Monitoraggio ZFS in Zabbix: Difference between revisions

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=Monitoraggio POOLs e Datasets=
=Monitoraggio POOLs e Datasets=
*Sul client, scaricare il file e scompattarlo
cd /tmp && \
wget "https://share.zabbix.com/index.php?option=com_mtree&task=att_download&link_id=350&cf_id=38" -O ZFSonLinux.zip && \
unzip ZFSonLinux.zip && \
cd ZFSonLinux


* Installare i files
* Installare i files
  mv ZFSonLinux_sudo_rules /etc/sudoers.d/zabbix-zfs-on-linux
 
  mv ZFSonLinux_userparameters.conf /etc/zabbix/zabbix_agentd.d/zfs-on-linux.conf
  wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/sudoers.d/zabbix-zfs-on-linux" -O /etc/sudoers.d/zabbix-zfs-on-linux
 
  chmod 0440 /etc/sudoers.d/zabbix-zfs-on-linux
 
  wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/zabbix/zabbix_agentd.d/zfs-on-linux.conf" -O /etc/zabbix/zabbix_agentd.d/zfs-on-linux.conf
 
chmod 0440 /etc/zabbix/zabbix_agentd.d/zfs-on-linux.conf


* Verificare se i comandi funzionano (DATA è il nome di un pool zfs presente):
* Verificare se i comandi funzionano (DATA è il nome di un pool zfs presente):
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  zabbix_get -s 192.168.1.10 -k zfs.zpool.health[DATA]
  zabbix_get -s 192.168.1.10 -k zfs.zpool.health[DATA]


* Importare il template ZFSonLinux_template.xml suls erver ed assegnare il template all'host
* Importare il template [https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/ZFSonLinux_template.xml ZFSonLinux_template.xml] sul server ed assegnare il template all'host
 
  ZFSonLinux
  ZFSonLinux


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=Monitoraggio degli snapshot=
=Monitoraggio degli snapshot=


* Per far questo, occorre utilizzare la versione customizzata del template Zabbix
* Installare gli script
 
* Disabilitare il tab completion per poter creare gli script:
bind '\C-i:self-insert'
* Creare lo script di collecting dei timestamp deglis napshot:


  mkdir -p /etc/zabbix/scripts
  mkdir -p /etc/zabbix/scripts


<pre>
wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/zabbix/scripts/zabbix-zfs-snapshot" -O /etc/zabbix/scripts/zabbix-zfs-snapshot
cat > /etc/zabbix/scripts/zabbix-zfs-snapshot <<'EOFile'
#!/bin/bash
# Delay maximum half an hour
#set -x
if [ -z "$1" ]
then
sleep $((RANDOM % 1800))
fi


# Clear temp file
/bin/rm -f /tmp/zfs-snapshot.dat.tmp
# Append lines in temp file
for DATASET in $(/usr/bin/sudo /sbin/zfs list \
| grep -v '^NAME' \
| /usr/bin/tr -s ' ' | /usr/bin/cut -f 1 --delimiter=' ')
do
TIMESTAMP=$(/usr/bin/sudo \
/sbin/zfs get creation -Hpr -t snapshot  ${DATASET} \
| /usr/bin/cut -f 3 | /usr/bin/sort -n | /usr/bin/tail -n 1)
if [ -z "$TIMESTAMP" ]
then
DATETIME=""
else
DATETIME=$(/bin/date -d @$TIMESTAMP +"%Y-%m-%d %H:%M:%S")
fi
echo ${DATASET} $TIMESTAMP $DATETIME >> /tmp/zfs-snapshot.dat.tmp
done
# Substitute real file with temp file
mv /tmp/zfs-snapshot.dat.tmp /var/lib/zabbix/zfs-snapshot.dat
EOFile
</pre>


  chmod +x /etc/zabbix/scripts/zabbix-zfs-snapshot
  chmod +x /etc/zabbix/scripts/zabbix-zfs-snapshot
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* Abilitarlo in cron:
* Abilitarlo in cron:


<pre>
wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/cron.d/zabbix-zfs-snapshot" -O /etc/cron.d/zabbix-zfs-snapshot
cat > /etc/cron.d/zabbix-zfs-snapshot <<'EOFile'
# Creates zfs snapshot time creation log file
#
#min    hours  DayOfMonth      Month  DayOfWeek user    command
# Incr backup mon-tue
0      *      *              *      *        zabbix /etc/zabbix/scripts/zabbix-zfs-snapshot
EOFile
</pre>
 
* Impostare il sudoers
<pre>
cat > /etc/sudoers.d/zabbix-zfs-snapshot <<EOFile
Defaults:zabbix !requiretty
 
zabbix ALL=(ALL) NOPASSWD: /sbin/zfs
EOFile
</pre>


* Definire gli userparamters:
<pre>
cat > /etc/zabbix/zabbix_agentd.d/zfs-snapshot.conf <<'EOFile'
UserParameter=zfs.snapshot.time[*],/bin/cat /var/lib/zabbix/zfs-snapshot.dat | grep $1 | /usr/bin/cut  --delimiter=' ' -f 2
EOFile
</pre>


* Assicurarsi che ci sia la homedir di zabbix:
* Assicurarsi che ci sia la homedir di zabbix:
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* Riavviare zabbix agent
* Riavviare zabbix agent
  systemctl restart zabbix-agent.service
  systemctl restart zabbix-agent.service
* Riabilitare il tab completion:
bind '\C-i:complete'


* Provare a lanciare manualmente lo script per il collecting dei timestamp:
* Provare a lanciare manualmente lo script per il collecting dei timestamp:
Line 145: Line 83:
  1545069600
  1545069600


