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ClickHouse Disk Space Low on Default
warning

Description Disk space on default is below 20%.
Query for 2m 
>>>
	
				
					
				
			
				
					 / (
				
			
				
					
				
			
				
					 + 
				
			
				
					
				
			
				
					) * 100 < 20
Query Explanation

The query computes the free‑disk percentage on ClickHouse’s default volume as ClickHouseAsyncMetrics_DiskAvailable_default / (ClickHouseAsyncMetrics_DiskAvailable_default + ClickHouseAsyncMetrics_DiskUsed_default) * 100 and checks if it is below 20 %. The alert triggers whenever less than 20 % of that disk is free.

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