Impact of using Elasticsearch as historical database in Zabbix

[NewInZabbix2025]

Hi everyone,

Currently, I am using Zabbix with MySQL to store monitoring data. I’m evaluating the possibility of switching the historical database to Elasticsearch and would like to hear the community’s experience or recommendations.

My main questions are:

1. Would data ingestion and queries still be real-time, or would there be significant delays?
2. Could there be latency in metric and trigger visualization?
3. What additional configuration or hardware requirements would be needed to maintain good performance?
4. Are there any limitations or issues with dashboards, alerts, or other Zabbix functionalities when using Elasticsearch?
5. How does all of the above behave as the number of hosts and monitored metrics grows, using Elasticsearch as the database for collected query data?

Any comments, experiences, or references to documentation would be very helpful.

Thanks in advance!

[cyber]

https://www.zabbix.com/documentation/7.0/en/manual/appendix/install/elastic_search_setup

As it says, there wil be no trends, so you need more storage for data.Without trends longer queries will take more time I would assume (yea I know, assume will make an ass of u and me... ), but maybe Elastic somehow manages that..
And it also (still) says, that support is experimental... couple of versions ago we tested for a while, but decided to not use it, due to experimental nature of this... I guess it is still kind of a pet project there, not reached full support... Still happy with PG+TS.