* Disablitare le item per i Dataset che nons i vogliono verificare
* Disabilitare le item per i Dataset che non si vogliono verificare


* Di default la snapsht age è di 2 ore (7200 secondi). Per impostare age diverse, creare a macro nell'host:
* Di default la snapshot age è di 2 ore (7200 secondi). Per impostare age diverse, creare a macro nell'host:
  {$ZFS_SNAPSHOT_AGE:"BACKUP/znapzend-xopta-mysql"}
  {$ZFS_SNAPSHOT_AGE:"BACKUP/znapzend-xopta-mysql"}
  -> Numero di secondi di età dello snapshot
  -> Numero di secondi di età dello snapshot


=Riferimenti=
=Riferimenti=
*[https://github.com/GabrieleV/zabbix-zfs-on-linux GabrieleV/zabbix-zfs-on-linux]
*[http://dnaeon.github.io/monitoring-your-zfs-pools-in-zabbix/ Monitoring your ZFS pools in Zabbix – Marin Atanasov Nikolov – A place about Open Source Software, Operating Systems and some random thoughts]
*[http://dnaeon.github.io/monitoring-your-zfs-pools-in-zabbix/ Monitoring your ZFS pools in Zabbix – Marin Atanasov Nikolov – A place about Open Source Software, Operating Systems and some random thoughts]
*[https://share.zabbix.com/operating-systems/linux/zfs-on-linux Zabbix Share - ZFS on Linux]
*[https://share.zabbix.com/operating-systems/linux/zfs-on-linux Zabbix Share - ZFS on Linux]
*[https://superuser.com/questions/637574/how-to-cat-eof-arbitrary-text-data-from-clipboard linux - How to cat <<'EOF' arbitrary text data from clipboard - Super User]
*[https://superuser.com/questions/637574/how-to-cat-eof-arbitrary-text-data-from-clipboard linux - How to cat <<'EOF' arbitrary text data from clipboard - Super User]

Latest revision as of 14:39, 8 March 2019

Monitoraggio POOLs e Datasets

  • Installare i files
wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/sudoers.d/zabbix-zfs-on-linux" -O /etc/sudoers.d/zabbix-zfs-on-linux

chmod 0440 /etc/sudoers.d/zabbix-zfs-on-linux

wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/zabbix/zabbix_agentd.d/zfs-on-linux.conf" -O /etc/zabbix/zabbix_agentd.d/zfs-on-linux.conf

chmod 0440 /etc/zabbix/zabbix_agentd.d/zfs-on-linux.conf
  • Verificare se i comandi funzionano (DATA è il nome di un pool zfs presente):
sudo -u zabbix /usr/bin/sudo /sbin/zpool list -H -o health DATA
  • Riavviare zabbix_agent
systemctl restart zabbix-agent.service
  • Dal server o dal prozy zabbix, verificare che le keys siano supportate:
zabbix_get -s 192.168.1.10 -k zfs.zpool.health[DATA]

ZFSonLinux
  • Definire la Regex in
Administration / General/ Regular Expression

Name: ZFS Fileset
Expressions
  Expression type: Character string included
  Expression: /

Monitoraggio degli snapshot

  • Installare gli script
mkdir -p /etc/zabbix/scripts

wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/zabbix/scripts/zabbix-zfs-snapshot" -O /etc/zabbix/scripts/zabbix-zfs-snapshot



chmod +x /etc/zabbix/scripts/zabbix-zfs-snapshot
  • Abilitarlo in cron:
wget "https://raw.githubusercontent.com/GabrieleV/zabbix-zfs-on-linux/master/etc/cron.d/zabbix-zfs-snapshot" -O /etc/cron.d/zabbix-zfs-snapshot


  • Assicurarsi che ci sia la homedir di zabbix:
mkdir -p /var/lib/zabbix
chown zabbix:zabbix /var/lib/zabbix
  • Riavviare zabbix agent
systemctl restart zabbix-agent.service
  • Provare a lanciare manualmente lo script per il collecting dei timestamp:
 sudo -u zabbix /etc/zabbix/scripts/zabbix-zfs-snapshot -i
  • Controllare se ci sono i timestamp, ad esempio:
cat /var/lib/zabbix/zfs-snapshot.dat 

BACKUP 1545069600 2018-12-17 19:00:00
BACKUP/backuppc
BACKUP/znapzend-emip-home 1545069600 2018-12-17 19:00:00
BACKUP/znapzend-emip-mysql 1545069600 2018-12-17 19:00:00
BACKUP/znapzend-kinsi-home 1542810600 2018-11-21 15:30:00
BACKUP/znapzend-xopta-dati 1545069600 2018-12-17 19:00:00
BACKUP/znapzend-xopta-files 1545069600 2018-12-17 19:00:00
BACKUP/znapzend-xopta-mysql 1545069600 2018-12-17 19:00:00
DATA 1545069600 2018-12-17 19:00:00
DATA/dati 1545069600 2018-12-17 19:00:00
DATA/files 1545069600 2018-12-17 19:00:00
DATA/mysql 1545069600 2018-12-17 19:00:00
  • Dal server zabbix o proxy monitorante, verificare se si leggono i timestamp:
zabbix_get -s machinename -k zfs.snapshot.time['BACKUP/znapzend-xopta-mysql']

1545069600
  • Disabilitare le item per i Dataset che non si vogliono verificare
  • Di default la snapshot age è di 2 ore (7200 secondi). Per impostare age diverse, creare a macro nell'host:
{$ZFS_SNAPSHOT_AGE:"BACKUP/znapzend-xopta-mysql"}
-> Numero di secondi di età dello snapshot

Riferimenti

Retrieved from "https://kb.rvmgroup.it/index.php?title=Monitoraggio_ZFS_in_Zabbix&oldid=10241"