Operations | Monitoring | ITSM | DevOps | Cloud

A data residency security review for observability in your own cloud account: vendor access, connection direction, PII redaction and egress, with what Last9 documents. Last9 is an observability platform built for high-cardinality telemetry. It unifies logs, metrics, and traces with native OpenTelemetry and Prometheus support, real-time alerting, and long-term retention.

Wide events move observability cost instead of removing it. See what each signal is billed in, which question each answers cheapest, and how to size spend against cloud spend. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.

Rule-based routing pages the service that errored. Build a small triage service that reads the alert webhook, finds the origin span in your traces and pages the team that owns it. Last9 is an observability platform built for high-cardinality telemetry. It unifies logs, metrics, and traces with native OpenTelemetry and Prometheus support, real-time alerting, and long-term retention.

Correlate logs, traces and metrics with trace_id, span_id, exemplars and shared resource attributes, then pivot from an alert to the root cause. Last9 is an observability platform built for high-cardinality telemetry. It unifies logs, metrics, and traces with native OpenTelemetry and Prometheus support, real-time alerting, and long-term retention.

How to monitor HashiCorp Vault, Consul and Nomad with Prometheus: telemetry config, scrape setup, auth, and the key metrics and thresholds to alert on. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.

Service mesh observability guide: the metrics Istio, Linkerd and Envoy proxies emit, what ambient mode changes, and why tracing still needs app changes. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.

MCP server monitoring guide: spans, metrics and logs to record for tool calls, why failed tools look healthy, and how to trace requests from client to server. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.

CI/CD observability guide: the OpenTelemetry CI/CD conventions, tracing GitHub Actions and Jenkins runs, queue time, failure vs error, and deploy markers. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.

Set up the Prometheus Blackbox Exporter: install it, write HTTP, TCP, DNS and ICMP modules, relabel scrape targets, and alert on probe_success and SSL expiry. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.

RAG pipeline observability guide: the spans, attributes and metrics to record for embedding, retrieval, reranking and generation, plus evals for bad answers. Sejal Pandey works on content and growth at Last9, writing about observability, reliability, and SRE practices.