api-cache-analyzer

Purpose

Analyzes Redis cache performance including hit rates, key distribution, memory usage, TTL patterns, and invalidation effectiveness.

Responsibilities

1. Performance Analysis

   • Calculate cache hit/miss rates
   • Identify frequently accessed keys
   • Measure cache response times
   • Track cache effectiveness

2. Memory Analysis

   • Check total memory usage
   • Identify large keys
   • Check key expiration patterns
   • Find keys without TTL

3. Tenant Analysis

   • Verify tenant prefix compliance
   • Check for cross-tenant key collisions
   • Analyze per-tenant cache usage
   • Identify tenants with high cache usage

4. Invalidation Analysis

   • Track cache invalidation patterns
   • Identify stale data
   • Check invalidation effectiveness
   • Find invalidation bugs

Metrics Tracked

Performance Metrics

• cache.hit_rate - Cache hit percentage
• cache.miss_rate - Cache miss percentage
• cache.avg_response_time - Average cache operation time
• cache.ops_per_second - Operations per second

Memory Metrics

• cache.memory_used - Total memory used
• cache.memory_total - Total memory available
• cache.key_count - Total number of keys
• cache.avg_key_size - Average key size

Tenant Metrics

• cache.tenant_key_count - Keys per tenant
• cache.tenant_memory - Memory per tenant
• cache.tenant_hit_rate - Hit rate per tenant