💻 Systemy Rozproszone

Kademlia DHT: XOR-Distance Radar (2D)New📱A 2D radar view of Kademlia's XOR-distance identifier space, with the target key at the… Page Replacement 2D — LRU, FIFO & OptimalNew📱Canvas2D simulator that runs FIFO, LRU, Clock and Optimal page-replacement policies over a… Consistent Hashing: The Hash Ring (2D)New📱2D consistent-hashing lab: place servers and virtual nodes on a hash ring, watch a live… Offline Sync Queue 2D: Write Coalescing & Payload CompactionNew📱2D companion to the 3D offline-first mobile sync model: the same last-write-wins coalescing… Operational Transform 2D: Two Documents, One TruthNew📱A flat, top-down view of two mobile clients editing the same text buffer at once over a… Offline Sync Outbox Queue: 2D Mutation Log & Rollback SimulatorNew📱2D companion to the offline-first sync engine model: watch a persistent outbox queue drain… Merkle Tree Sync 2D: Reconciling Offline-Diverged ReplicasNew📱2D companion to the Merkle-tree anti-entropy sync model: watch two flat hash-tree diagrams… Serverless Cold Start Latency — Swimlane & Latency HistogramNew📱Watch a serverless warm pool of function containers scale up and down under live request… Rolling-Checksum Byte Scanner: Delta Sync in 2DNew📱2D companion to the 3D delta-sync simulator: instead of a 3D block grid floating between a… Resumable Chunked Upload SimulatorNew📱Watch a mobile app upload a large file to cloud storage as parallel chunks over presigned… Edge Offloading: Energy vs Latency SimulatorNew📱Simulate a mobile/IoT device deciding, task by task, whether to process data locally or… Service Discovery: Heartbeat Registry & Stale-Cache FailuresNew📱A 2D service-registry simulator for a mobile backend's microservice cluster: instances… Push Notification Fan-Out at ScaleNew📱Simulate a mobile push-notification fan-out service: a dispatcher spreads a campaign across… Serverless Cold Start Latency SimulatorNew📱Watch a serverless warm pool of function containers scale up and down under live request… Edge Offloading: Energy vs Latency SimulatorNew📱Simulate a mobile/IoT device deciding, task by task, whether to process data locally or… Push Notification Fan-Out at ScaleNew📱Simulate a mobile push-notification fan-out service: a dispatcher spreads a campaign across… Resumable Chunked Upload SimulatorNew📱Watch a mobile app upload a large file to cloud storage as parallel chunks over presigned… Delta Sync: Rolling-Checksum Cloud BackupNew📱Interactive 3D model of the rsync-style delta-sync algorithm mobile apps use for cloud… Service Discovery: Heartbeat Registry & Stale-Cache FailuresNew📱A 3D service-registry simulator for a mobile backend's microservice cluster: instances… Offline-First Sync Engine: Outbox Queue & Optimistic RollbackNew📱An interactive 3D model of a mobile offline-first sync architecture: local edits apply… Offline Sync Queue: Write Coalescing & Payload CompactionNew📱Edit local records while an offline-first mobile client has no connection, then watch… Operational Transform: Converging Concurrent EditsNew📱Two mobile clients edit the same shared text buffer at once over a lagging connection; watch… Merkle Tree Sync: Reconciling Offline-Diverged ReplicasNew📱Two replicas drift apart while one works offline; watch a Merkle-tree anti-entropy sync… Blockchain Mining & ConsensusNew📱Interactive 3D simulation of proof-of-work mining and longest-chain consensus: independent… CAP Theorem Cluster SimulatorNew📱Interactive CAP theorem simulator: split a replicated node cluster with a network partition… Cloud vs Edge Latency SimulatorNew📱Interactive 3D race between a cloud round trip and on-device edge processing: watch… Blockchain Network SimulatorNew📱Interactive 3D peer-to-peer gossip network: watch nodes mine and propagate blocks hop by hop… IoT Message Broker SimulatorNew📱Interactive 3D model of an IoT platform's message broker: tune connected device count,… Apache Airflow DAG SchedulerNew📱Watch an Airflow-style scheduler walk a directed acyclic graph of tasks: eligible tasks… Apache Spark Distributed ExecutionNew📱Watch a Spark job run: a driver splits stages into tasks, ships them to executors that run… API Request Lifecycle Simulator: Gateway, Rate Limiting, Auth & MicroservicesNew📱Watch REST API requests flow from a client through an API Gateway into three microservices… Distributed Computing - Comprehensive GuideNew📱This simulation provides a foundational understanding of distributed computing principles.