mirror of
https://github.com/bigbeartechworld/big-bear-scripts.git
synced 2026-08-04 19:15:12 -04:00
Improve the calculate php pool script and add tips
This commit is contained in:
Christopher
@@ -1,6 +1,30 @@
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#!/bin/bash
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# Step 1: Find running PHP-FPM processes
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# Function to convert memory from KB to MB
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to_mb() {
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echo "scale=2; $1 / 1024" | bc
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}
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# Function to display memory in MB or GB as appropriate
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display_memory() {
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local memory_mb=$1
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if (( $(echo "$memory_mb < 1024" | bc -l) )); then
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echo "${memory_mb} MB"
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else
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local memory_gb=$(echo "scale=2; $memory_mb / 1024" | bc)
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echo "${memory_gb} GB"
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fi
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}
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# Get total installed RAM in MB and display appropriately
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total_ram_mb=$(free -m | awk '/^Mem:/ {print $2}')
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total_ram_display=$(display_memory $total_ram_mb)
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# Get total memory used by processes other than PHP-FPM
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total_used_other_mb=$(ps --no-headers -e -o rss,comm | grep -v php-fpm | awk '{sum+=$1} END {print sum}' | xargs -I {} bash -c "echo $(to_mb {})")
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total_used_other_mb=$(LC_NUMERIC=C printf "%.2f" $total_used_other_mb) # Ensure correct formatting
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# Detect PHP-FPM processes
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php_fpm_versions=$(ps -eo comm | grep php-fpm | grep -v grep | sort | uniq)
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if [[ -z "$php_fpm_versions" ]]; then
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@@ -26,6 +50,30 @@ fi
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echo "Selected PHP-FPM version: $php_fpm_version"
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# Try to find the PHP-FPM master process
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php_fpm_pid=$(pgrep -f "php-fpm: master process" | head -n 1)
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if [[ -z "$php_fpm_pid" ]]; then
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echo "Unable to find the PID for PHP-FPM master process. Estimations might be inaccurate."
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else
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php_fpm_start_time=$(ps -o lstart= -p "$php_fpm_pid")
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php_fpm_up_seconds=$(date --date="$php_fpm_start_time" +%s)
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current_time=$(date +%s)
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php_fpm_uptime=$((current_time - php_fpm_up_seconds))
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# Convert uptime to days, hours, minutes, and seconds
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php_fpm_uptime_days=$((php_fpm_uptime / 86400))
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php_fpm_uptime_hours=$(( (php_fpm_uptime % 86400) / 3600 ))
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php_fpm_uptime_minutes=$(( (php_fpm_uptime % 3600) / 60 ))
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php_fpm_uptime_seconds=$((php_fpm_uptime % 60))
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echo "PHP-FPM master process uptime: $php_fpm_uptime_days days, $php_fpm_uptime_hours hours, $php_fpm_uptime_minutes minutes, $php_fpm_uptime_seconds seconds."
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# Warning if uptime is too short
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if [[ $php_fpm_uptime_hours -lt 1 && $php_fpm_uptime_days -eq 0 ]]; then
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echo "Warning: PHP-FPM master process has been up for less than 1 hour. Memory usage estimations might be inaccurate."
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fi
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fi
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# Step 3: Calculate average memory usage
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avg_memory=$(ps --no-headers -o rss -C $php_fpm_version | awk '{sum+=$1; ++n} END {print sum/n/1024}')
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@@ -53,3 +101,107 @@ else
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total_memory_gb=$(echo "$total_memory / 1024" | bc -l)
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printf "Total estimated memory required for all PHP-FPM processes: %.2f GB\n" $total_memory_gb
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fi
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# Total estimated memory including PHP-FPM
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total_estimated_mb=$(echo "scale=2; $total_memory + $total_used_other_mb" | bc)
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total_estimated_mb=$(LC_NUMERIC=C printf "%.2f" $total_estimated_mb) # Ensure correct formatting
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total_estimated_display=$(display_memory $total_estimated_mb)
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# Check if total estimated memory exceeds total RAM
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if (( $(echo "$total_estimated_mb > $total_ram_mb" | bc -l) )); then
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echo "Warning: Estimated memory usage ($total_estimated_display) exceeds total RAM ($total_ram_display)"
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else
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echo "Server RAM is sufficient. Total RAM: $total_ram_display, Estimated usage: $total_estimated_display"
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fi
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# Optimization Suggestions
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echo "Optimization Suggestions:"
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if (( $(echo "$total_estimated_mb > $total_ram_mb" | bc -l) )); then
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echo "- Consider reducing 'pm.max_children' in your PHP-FPM pool configuration."
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echo "- Review and optimize your PHP application to lower memory usage per process."
