Designs

Company tags are community-reported. Counts on cards show how many people reported that design.

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  3. Design a Distributed Cache

  Partition cached data, survive node loss and keep cache misses from overwhelming the source of truth.

  ClassicMedium

  CachingShardingDatabases

  +9

  Distributed systemsAWSConsistencyConsistent hashingHot keysLRU evictionMemcachedRedisReplication

  Worked design

  Practice
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  61. Design a Collaborative Editor like Google Docs

  A hundred people typing in one document, every copy converging, nothing acknowledged lost: one owner per document, an op log with snapshots, and fenced failover.

  ClassicMedium

  DatabasesDistributed systemsAWS

  +6

  CollaborationConsistent hashingDynamoDBOperational transformReal timeWebSockets

  Worked design

  Practice

Each design brings together the brief, practice, examples and discussion.