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Linuxfabrik / monitoring-plugins

220+ check plugins for Icinga and other Nagios-compatible monitoring applications. Each plugin is a standalone command line tool (written in Python) that provides a specific type of check.
https://linuxfabrik.ch
The Unlicense
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cpu-usage: cpu usage not working with nagios user. #620

Closed nguyenhuukhoi closed 2 years ago

nguyenhuukhoi commented 2 years ago

This issue respects the following points:

Bug description

When excute : /usr/lib64/nagios/plugins/cpu-usage --count 5 --critical 90 --warning 80 with "nagios" user on Icinga2 server. I can use this plugin with other user.

Steps to reproduce - Plugin call

/usr/lib64/nagios/plugins/cpu-usage --count 5 --critical 90 --warning 80
with "nagios" user on Icinga2 master

Steps to reproduce - Plugin Version

cpu-usage: v2022071801 by Linuxfabrik GmbH, Zurich/Switzerland

Steps to reproduce - Data

Query failed: INSERT INTO "perfdata" (cpu_usage,guest,guest_nice,iowait,irq,nice,softirq,steal,system,user) VALUES (:cpu_usage,:guest,:guest_nice,:iowait,:irq,:nice,:softirq,:steal,:system,:user);, Error: attempt to write a readonly database, Data: {'cpu_usage': 0.2, 'guest': 0.0, 'guest_nice': 0.0, 'iowait': 0.0, 'irq': 0.0, 'nice': 0.0, 'softirq': 0.0, 'steal': 0.0, 'system': 0.1, 'user': 0.1}

Python version

Python 3

Environment

Ubuntu 22.04 Linux 5.15.0-48-generic #54-Ubuntu SMP Fri Aug 26 13:26:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Application

Icinga2 Build information: Compiler: GNU 11.2.0 Build host: runner-hh8q3bz2-project-298-concurrent-0 OpenSSL version: OpenSSL 3.0.2 15 Mar 2022

Python modules

Package Version

antiorm 1.2.1 attrs 21.2.0 Automat 20.2.0 Babel 2.8.0 bcrypt 3.2.0 blinker 1.4 certifi 2020.6.20 chardet 4.0.0 click 8.0.3 cloud-init 22.2 colorama 0.4.4 command-not-found 0.3 configobj 5.0.6 constantly 15.1.0 cryptography 3.4.8 db 0.1.1 dbus-python 1.2.18 distro 1.7.0 distro-info 1.1build1 gpg 1.16.0-unknown httplib2 0.20.2 hyperlink 21.0.0 idna 3.3 importlib-metadata 4.6.4 incremental 21.3.0 jeepney 0.7.1 Jinja2 3.0.3 jsonpatch 1.32 jsonpointer 2.0 jsonschema 3.2.0 keyring 23.5.0 launchpadlib 1.10.16 lazr.restfulclient 0.14.4 lazr.uri 1.0.6 MarkupSafe 2.0.1 more-itertools 8.10.0 netifaces 0.11.0 nftables 0.1 oauthlib 3.2.0 pexpect 4.8.0 pip 22.0.2 ptyprocess 0.7.0 pyasn1 0.4.8 pyasn1-modules 0.2.1 PyGObject 3.42.1 PyHamcrest 2.0.2 PyJWT 2.3.0 pyOpenSSL 21.0.0 pyparsing 2.4.7 pyrsistent 0.18.1 pyserial 3.5 python-apt 2.3.0+ubuntu2.1 python-debian 0.1.43ubuntu1 pytz 2022.1 PyYAML 5.4.1 requests 2.25.1 SecretStorage 3.3.1 service-identity 18.1.0 setuptools 59.6.0 six 1.16.0 sos 4.3 ssh-import-id 5.11 systemd-python 234 Twisted 22.1.0 ubuntu-advantage-tools 27.10 ubuntu-drivers-common 0.0.0 ufw 0.36.1 unattended-upgrades 0.1 urllib3 1.26.5 wadllib 1.3.6 wheel 0.37.1 xkit 0.0.0 zipp 1.0.0 zope.interface 5.4.0

Additional info

No response

NavidSassan commented 2 years ago

Hi, the problem is probably that the sqlite database for caching values was created by a different user (for example while running the plugin as root). Now the nagios user has no permissions to write to it. You can try removing it (whatever you'll find on your system, one of those):

rm -f /tmp/linuxfabrik-monitoring-plugins-cpu-usage.db
rm -f /tmp/linuxfabrik-plugin-cache.db
rm -f /tmp/cpu-usage.db
nguyenhuukhoi commented 2 years ago

Hi, the problem is probably that the sqlite database for caching values was created by a different user (for example while running the plugin as root). Now the nagios user has no permissions to write to it. You can try removing it (whatever you'll find on your system, one of those):

rm -f /tmp/linuxfabrik-monitoring-plugins-cpu-usage.db
rm -f /tmp/linuxfabrik-plugin-cache.db
rm -f /tmp/cpu-usage.db

Hello. You are right. I followed your guide and it worked. I feel strange why only this plugin have .db files.

markuslf commented 2 years ago

Only the plugins that need data for comparisons from the past have db-files.

nguyenhuukhoi commented 2 years ago

Thank you much.