Redis Cluster Topology

Redis Cluster Topology

When Adding Nodes Fails to Improve Throughput: A Topology Check

You add three more Redis nodes to your cluster. yield should climb, right? Instead, latency spikes, error rates jump, and clients start timing out. So...

Redis Cluster Topology

When Your Redis Cluster Benchmark Ignores Node Failover: A Field Guide

Here's a story. A team I knew ran Redis Cluster benchmarks for weeks. They tuned every knob. P99 latency looked great. Throughput hit their target. Th...

Redis Cluster Topology

What Your Node Count Hides About Cross-Slot Latency in Redis Cluster

You've got 12 nodes in your Redis Cluster. Latency spikes at p99 still hit 50ms on multi-key reads. The staff blames network—add more nodes, they say....

Redis Cluster Topology

Choosing a Shard Distribution Strategy Without Guessing Slot Assignments

You're staring at 16384 hash slots and a blank cluster config. Do you spread them evenly, group them by node, or use hash tags? The answer isn't in th...

Redis Cluster Topology

When Cluster Topology Changes Trigger Unplanned Pipeline Stalls

You've got a Redis Cluster humming along. Clients pipeline commands across multiple nodes, throughput is high, latency low. Then a node goes down. Or ...