Alert Configuration on Ambari

[#1]

How to adjust thresholds on Ambari alerts?

For example, the following Ambari Agent Disk Usage alert has 50% WARNING and 80% CRITICAL threasholds but what do i need to do if i would like to make 60% usage as CRITICAL?

This host-level alert is triggered if the amount of disk space used on a host goes above specific thresholds. The default values are 50% for WARNING and 80% for CRITICAL.

and also can i make these alerts specific to mount/volume on Ambari host server?

Thanks,

[#2]

for my questions : Yes the alert_definition can be updated using a PUT api call.

[#3]

@Neeraj Sabharwal

I tried changing the description from the ambari UI but it didn't work. Then I tried modifying the alert_disk_space.py script with PERCENT_USED_WARNING_DEFAULT = 60 and restarted my ambari server. but still I can't see the changes from the UI. And my alert which got generated for 50% utilization still exist. Please advise.