====== Zabbix - Errors ======

===== Zabbix Server =====

==== The maximum number of concurrent checks per worker has been reduced to 306 ====

<code - /var/log/zabbix/zabbix_server.log>
78526:20240604:124813.695 for a discovery process with 2 workers, the user limit of 1024 file descriptors is insufficient. The maximum number of concurrent checks per worker has been reduced to 306
</code>

Check current configuration.
<code bash>
systemctl show zabbix-server.service | grep LimitNOFILE
</code>

<code - Example>
root@riley:~# systemctl show zabbix-server.service | grep LimitNOFILE
LimitNOFILE=1024
LimitNOFILESoft=1024
</code>

Change limit.
<code bash>
mkdir -p /etc/systemd/system/zabbix-server.service.d/
cat >/etc/systemd/system/zabbix-server.service.d/filelimit.conf <<EOF
[Service]
LimitNOFILE=102400
EOF
systemctl daemon-reload
systemctl restart zabbix-server.service
</code>

Check current configuration.
<code bash>
systemctl show zabbix-server.service | grep LimitNOFILE
</code>

<code - Example>
root@riley:~# systemctl show zabbix-server.service | grep LimitNOFILE
LimitNOFILE=102400
LimitNOFILESoft=102400
</code>