Loki Limitations? Try SigLens

Loki was built with one mission in mind—“Prometheus, but for logs.” And for many teams, it delivered on that promise. Simple, low-cost, and tightly integrated with Grafana, Loki became a go-to solution for log aggregation in Kubernetes-native environments.

But as systems scale, log volume explodes, and engineering demands evolve, Loki’s simplicity becomes its bottleneck.

From Lightweight to Limiting: Where Loki Falls Short

If you’ve used Loki, you’ve likely appreciated its no-fuss setup. But the trade-offs become apparent quickly:

Slow query performance as log volume grows.

Limited full-text search capabilities, only labels are indexed.

High operational complexity for large-scale setups.

Difficult long-term retention and poor support for complex debugging workflows.

For modern teams dealing with distributed microservices, hundreds of deployments, and real-time SLAs, these limitations turn into blockers.

This is where SigLens comes into play!

SigLens: Purpose-Built for High-Speed, High-Scale Observability

Where Loki slows down, SigLens speeds up. Where Loki simplifies at the cost of power, SigLens balances simplicity with scalability. It was designed from the ground up to handle massive, streaming log data with real-time precision.

Here’s what sets it apart:

🚀 Query Billions of Logs in Seconds

SigLens is 90,000x faster than Loki. Sounds unreal? See our benchmarking result Its stream-first architecture enables blazing-fast queries, sub-second response time even at terabyte scale. You can debug across weeks of data instantly.

🔍 Native Full-Text & Structured Search

Unlike Loki, which struggles with flexible search at scale, SigLens supports advanced, schema-less search that feels as intuitive as it is powerful.

🧩 Frictionless Setup, Zero Tuning

No reindexing. No elaborate tuning. SigLens works out-of-the-box with ingestion pipelines like Fluentd and integrates with Grafana.

💸 Lower TCO with No Lock-In

SigLens provides enterprise-grade performance at a fraction of Loki’s hidden infrastructure costs and we don’t lock you into any one cloud or backend.

SigLens vs. Loki: A Quick Comparison

Why would your DevOps team want to make a switch?

Let’s say a mid-sized SaaS company running a containerized stack on EKS had been using Loki for nearly a year. Initially, it did the job. Logs were ingested, dashboards were snappy, and queries were tolerable

But then... growth happened.

More customers. More containers. More logs. Suddenly:

🔍 Queries that once took 2 seconds were now dragging on for 5+ minutes

⏳ Dashboard timeouts became an everyday frustration

🧠 SREs spent more time waiting for data than acting on it

That’s when they realized: Loki wasn’t built for real-time scale.

Enter SigLens.

SigLens is purpose-built for high-ingestion, real-time observability. No tuning. No engineering gymnastics. Just raw speed and efficiency.

⚡ Sub-second query performance even at scale

📉 80% lower cost of ownership thanks to storage and compute efficiency

🛠️ Installs seamlessly alongside your stack – no vendor lock-in

And most importantly:

Your SREs go from firefighting… to actually engineering

Thinking About Switching? Then, let’s Talk

Try SigLens

GitHub Repo