Articles about Linux server monitoring, performance, and product updates.
ARM Cortex processors use different PMU registers than x86, causing load average calculations to report incorrect values. Fix your aarch64 monitoring.
Read more →Real-world multipath storage monitoring through /proc/scsi parsing and device-mapper statistics that catch path redundancy loss before complete SAN failure.
Read more →Track down memcached connection leaks through /proc/net/tcp and file descriptor analysis when standard monitoring tools fail to reveal the root cause.
Read more →Hosting company discovers mysterious pod restarts caused by subtle cgroups v2 memory pressure that kubectl logs and Kubernetes health checks never detected.
Read more →Billing pattern analysis reveals expensive vendor dependencies months before contract renewal. Learn how cost spikes expose hidden lock-in.
Read more →Identical nodetool status outputs can hide catastrophic ring splits. Learn system-level detection methods for gossip protocol failures.
Read more →How cross-datacenter TCP connection monitoring caught Elasticsearch quorum failures 8 minutes before split-brain corruption destroyed critical search infrastructure.
Read more →Step-by-step guide to implementing PostgreSQL multi-datacenter monitoring that catches replication lag and split-brain scenarios 20 seconds before applications notice.
Read more →A real incident where DNS TTL settings caused 12 minutes of silent service gaps during datacenter failover, despite all monitoring showing healthy completion.
Read more →System-level TCP connection analysis catches Traefik backend failures 15-30 seconds before API-based monitoring, revealing why /proc/net/tcp outperforms dashboard metrics.
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