i have found this list.  I want you to help me.
> 
> I am evaluating Zabbix, i am work in a bank, i have followed all the
> installations steps, but when i try to access:  http://localhost/~zabbix, i
> cant and the page shows a message as this:  "The requested URL /Zabbix was
> not found on this server".
> 
> If you could help me,
> 
> Thanks,
> Luis Atiencia A.
> 
> 
> -------------------------------------------------------
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> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Zabbix-developers mailing list
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[Zabbix-developers] Problem with Zabbix URL

[<lat...@bo...>]

Hi, i have found this list.  I want you to help me.

I am evaluating Zabbix, i am work in a bank, i have followed all the
installations steps, but when i try to access:  http://localhost/~zabbix, i
cant and the page shows a message as this:  "The requested URL /Zabbix was
not found on this server".

If you could help me,

Thanks,
Luis Atiencia A.