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What are the healthcheck parameters used for ELB


healthy-threshold

   How many consecutive successful checks before marking node as InService

unhealthy-threshold

  How many consecutive failed checks before marking node as OutOfService

Example: The Unhealthy Threshold is set to 2 by default – this means that after two failed ping health 
checks the instance will be marked as unhealthy and the web server will be disabled in the ELB configuration.
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