… Distributed Systems — Consistency, Availability, and Partition ToleranceNew📱This simulation focuses on distributed system design principles. It illustrates the… The Paxos Consensus Protocol: How Distributed Systems Agree on One ValueNew📱Explore how the Paxos consensus protocol lets unreliable, message-losing nodes agree on a… Vector Clocks: Ordering Events Without a Shared ClockNew📱Learn how vector clocks let distributed machines figure out which events caused which,… Two-Phase Commit: How Distributed Databases Agree to Commit or Abort TogetherNew📱Explore the two-phase commit protocol that lets distributed databases guarantee atomicity… The Circuit Breaker Pattern: Stopping Cascading Failures in Software SystemsNew📱Explore how the circuit breaker pattern, borrowed from electrical engineering, protects… The Bully Algorithm: Electing a Leader in a Distributed System by Highest IDNew📱Explore the classic Bully Algorithm for leader election in distributed systems, tracing the… Chain Replication: A Simpler Way to Keep Distributed Data ConsistentNew📱Explore chain replication, the 2004 van Renesse and Schneider technique that arranges… MVCC: How Databases Let Readers and Writers Work Without Blocking Each OtherNew📱Explore Multi-Version Concurrency Control (MVCC), the technique behind PostgreSQL, MySQL… Write-Ahead Logging: How Databases Survive a CrashNew📱Explore write-ahead logging (WAL), the protocol that lets PostgreSQL, MySQL, and filesystems… CRDTs: Merging Data Without a Central CoordinatorNew📱Explore conflict-free replicated data types, distributed data structures that let… Gossip Protocol: How Clusters Spread Information Like an EpidemicNew📱Explore gossip protocols, where nodes randomly exchange state with peers so updates spread… Rendezvous Hashing: Highest Random Weight AssignmentNew📱Explore Rendezvous Hashing (Highest Random Weight), a ring-free technique where every node… Hybrid Logical ClocksNew📱Explore Hybrid Logical Clocks (HLC), a timestamping scheme that blends physical wall-clock… The Chandy-Lamport Distributed Snapshot AlgorithmNew📱Explore how the Chandy-Lamport algorithm captures a consistent global snapshot of a… Kademlia Distributed Hash TableNew📱Explore how Kademlia lets thousands of peers find data without any central server, using XOR… Google Spanner's TrueTime API: Turning Clock Uncertainty into a Global GuaranteeNew📱Explore how Google Spanner's TrueTime API exposes clock uncertainty as an explicit time… Bloom Filter — Probabilistic Set MembershipNew📱A Bloom filter tests set membership with k hash functions over a bit array: no false… Consistent Hashing — The Hash RingNew📱Map keys and servers onto a hash ring so adding or removing a node only remaps a small… Load Balancer — Request Distribution PoliciesNew📱Route incoming requests across backend servers with round-robin, least-connections, weighted… CPU Scheduling — FCFS, SJF, Round RobinNew📱Schedule processes on a CPU with FCFS, SJF, priority and round-robin policies. An animated… Page Replacement — LRU, FIFO & OptimalNew📱Run a reference string through FIFO, LRU, Clock and Optimal page-replacement policies,… Dining Philosophers — Deadlock & ConcurrencyNew📱Five philosophers share five forks: grab both naively and they deadlock. Toggle resource… Distributed ConsensusNew📱Raft consensus algorithm, CAP theorem and Byzantine fault tolerance in distributed systems.