{"type":"excalidraw","version":2,"source":"https://AwesomeSystemDesign.dev","elements":[{"angle":0,"strokeColor":"#6577aa","backgroundColor":"#eef1fc","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":16,"y":16,"width":288,"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":36,"y":35.7,"width":248,"height":28.6,"fontSize":22,"fontFamily":1,"text":"TAO Client (SDK)","originalText":"TAO Client (SDK)","textAlign":"left","verticalAlign":"middle","containerId":"shape-0","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":1}},{"angle":0,"strokeColor":"#6577aa","backgroundColor":"#eef1fc","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-2"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-3"},{"type":"arrow","id":"shape-4"}],"updated":0,"link":null,"locked":false,"id":"shape-2","type":"rectangle","seed":187,"x":16,"y":128,"width":288,"height":68,"customData":{"revealStep":2}},{"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-2"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-3","type":"text","seed":260,"x":36,"y":147.7,"width":248,"height":28.6,"fontSize":22,"fontFamily":1,"text":"TAO Client (SDK)","originalText":"TAO Client (SDK)","textAlign":"left","verticalAlign":"middle","containerId":"shape-2","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":2}},{"angle":0,"strokeColor":"#6577aa","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":2,"strokeStyle":"solid","roughness":0.4,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-2"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-4","type":"arrow","seed":333,"x":36,"y":210,"width":0,"height":28,"points":[[0,0],[0,28]],"lastCommittedPoint":null,"startBinding":{"elementId":"shape-2","focus":0,"gap":14},"endBinding":{"elementId":"shape-5","focus":0,"gap":14},"startArrowhead":null,"endArrowhead":"arrow","elbowed":false,"customData":{"revealStep":2}},{"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-2"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-6"},{"type":"arrow","id":"shape-4"}],"updated":0,"link":null,"locked":false,"id":"shape-5","type":"rectangle","seed":406,"x":16,"y":252,"width":288,"height":121.8,"customData":{"revealStep":2}},{"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-2"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-6","type":"text","seed":479,"x":36,"y":270,"width":248,"height":85.8,"fontSize":22,"fontFamily":1,"text":"TAO Cache (Leaf)\n(thousands of\nservers)","originalText":"TAO Cache (Leaf)\n(thousands of\nservers)","textAlign":"left","verticalAlign":"middle","containerId":"shape-5","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":2}},{"angle":0,"strokeColor":"#6577aa","backgroundColor":"#eef1fc","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-8"},{"type":"arrow","id":"shape-9"}],"updated":0,"link":null,"locked":false,"id":"shape-7","type":"rectangle","seed":552,"x":16,"y":417.8,"width":288,"height":121.8,"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-8","type":"text","seed":625,"x":36,"y":435.8,"width":248,"height":85.8,"fontSize":22,"fontFamily":1,"text":"TAO Cache (Leaf)\n(thousands of\nservers)","originalText":"TAO Cache (Leaf)\n(thousands of\nservers)","textAlign":"left","verticalAlign":"middle","containerId":"shape-7","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":3}},{"angle":0,"strokeColor":"#6577aa","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":2,"strokeStyle":"solid","roughness":0.4,"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-9","type":"arrow","seed":698,"x":36,"y":553.6,"width":0,"height":28,"points":[[0,0],[0,28]],"lastCommittedPoint":null,"startBinding":{"elementId":"shape-7","focus":0,"gap":14},"endBinding":{"elementId":"shape-10","focus":0,"gap":14},"startArrowhead":null,"endArrowhead":"arrow","elbowed":false,"customData":{"revealStep":3}},{"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-3"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-11"},{"type":"arrow","id":"shape-9"}],"updated":0,"link":null,"locked":false,"id":"shape-10","type":"rectangle","seed":771,"x":16,"y":595.6,"width":288,"height":68,"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-11","type":"text","seed":844,"x":36,"y":615.3000000000001,"width":248,"height":28.6,"fontSize":22,"fontFamily":1,"text":"TAO