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SOA-C03 - Coggle Diagram
SOA-C03
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EC2
Placement Groups
Spread: high availability, fault isolation, eg: db cluster, kafka brokers, AD DCs
Partition: topology-aware fault isolation, eg: HDFS, cassandra, kafka, HBase
Cluster: low latency, high throughput, eg: HPC, ML training, big data
SSH access: SSM Session Manager NO PUBLIC INTERNET, EC2 Instance Connect Endpoint allow port 22, temporary SSH key
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Elastic Load Balancer (ELB)
routing algorithms: Round Robin, Least Outstanding Requests, Flow hash
GWLB: layer 3 IP, cross-zone OFF
NLB: layer 4 TCP/UDP, cross-zone default OFF, deregistration delay
ALB: layer 7 HTTP/ HTTPS, cross-zone load balacing ENABLED by default, app-based cookie (custom cookie) canNOT use prefix AWSALB, deregistration delay, slow start in target group
CLB: deprecated, cross-zone ON via console, OFF via API/CLI, SurgeQueue, connection draining