We have had an issue for a while now, beginning after upgrading our installation from 6.4 to 7.0.
We migraded from mariadb db to postgre + timescaledb in the same process - So not sure if it's caused by zabbix server upgrade or db migration.
But some of our graphs are completely useless, and never loads. Like this:

Our Zabbix frontend server looks like this while this is loading (never stops before closing the web page)
There's no apparent errors or performance bottlenecks on our DB server while this is ongoing.
I have tried following the steps described in: https://www.zabbix.com/forum/zabbix-...-php-fpm/page2
But this only results in php-fpm being limited to fewer processes so it doesn't utilize the entire cpu of the server. The graph is still never showed.
Item configuration looks fairly default to us (global overrides are 7d history, 720d trends):
Anyone experienced something similar?
We migraded from mariadb db to postgre + timescaledb in the same process - So not sure if it's caused by zabbix server upgrade or db migration.
But some of our graphs are completely useless, and never loads. Like this:
Our Zabbix frontend server looks like this while this is loading (never stops before closing the web page)
There's no apparent errors or performance bottlenecks on our DB server while this is ongoing.
I have tried following the steps described in: https://www.zabbix.com/forum/zabbix-...-php-fpm/page2
But this only results in php-fpm being limited to fewer processes so it doesn't utilize the entire cpu of the server. The graph is still never showed.
Item configuration looks fairly default to us (global overrides are 7d history, 720d trends):
Anyone experienced something similar?