Elasticsearch disk space low
warning

Description The disk usage is over 80%
Query for 2m
>>>
	
				
					
				
			
				
					 / 
				
			
				
					
				
			
				
					 * 100 < 20
				
			
    
Query Explanation

The query divides elasticsearch_filesystem_data_available_bytes by elasticsearch_filesystem_data_size_bytes, multiplies by 100 to get the free‑space percentage, and fires when this value is < 20%, meaning more than 80 % of the Elasticsearch data disk is used.

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