{"type":"excalidraw","version":2,"source":"https://AwesomeSystemDesign.dev","elements":[{"angle":0,"strokeColor":"#628572","backgroundColor":"#edf5ee","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-1"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-1"}],"updated":0,"link":null,"locked":false,"id":"shape-0","type":"rectangle","seed":41,"x":30,"y":30,"width":420,"height":68,"customData":{"revealStep":1}},{"angle":0,"strokeColor":"#394557","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-1"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-1","type":"text","seed":114,"x":50,"y":52.3,"width":380,"height":23.400000000000002,"fontSize":18,"fontFamily":1,"text":"Durability 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+ min.insync.replicas=2 +\nreplication.factor=3","originalText":"acks=all + min.insync.replicas=2 +\nreplication.factor=3","textAlign":"left","verticalAlign":"middle","containerId":"shape-2","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":2}},{"angle":0,"strokeColor":"#9180ac","backgroundColor":"#f4effb","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-3"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-5"}],"updated":0,"link":null,"locked":false,"id":"shape-4","type":"rectangle","seed":333,"x":30,"y":230.8,"width":503.83480000000003,"height":199.8,"customData":{"revealStep":3}},{"angle":0,"strokeColor":"#394557","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-3"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-5","type":"text","seed":406,"x":50,"y":248.8,"width":463.83480000000003,"height":163.8,"fontSize":18,"fontFamily":1,"text":"Failures survived:\n✅ 1 broker crash → 2 replicas still have data\n✅ 1 disk failure → data on other brokers' disks\n✅ 1 rack failure → rack-aware replica placement\n✅ 1 AZ failure → cross-AZ replication\n❌ 2 simultaneous broker failures (if only 2 ISR)\n❌ All 3 replicas fail simultaneously (catastrophic)","originalText":"Failures survived:\n✅ 1 broker crash → 2 replicas still have data\n✅ 1 disk failure → data on other brokers' disks\n✅ 1 rack failure → rack-aware replica placement\n✅ 1 AZ failure → cross-AZ replication\n❌ 2 simultaneous broker failures (if only 2 ISR)\n❌ All 3 replicas fail simultaneously 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disaster recovery:\n→ MirrorMaker 2 for cross-region replication\n→ RPO: seconds to minutes (async replication lag)\n→ RTO: minutes (manual failover to DR cluster)","originalText":"For disaster recovery:\n→ MirrorMaker 2 for cross-region replication\n→ RPO: seconds to minutes (async replication lag)\n→ RTO: minutes (manual failover to DR cluster)","textAlign":"left","verticalAlign":"middle","containerId":"shape-6","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":4}}],"appState":{"viewBackgroundColor":"#fbfbf8","gridSize":null},"files":{}}