Cache (Root)","originalText":"TAO Cache (Root)","textAlign":"left","verticalAlign":"middle","containerId":"shape-10","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":3}},{"angle":0,"strokeColor":"#6577aa","backgroundColor":"#eef1fc","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-4"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-13"},{"type":"arrow","id":"shape-14"}],"updated":0,"link":null,"locked":false,"id":"shape-12","type":"rectangle","seed":917,"x":16,"y":707.6,"width":288,"height":68,"customData":{"revealStep":4}},{"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-4"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-13","type":"text","seed":990,"x":36,"y":727.3000000000001,"width":248,"height":28.6,"fontSize":22,"fontFamily":1,"text":"TAO Cache (Root)","originalText":"TAO Cache (Root)","textAlign":"left","verticalAlign":"middle","containerId":"shape-12","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":4}},{"angle":0,"strokeColor":"#6577aa","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":2,"strokeStyle":"solid","roughness":0.4,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-4"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-14","type":"arrow","seed":1063,"x":36,"y":789.6,"width":0,"height":28,"points":[[0,0],[0,28]],"lastCommittedPoint":null,"startBinding":{"elementId":"shape-12","focus":0,"gap":14},"endBinding":{"elementId":"shape-15","focus":0,"gap":14},"startArrowhead":null,"endArrowhead":"arrow","elbowed":false,"customData":{"revealStep":4}},{"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-4"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-16"},{"type":"arrow","id":"shape-14"}],"updated":0,"link":null,"locked":false,"id":"shape-15","type":"rectangle","seed":1136,"x":16,"y":831.6,"width":288,"height":121.8,"customData":{"revealStep":4}},{"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-4"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-16","type":"text","seed":1209,"x":36,"y":849.6,"width":248,"height":85.8,"fontSize":22,"fontFamily":1,"text":"MySQL (Storage)\n(sharded by\nobject_id)","originalText":"MySQL (Storage)\n(sharded by\nobject_id)","textAlign":"left","verticalAlign":"middle","containerId":"shape-15","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":4}},{"angle":0,"strokeColor":"#6577aa","backgroundColor":"#eef1fc","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-5"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-18"}],"updated":0,"link":null,"locked":false,"id":"shape-17","type":"rectangle","seed":1282,"x":16,"y":997.4,"width":288,"height":1008.4,"customData":{"revealStep":5}},{"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-5"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-18","type":"text","seed":1355,"x":36,"y":1015.4,"width":248,"height":972.4,"fontSize":22,"fontFamily":1,"text":"Facebook TAO (The\nAssociations and\nObjects store)\n\nProduction graph\nstore serving the\nFacebook social\ngraph:\n• Billions of nodes,\ntrillions of edges\n• Billions of\nreads/sec, millions of\nwrites/sec\n\nArchitecture:\n\nKey insights:\n• Graph operations\nare READS (99.8%)\n• In-memory cache is\nthe primary serving\nlayer\n• MySQL is the\ndurable persistence\nlayer\n• Write-through: write\nto MySQL, then\ninvalidate/update\ncache\n• Scale reads by\nadding cache servers\n(near-infinite)\n• Scale writes by\nsharding MySQL","originalText":"Facebook TAO (The\nAssociations and\nObjects store)\n\nProduction graph\nstore serving the\nFacebook social\ngraph:\n• Billions of nodes,\ntrillions of edges\n• Billions of\nreads/sec, millions of\nwrites/sec\n\nArchitecture:\n\nKey insights:\n• Graph operations\nare READS (99.8%)\n• In-memory cache is\nthe primary serving\nlayer\n• MySQL is the\ndurable persistence\nlayer\n• Write-through: write\nto MySQL, then\ninvalidate/update\ncache\n• Scale reads by\nadding cache servers\n(near-infinite)\n• Scale writes by\nsharding MySQL","textAlign":"left","verticalAlign":"middle","containerId":"shape-17","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":5}}],"appState":{"viewBackgroundColor":"#fbfbf8","gridSize":null},"files":{}}