Hollis Fudge | 16 Apr 01:31 2015

[Check_mk (english)] PNP4Nagios Error

Hello Check_MK Users,

Using OMD 1.20 with check_mk 1.2.4p5. Fixed the connection error to my remote site - found that using the $ character in the omdadmin password causes logging in to remote site problems with apache (E.g. If I had $3cr3t! - it would show only ! as the password in the apache logs due to $ being a linux special character.) However, I am stuck on this next step and am hoping you guys would help me. Somebody pointed me to Mod-proxy but I am still somewhat lost.


My issue is that the remote site shows live on my master monitor and I can see all data from livestatus but the PNP4Nagios/NagVis graphs from remote site does not work and throws an error: perfdata directory "/omd/sites/homemonitoring/var/pnp4nagios/perfdata/pfSense_CJI" for host "pfSense_CJI" does not exist.

I looked at the urls and I understand mostly what the page on Mod_proxy says about the url rewrites but the instructions found on that page does not match up with formatting or entries in my files as I do not even have the variable 'sites' or 'url_prefix' in my multisite.mk or nagios.conf files.

I see on my multisite on my master monitor that the master monitoring is trying to point to an incorrect url pointing to a local address:
http://ip_of_localhost/homemonitoring/pnp4nagios/index.php/graph?host=pfSense_CJI&srv=_HOST_&theme=multisite&baseurl=../check_mk/
(homemonitoring is my master monitor site.)

The localmachine should point to to the url on the remote machine instead:
http://ip_of_remote_host/cjimonitoring/pnp4nagios/index.php/graph?host=pfSense_CJI&srv=_HOST_&theme=multisite&baseurl=../check_mk/
(cjimonitoring is the site on the remote machine.)

How and where am I supposed to fix this url pointing error on my master monitor with OMD/check_mk to be able to retrieve the pnp4nagios and NagVis information from the remote machines?

Many thanks for looking! Appreciate it!
Hollis
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Stephen Berg (Contractor | 15 Apr 14:57 2015
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[Check_mk (english)] omd_status

I'd like to see the omd_status check include performance data for number 
of hosts and number of services.  It's more a curiousity thing than 
getting any real hard data.  But I think it'd be interesting to see that 
graphed over time.  I have one main OMD/check_mk system and 7 secondary 
systems.  Being able to watch the changes in hosts and services over 
time would be a nice addition.

If there's a way to implement this that I haven't found yet I'd 
appreciate a pointer to it.

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Systems Administrator
NRL Code: 7320
Office: 228-688-5738
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Troels Arvin | 15 Apr 09:57 2015
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[Check_mk (english)] Monitoring IBM/Lenovo xSeries server hardware

Hello,

How do I properly monitor xSeries server hardware with check_mk (v. 
1.2.6p1, distributed with OMD)?

On Dell and HP servers it can be done by activating SNMP on the server 
and installing the vendor's hardware instrumentation software + setting 
the server's "Agent type" to "Dual: Check_MK + SNMP" in check_mk.

How does it work with IBM/Lenovo xSeries servers? Googling seems to 
mainly point to somehow polling the server's IMM/IMM2 with SNMP; but this 
solution would mean that every IBM server appears twice in check_mk(?), 
and it would require that all the IBM/Lenovo xSeries servers can be 
accessed via an IMM(2).

Suggestions?

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Troels Arvin <troels@...>
http://troels.arvin.dk/

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Zdeněk Dlouhý | 15 Apr 09:50 2015
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[Check_mk (english)] OMD distributed monitoring

Hi there,

 

we are currently using OMD with distributed monitoring topology. It's working fine until some of the slave cores instalations becomes to (network) unreachable, then is unreachable (web UI) master site too.

Master site OMD is trying connect to slave OMD without any timeout and in this time is Master Check_mk unusable.

 

Is there any easy way, how to fix this bug? Thanks :) Used OMD v1.10 check_mk 1.2.2p2

 

Regards

Z. D.

 

 

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Robert | 15 Apr 00:57 2015
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[Check_mk (english)] Port Speed not detected properly

Hello, 

I have taken notice that for some reason the port speed isn't being
correctly detected on the F5. It is showing 100Bits not 100MB and this 
is throwing off the graphs. Is there anyway to fix this? I looked at
check_mk-if but didn't see anything there. 

--

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Robert

Smile... it increases your face value!
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David Carmean | 14 Apr 15:50 2015
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[Check_mk (english)] using OMD, want to try check_mk later than 1.2.5

I'm trying to understand how check_mk is packaged within OMD.

I see new features in check_mk that I'd like to try, but even the
latest snapshot build of omd still only contains check_mk v1.2.4p5...

at least that is what is displayed in the check_mk/multisite GUI when
I create a new test site from that upgraded version.

