Redis · Valkey · Cluster · SentinelRedis & Valkey, cached, clustered, never slow.
In short: Redis is an open-source, in-memory data store used as a database, cache, and message broker, delivering sub-millisecond latency. It supports rich data structures — strings, hashes, lists, sets, sorted sets, streams, and HyperLogLog — with persistence (RDB/AOF), replication, Sentinel and Cluster high availability, and server-side Lua scripting.
Expert Redis and Valkey consulting for high-performance in-memory databases, caching solutions, and real-time applications. Optimize your data layer for maximum speed and efficiency.
JUSDB_REDIS_PRODRedis 7.2 · cluster
3 primaries + 3 replicas · 16384 slots
0.00M
98.5%
0
0
Ops Throughput
0.00M ops/s[OK] rdb: snapshot saved, AOF rewrite 0 stalls
[INF] repl: replica-02 in sync, offset caught up
[OK] maxmemory-policy allkeys-lru, 62% used
[INF] keyspace notifications streaming to consumers
Representative fleet view · illustrative metrics
0+
Redis Instances Managed
0.99%
Uptime SLA
0M+
Peak Ops / sec
0ms
Sub-ms p99 Latency
What we do
Redis & Valkey engineering
Our in-memory database specialists deliver high-performance solutions for caching, session management, and real-time applications.
Latency & Memory Profiling
Optimize maxmemory-policies, memory fragmentation ratios, and RDB/AOF persistence latency spikes.
Cluster & Sentinel HA
Design and manage Redis Clusters with automated shard rebalancing and Sentinel zero-downtime failovers.
Advanced Data Structures & Lua
Implement HyperLogLog, Bloom filters, and atomic server-side Lua scripting for complex business logic.
Security & Encryption
Secure Redis deployments with AWS KMS integrated TLS, ACLs (Redis 6+), and strict network isolation.
Pub/Sub & Event Streams
Architect robust real-time messaging using Redis Streams (Consumer Groups) and Pub/Sub pipelines.
Seamless Valkey Migration
Zero-downtime migrations from Redis/ElastiCache to open-source Valkey or newer Redis versions.
In-memory performance
Redis & Valkey expertise
Our in-memory database specialists deliver high-performance solutions for caching, session management, and real-time applications.
Cache Performance
After tuning12×
Throughput gain
55%
Memory reduction
Real cases
Workloads we've transformed
9,400ms
12ms
Thundering herd on cold key expiry
The fix
Added request coalescing + jittered TTLs
6,200ms
0.4ms
KEYS * blocking on 240MB list
The fix
Replaced KEYS with cursor-based SCAN
OOM
Stable
maxmemory-policy noeviction → crashes
The fix
Set allkeys-lru, capped maxmemory at 75%
0.00%
Cluster Uptime
<0s
Failover RTO
0ms
Replica Lag
High availability
Always on. Cluster-engineered.
Redis Cluster with hash-slot sharding, Sentinel quorum-based failover, and split-brain prevention — tested with failover drills. Real 99.99% uptime, not a theoretical SLA.
Incident response
An OOM-eviction P1, handled in under 15 minutes.
When memory pressure triggers mass evictions or a fork stalls latency, a named Redis engineer responds — not a ticket queue. Eviction-policy and persistence fixes applied online, with a blameless postmortem after.
used_memory hit maxmemory — OOM evictions spiking
Named Redis engineer in under 15 min, not a queue
Big key — 240MB list scanned by KEYS *
Swapped KEYS→SCAN, set allkeys-lru policy
Evictions cleared, p99 90ms → 0.4ms — total 10 min
Pre-Migration Assessment
Memcached / self-hosted → Redis (ElastiCache)
Estimated cutover window: < 5 minutes
Migration
Move to Valkey without the downtime
Redis or ElastiCache → open-source Valkey, or Sentinel → Cluster. We pre-validate config and data structures, replicate live, and cut over in a sub-minute window with backward compatibility.
Technology stack
Technologies We Work With
Complete Redis and Valkey ecosystem support
Get started
Ready to Accelerate Your Applications?
Unlock the full potential of in-memory databases with our Redis and Valkey expertise. Achieve lightning-fast performance and seamless scalability.
Related In-Memory & Caching Services
Valkey Consulting
Open-source Redis alternative with AWS, Google, and Oracle backing. Expert Valkey migration, Lua scripting, and cross-datacenter replication consulting.
Aerospike Services
Sub-millisecond latency at petabyte scale with Aerospike's hybrid memory architecture — ideal when Redis/Valkey doesn't scale far enough.
Redis service paths
Redis Consulting
OSS vs Enterprise vs ElastiCache vs MemoryDB decisions, module architecture (RediSearch, RedisJSON, vector), SSPL/RSAL licensing strategy.
Redis Migration
Sentinel → Cluster, self-managed → ElastiCache or MemoryDB, version upgrades, cross-cloud, with zero-downtime cutover playbooks.
Redis on Kubernetes
Redis Operator, Helm chart, Sentinel and Cluster topology on K8s, PVC strategy, ingress patterns for production-grade Redis.
Compare with Other Databases
JusDB operates production fleets across most major engines. If you're weighing alternatives, here are the most common ones our customers compare against.
Valkey
Linux Foundation fork of Redis after the March 2024 license change — wire-compatible and the default in new ElastiCache deployments.
Dragonfly
Redis-protocol-compatible single-binary KV store optimized for modern multi-core hardware — claims 25× throughput on the same workload.
Aerospike
When Redis cluster slot management and memory pressure start dominating ops time, Aerospike's hybrid memory + persistence is the usual evaluation.
MongoDB
Redis as cache + MongoDB as primary is the canonical two-tier pattern for read-heavy session and catalog workloads.
Explore Our Redis Services
Explore more ways our Redis experts can help with your database infrastructure.