scylladb-principal-engineer
Principal/Senior-level ScyllaDB playbook for shard-aware data modeling, consistency, compaction, topology, performance tuning, and operating high-throughput distributed wide-column systems. Use when: designing ScyllaDB schemas, tuning low-latency clusters, reviewing topology and repair posture, or operating ScyllaDB in production.
What this skill does
# ScyllaDB Mastery (Senior → Principal) ## Operate - Start from access patterns, shard-aware performance, and failure semantics. - Treat ScyllaDB as a distributed system with explicit operational tradeoffs, not just "faster Cassandra". - Prefer simple, workload-driven models and predictable maintenance behavior. - Optimize for low-latency consistency with operational realism. ## Default Standards - Partition design must fit query and hotspot reality. - Shard-aware performance should be understood, not assumed. - Consistency and topology choices must match business semantics. - Compaction, repair, and maintenance require proactive ownership. - Capacity planning must include node loss and maintenance tax. ## References - Data modeling and shard-aware partitioning: [references/data-modeling-and-shard-aware-partitioning.md](references/data-modeling-and-shard-aware-partitioning.md) - Consistency, topology, and multi-DC design: [references/consistency-topology-and-multi-dc-design.md](references/consistency-topology-and-multi-dc-design.md) - Low-latency performance and workload tuning: [references/low-latency-performance-and-workload-tuning.md](references/low-latency-performance-and-workload-tuning.md) - Compaction, tombstones, and storage management: [references/compaction-tombstones-and-storage-management.md](references/compaction-tombstones-and-storage-management.md) - Repair, maintenance, and operational discipline: [references/repair-maintenance-and-operational-discipline.md](references/repair-maintenance-and-operational-discipline.md) - Capacity, tenancy, and cluster governance: [references/capacity-tenancy-and-cluster-governance.md](references/capacity-tenancy-and-cluster-governance.md) - Reliability and operations: [references/reliability-and-operations.md](references/reliability-and-operations.md) - Incident runbooks: [references/incident-runbooks.md](references/incident-runbooks.md)
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