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else
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if (( $(echo "$total_estimated_mb / $total_ram_mb > 0.7" | bc -l) )); then
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echo "- While the current settings seem okay, it's close to the server's limit. Consider optimizing to provide more buffer."
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else
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echo "- Your current PHP-FPM configuration seems well-optimized for your server's RAM."
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fi
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fi
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# Check if the pool is set to static and suggest pm.max_children if necessary
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pm_type=$(grep "^pm\s*=" $pool_config | awk '{print $3}')
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if [[ "$pm_type" == "static" ]]; then
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optimal_max_children=$(echo "$total_ram_mb / $avg_memory" | bc)
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echo "Your PHP-FPM pool is configured to use a static process manager."
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echo "Based on the available RAM and average memory usage per process:"
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echo "- Optimal 'pm.max_children' could be around $optimal_max_children"
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echo " (Consider keeping some buffer for the OS and other processes)"
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# Suggestion for dynamic and ondemand
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elif [[ "$pm_type" == "dynamic" || "$pm_type" == "ondemand" ]]; then
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optimal_max_children=$(echo "$total_ram_mb / $avg_memory" | bc)
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echo "For a 'dynamic' or 'ondemand' PHP-FPM pool configuration, consider the following settings:"
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echo "- pm.max_children: $optimal_max_children (Based on available RAM and average memory usage)"
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if [[ "$pm_type" == "dynamic" ]]; then
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start_servers=$(echo "$optimal_max_children / 4" | bc) # Example calculation
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min_spare_servers=$(echo "$optimal_max_children / 8" | bc) # Example calculation
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max_spare_servers=$(echo "$optimal_max_children / 2" | bc) # Example calculation
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echo "- pm.start_servers: $start_servers"
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echo "- pm.min_spare_servers: $min_spare_servers"
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echo "- pm.max_spare_servers: $max_spare_servers"
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elif [[ "$pm_type" == "ondemand" ]]; then
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process_idle_timeout="10s" # Example value
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echo "- pm.process_idle_timeout: $process_idle_timeout"
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fi
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echo "Adjust these values based on your application's load and performance testing."
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else
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echo "Your PHP-FPM pool is set to an unknown process manager type: $pm_type."
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fi
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echo "- Regularly monitor performance and adjust settings as needed."
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echo "- If further optimizations are not sufficient, upgrading your server's hardware might be necessary."
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# Ask the user if they want to update the configuration file
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read -p "Do you want to update the PHP-FPM pool configuration with these values? (y/N) " -n 1 -r
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echo # Move to a new line
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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# Backup the original configuration file
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if sudo cp "$pool_config" "${pool_config}.bak"; then
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echo "Backup of the configuration file created."
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# Update configuration settings
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if [[ "$pm_type" == "static" ]]; then
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sudo sed -i "s/^pm.max_children = .*/pm.max_children = $optimal_max_children/" "$pool_config"
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elif [[ "$pm_type" == "dynamic" ]]; then
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sudo sed -i "s/^pm.max_children = .*/pm.max_children = $optimal_max_children/" "$pool_config"
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sudo sed -i "s/^pm.start_servers = .*/pm.start_servers = $start_servers/" "$pool_config"
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sudo sed -i "s/^pm.min_spare_servers = .*/pm.min_spare_servers = $min_spare_servers/" "$pool_config"
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sudo sed -i "s/^pm.max_spare_servers = .*/pm.max_spare_servers = $max_spare_servers/" "$pool_config"
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elif [[ "$pm_type" == "ondemand" ]]; then
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sudo sed -i "s/^pm.max_children = .*/pm.max_children = $optimal_max_children/" "$pool_config"
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sudo sed -i "s/^pm.process_idle_timeout = .*/pm.process_idle_timeout = $process_idle_timeout/" "$pool_config"
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fi
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echo "PHP-FPM pool configuration updated successfully."
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echo "Don't forget to restart your PHP-FPM service for these changes to take effect."
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else
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echo "Error: Failed to create a backup of the configuration file. No changes were made."
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fi
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else
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echo "No changes were made to the PHP-FPM pool configuration."
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fi
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# Ask if the user wants to restart PHP-FPM service
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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read -p "Do you want to restart the PHP-FPM service now? (y/N) " -n 1 -r
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echo # Move to a new line
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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# Attempt to restart PHP-FPM service
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echo "Restarting PHP-FPM service..."
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if sudo systemctl restart php${php_version}-fpm; then
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echo "PHP-FPM service restarted successfully."
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else
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echo "Failed to restart PHP-FPM service. Please restart the service manually."
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fi
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else
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echo "Remember to restart your PHP-FPM service manually for the changes to take effect."
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fi
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fi
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