Thold disappear silently, help!

[Plutopath]

Oddly enough, all the thresholds set by hand will disappear silently, no warning at all!
And then I reset the thresholds one by one, from cpu_idle to mem_free, and they work well, there is red color warning and there is green normal, but some day when I click to the page graph_thold.php , it is clean as no thresholds is set !
The same thing have happened serval times before I lose my faith.

I notice that the function delete_old_thresholds() is called in serval places, would it be the badman?
Anybody has any idea?

---Sofware enviroment---
OS:Redhat AS 4
Cacti:0.8.6.h
Thold:2.7
polling method:cmd.php

Plutopath

[cigamit]

Oddly enough, all the thresholds set by hand will disappear silently, no warning at all!
And then I reset the thresholds one by one, from cpu_idle to mem_free, and they work well, there is red color warning and there is green normal, but some day when I click to the page graph_thold.php , it is clean as no thresholds is set !
The same thing have happened serval times before I lose my faith.

I notice that the function delete_old_thresholds() is called in serval places, would it be the badman?
Anybody has any idea?

---Sofware enviroment---
OS:Redhat AS 4
Cacti:0.8.6.h
Thold:2.7
polling method:cmd.php

Plutopath

Thresholds are linked to the devices's datasources, so if you recreate any of them, you also have to create the thresholds for the new datasources.

[Plutopath]

Thresholds are linked to the devices's datasources, so if you recreate any of them, you also have to create the thresholds for the new datasources.

I have deleted some but not all datasources, but all the threshholds are gone. Not a single one is left. And I have no idea when and how they are gone.