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Reducing Server Load: Measure Before Tuning PHP-FPM
High CPU load on a web server can come from slow application queries, runaway workers, scheduled jobs, traffic spikes, or external scans. Increasing worker limits without identifying the cause may make resource contention worse.Start by measuring CPU, memory, I/O wait, load average, and the processes consuming resources. Correlate the time window with web access logs, PHP-FPM status, database acti...
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Linux Service Troubleshooting With systemctl and Logs
A Linux service that will not start usually leaves evidence in its unit status, journal, or application log. Begin with the service's current state rather than restarting it repeatedly without collecting output.Use systemctl status to see whether the unit is inactive, failed, or restarting. journalctl -u service-name can show recent messages around the failure. Check the service configuration and...
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