The Zabbix queue
Ever since Zabbix was born, one of the key performance indicators has been the item's queue. If the queue is flowing and is not accumulating items, it means that Zabbix is performing well. Just like that? Almost! The queue is certainly one of Zabbix's performance indicators if our focus is only on data collection. A low queue means that Zabbix can make their collections without difficulty, but a high queue is no single indicator to pinpoint performance problems with Zabbix. However, the queue is an indicator that something is not right, which could be a problem with Zabbix, a host, a host group, or even a part of a network. A high queue will require more efforts and work from Zabbix. This high queue can be the cause of performance problems and not the consequence. It is in this view that, in my understanding, the importance of keeping the queue of Zabbix under control lies. There are specific internal items for monitoring the Zabbix queue.
One of them is zabbix[queue,<...
