Mateusz Adam Katana
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Architectures

Elasticsearch - AIOElasticsearch - RolesElasticsearch - RoutingIstio - BaseIstio - Blue/GreenIstio - East/WestKafka - Split-horizon DNSKafka - Separated Controllers / BrokersMongoDB - Replica SetMongoDB - Sharded ClusterMongoDB - Write ConcernRedis - StandaloneRedis - Master / ReplicasRedis - Sentinel (Client)Redis - Sentinel (Services)Redis - Cluster

Elasticsearch - Routing

Country routing keys, load balancer entry nodes, primary shards and replica reads across three data nodes.
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