ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
A concise architecture note for FoundationDB 7.x covering minimal fault‑tolerant topology, trust boundaries, operational checks, failure modes and redesign triggers based on latency, conflicts and multi‑region RPO.
Architecture note for YugabyteDB synchronous multi-AZ deployment: 3-node RF=3 design, Raft quorum boundaries, operational metrics, failure modes, and triggers for design changes (async xCluster, follower reads, placement policies).
TrueTime gives Google Spanner global external consistency by returning a bounded time interval and enforcing a commit‑wait rule, eliminating a central timestamp oracle and keeping latency predictable.
Row Cache Invalidation with Tunable Consistency Cassandra row cache keeps frequently accessed partitions in memory to reduce disk I/O. Invalidation is handled locally on the node that receives the write, and a QUORUM write does not trigger a cluster-wide invalidation of row caches on all replicas. A subsequent read at consistency ONE can be routed to a repli
yugabytedb
google
cassandra