Hi,

Currently am having a cluster with 4 nodes provisioned in Aws 
Ec2. Occasionally there were some issue happened like disk 
space utilization and cpu utilization, which impacted the cluster, then 
manually add new disk or create additional nodes for handling load.

I was investigating if there is an automated option, something like 
 elasticsearch cluster if there is an high disk utilization, or other 
option like horizontal scaling for high cpu issue(like changing the 
instance type to a higher instance capacity with cpu/memory).

There is an Autoscale option from Aws services for high cpu utilization, 
but just thinking if there is any other options available from cluster 
level.

Am trying to build  a solution to avoid any downtime. Let me know if anyone 
have any approach to handle these and possible impacts doing so.  
Note: understand adding one more data nodes will re-balance the shards in 
the cluster.

Regards
John

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