Overview#

Reliability is a property or level that system is generally functioning properly.As an example an LDAP Server Implementation may answer to a "ping" but not be able to make a Success for a Bind Request.

Reliability implies there is a some level of Fault tolerance

Reliability for Data At Rest is often referred to a Durability

Health-check and Load Balancing#

Instances continuously start, restart and stop because of failures, deployments or autoscaling. These operations makes an instance temporarily or permanently unavailable. For Load Balancing a Health-check should mark the instance as unavailable and Load Balancing should skip unhealthy instances from the routing as they cannot serve requests.!! More Information There might be more information for this subject on one of the following:

• Availability
• Distributed system
• Durability
• Health-check
• Load Balancing
• Non-functional requirement
• Reliable protocol
• Software design
• Stream Control Transmission Protocol
• System Metrics
• Transmission Control Protocol