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Nagios "(Host Check Timed Out)" - RESOLVED

Posted 04-30-2015 at 03:26 PM by MensaWater

We had an issue with a few servers showing as CRITICAL in Nagios with"(Host Check Timed Out)" for the host check itself even though all services were displaying as OK.

Today I finally realized the issue is that in our hosts.cfg for there is a definition for "generic" that includes:
check_command check-host-alive

In our commands.cfg check-host-alive was defined to run check_ping.

However, these hosts were in our DMZ and...
Guru
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Views 163 Comments 0 MensaWater is offline
Old
Rating: 6 votes, 5.00 average.

timer.c:331: fatal error: RUNTIME_CHECK(isc_time_no w((&now)) == 0) failed

Posted 03-09-2015 at 10:34 AM by MensaWater

Posting this because all I found on line were multiple links to a single google post about this error.

On a RHEL5.10 system this morning I did a "dig" and got the error:
timer.c:331: fatal error: RUNTIME_CHECK(isc_time_now((&now)) == 0) failed

Clearly the message is related to time and in the US this past weekend we switched to daylight saving time (in my case we went from EST to EDT). Initially I thought it was because the system I was on didn't...
Guru
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Views 178 Comments 0 MensaWater is offline
Old

Nagios check_disk works at local host but not via check_nrpe

Posted 04-25-2014 at 01:59 PM by MensaWater

We ran into something we've not seen here before.

We run a Nagios master server with Nagios Core 3.3.1.
We have nrpe version 2.12 on the servers being monitored (clients) and use check_nrpe v2.12 from the master to interrogate them.
The version of check_disk on the clients is v1.4.14 (nagios-plugins 1.4.14).

Typically we setup the nrpe.cfg on the clients to monitor each individual disk by its device name e.g.
command[check_opt_app_logs]=/usr/local/nagios/libexec/check_disk...
Guru
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Views 578 Comments 0 MensaWater is offline
Old

UDF mount works on RHEL6 & CentOS6 but not RHEL5 & CentOS5

Posted 02-05-2014 at 01:32 PM by MensaWater
Updated 02-05-2014 at 03:00 PM by MensaWater

On receiving an install media today I tried mount it on my RHEL5 system:

mount /dev/hdc /mnt/cdrom

But that errored out:
mount: block device /dev/hdc is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/hdc,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

In /var/log/messages I saw:
Feb 5 14:17:05...
Guru
Posted in Uncategorized
Views 347 Comments 0 MensaWater is offline
Old

Dell Dset dependent on version of Dell OpenManage

Posted 02-04-2014 at 04:25 PM by MensaWater

During an issue overnight I attempted to run the latest Dell Dset version 3.5.1 for 64bit on RHEL 6.1. This didn't complete. It just hung.

By doing "ps -ef |grep dset" I was able to see the dset child of the dset bin file I'd kicked off.

By running "lsof -p <pid>" on that child's PID I was able to see it was creating a log for its run in opt/dell/advdiags/dset/report/temp1391539132.89/logs/dset/dset.log (note that the temp# changes on...
Guru
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Views 319 Comments 0 MensaWater is offline

  



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