How can I install, say, check_mk v1.2.6 into an OMD-based system?  It
doesn't look like the OMD project is configured to use git
submodules...

Thanks.
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Mark Brandis | 14 Apr 10:08 2015
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[Check_mk (english)] Action upon state change?

Hi!

I wanted to create an action (execute a shell script) when a certain
test switches to CRIT. Is that possible?

I read the manual about the event console and actions and so far my
impression is, that actions are only possible associated with events.

If I'm wrong, could you point me in the right direction (documentation
link)?

TIA
mad
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Ahmad Siddiq | 14 Apr 04:11 2015
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[Check_mk (english)] Assign multiple services to a group of contacts

Hi all,

I have an OMD site with couple of hundred servers - with a lot of different services. I would like to assign some services to a particular group of notifications recepients - for example - pingtest or diskspace should go to Linux Team, apache-related should go to JBOSS Team and so on.

I have configured contact groups with specific users inside, but I am not sure how to assign multiple services to a group of contacts in an easy way.

Appreciate the help given and thank you in advance.

Thanks. 

--

Best Regards,

Ahmad Siddiq b. Mohd Adnan
Senior System Engineer, Xchanging Malaysia Sdn Bhd
International Award for Young People, Gold Award
LPIC-3, Novell CLA, Novell DCTech, CCENT, Microsoft Certified Professional, MCTS Windows Server 2008
Mobile: +60 17 377-5007| Facebook: https://www.facebook.com/my.sidz

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George Hansper | 13 Apr 03:27 2015
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[Check_mk (english)] FYI: Nagios 4 and livestatus - benefits and caveats

Hi All,

Just a little FYI.

I upgraded to Nagios 4.0.8 late last year and overall the experience was quite positive.
The object config files did not require updating, so it went pretty smoothly.

I did need to update things like notifications and service handler commands that relied on Nagios macros in environment variables, as Nagios 4.x no longer supports these environment variables.

Updating Nagios 3.4 -> 4.0.8 gave us 2 key improvements:

1. No more queue lag

Once the number of services being checked starts to go up, (roughly 600-800 checks per minute), there was a noticeable ‘lag’ between the time the check was scheduled, and the time it was actually run.
This lag was most evident when running external commands, but it was present for ordinary checks, too.
Typically, the lag was about 20s, although it varied from a few seconds to up to 50s.

After updating to Nagios 4.0.8, the queue lag is consistently between 0-1 seconds

2. No more ‘cumulative scheduling’ of checks

Nagios would schedule a new check, whenever the check was run.
What I noticed was that when a check was manually rescheduled, it would run in addition to the regular check and both checks would be rescheduled at the normal check_interval forever more. Actually, ‘forever' = 'until the next restart of Nagios’, which is fairly frequent due to config changes anyway.

I did need to patch Nagios 4.0.8 a little, to get rid of excessive logging, and there was one problem I noticed in particular which was an interaction with the (excellent) livestatus broker module:

When rotating log files, livestatus would insert a message like this:

[1428065999] TIMEPERIOD TRANSITION: 24x7;1;1

One such message for each configured timeperiod. Except that instead of one message, I was getting hundreds. The same was observed for 

[1428065999] SERVICE DOWNTIME ALERT: srv-test01;system-snmp;STARTED;Multiple Downtime Comments

Ie hundreds of such messages repeated, when there should only be one (per transition).
The fix is a combination of the these two:
However, I would suggest (as per my comment), that the patch for 673 should be:

I thought this information is of particular interest to users of check_mk livestatus, and hope that it is helpful.

All in all, the net result of the 4.0.8 upgrade was a Nagios system which was much more responsive to interactive commands, and I would recommend this upgrade to be worthwhile.
I have a Debian package for Nagios 4.0.8, which I can make available.

Regards,

George Hansper | Senior Linux Systems Administrator
  
Infoxchange Australia  | www.infoxchange.net.au  | 33 Elizabeth Street, Richmond Victoria 3121 
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Craig Cook | 9 Apr 22:05 2015
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[Check_mk (english)] REDIS check

I have fixed my REDIS check.

You can install it from here:

https://github.com/cncook001/check_mk/tree/master/redis

Monitors REDIS queues
Trends queue size
Can set Warning thresholds on a Queue
Can set Critical thresholds on a Queue
Includes WATO configuration
Includes man page

Thanks

Craig
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Craig Cook | 9 Apr 21:09 2015
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[Check_mk (english)] MySQL checks

Speaking of MySQL checks.  This should be ready to test.

https://github.com/cncook001/check_mk/tree/master/mysql

This replaces the core check_mk mysql check. (After more testing I will submit a request to the check_mk project)

New features:
command counters (number of selects, commit's, etc)
Replaced innodb checks.

Future feature:
Slave replication lag checks

Let me know if anyone wants to be able to set WARN/CRIT on any of these counters and I will add support.

Craig
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Gmane