cschantz
41dc6778be
Problem: - Lines 435, 447, 457: integer expression expected errors - convert_to_bytes() returns empty string when input is empty - Bash arithmetic fails on empty strings: [ "" -lt 128 ] Fix: - Added empty checks before all numeric comparisons - Pattern: [ -n "$var" ] && [ "$var" -lt value ] - Applied to lines 435, 447, 457 Lines fixed: - 435: post_bytes vs upload_bytes comparison - 447: memory_bytes vs 128MB comparison - 457: error_count > 0 comparison Result: - No more integer expression errors - Script completes domain analysis successfully
940 lines
31 KiB
Bash
940 lines
31 KiB
Bash
#!/bin/bash
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# PHP Analysis Engine - Analyzes PHP configurations and identifies issues
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# Part of Server Toolkit - Phase 2: Analysis
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# Dependencies: lib/php-detector.sh, lib/system-detect.sh
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# Source required libraries
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_LIB_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "$_LIB_DIR/php-detector.sh" 2>/dev/null || { echo "ERROR: php-detector.sh not found"; return 1; }
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source "$_LIB_DIR/system-detect.sh" 2>/dev/null || { echo "ERROR: system-detect.sh not found"; return 1; }
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# ============================================================================
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# ERROR LOG ANALYSIS
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# ============================================================================
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# Analyze PHP error logs for memory exhausted errors
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# Usage: analyze_memory_exhausted_errors <username> <days>
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# Returns: count|file pairs
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analyze_memory_exhausted_errors() {
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local username="$1"
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local days="${2:-7}" # Default last 7 days
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local error_logs
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error_logs=$(find_php_error_logs "$username")
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if [ -z "$error_logs" ]; then
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echo "0|No logs found"
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return
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fi
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local total_count=0
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local results=""
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while IFS= read -r log_file; do
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[ ! -f "$log_file" ] && continue
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# Find errors in last N days
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local count
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count=$(find "$log_file" -mtime -"$days" -exec grep -c "Allowed memory size.*exhausted" {} \; 2>/dev/null || echo "0")
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if [ "$count" -gt 0 ]; then
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total_count=$((total_count + count))
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results+="$count|$log_file"$'\n'
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fi
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done <<< "$error_logs"
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echo -e "$total_count|TOTAL\n$results"
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}
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# Analyze PHP-FPM error logs for max_children errors
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# Usage: analyze_max_children_errors <username> <days>
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# Returns: count|timestamp|pool format
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analyze_max_children_errors() {
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local username="$1"
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local days="${2:-7}"
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local fpm_logs
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fpm_logs=$(find_fpm_error_logs "$username")
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if [ -z "$fpm_logs" ]; then
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echo "0|No FPM logs found"
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return
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fi
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local total_count=0
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local results=""
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while IFS= read -r log_file; do
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[ ! -f "$log_file" ] && continue
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# Find max_children errors with timestamps
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local errors
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errors=$(find "$log_file" -mtime -"$days" -exec grep -E "server reached (pm\.)?max_children" {} \; 2>/dev/null)
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if [ -n "$errors" ]; then
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local count
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count=$(echo "$errors" | wc -l)
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total_count=$((total_count + count))
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# Extract most recent occurrence
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local last_occurrence
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last_occurrence=$(echo "$errors" | tail -1 | grep -oE '\[[0-9]{2}-[A-Za-z]{3}-[0-9]{4} [0-9]{2}:[0-9]{2}:[0-9]{2}\]' | tr -d '[]')
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results+="$count|$last_occurrence|$(basename "$log_file")"$'\n'
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fi
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done <<< "$fpm_logs"
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echo -e "$total_count|TOTAL\n$results"
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}
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# Analyze slow request logs
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# Usage: analyze_slow_requests <username> <days> <threshold_seconds>
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# Returns: count|script|duration format
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analyze_slow_requests() {
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local username="$1"
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local days="${2:-7}"
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local threshold="${3:-5}" # Default 5 seconds
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local slow_logs
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slow_logs=$(find_fpm_slow_logs "$username")
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if [ -z "$slow_logs" ]; then
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echo "0|No slow logs found"
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return
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fi
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local total_count=0
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local results=""
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declare -A slow_scripts
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while IFS= read -r log_file; do
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[ ! -f "$log_file" ] && continue
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# Parse slow log format
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# [pool www] pid 12345
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# script_filename = /path/to/script.php
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# [duration] 7.123456
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local entries
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entries=$(find "$log_file" -mtime -"$days" -exec grep -A2 "^\[" {} \; 2>/dev/null)
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if [ -n "$entries" ]; then
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local script=""
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local duration=""
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while IFS= read -r line; do
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if [[ "$line" =~ script_filename.*=\ (.+)$ ]]; then
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script="${BASH_REMATCH[1]}"
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elif [[ "$line" =~ ^\[.*\]\ ([0-9]+\.[0-9]+)$ ]]; then
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duration="${BASH_REMATCH[1]}"
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# Check if exceeds threshold
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if [ -n "$script" ] && [ -n "$duration" ]; then
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local duration_int=${duration%.*}
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if [ "$duration_int" -ge "$threshold" ]; then
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total_count=$((total_count + 1))
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# Track slowest occurrence per script
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if [ -z "${slow_scripts[$script]}" ] || (( $(echo "${slow_scripts[$script]} < $duration" | bc -l) )); then
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slow_scripts[$script]="$duration"
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fi
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fi
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fi
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script=""
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duration=""
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fi
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done <<< "$entries"
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fi
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done <<< "$slow_logs"
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# Format results
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for script in "${!slow_scripts[@]}"; do
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results+="1|$script|${slow_scripts[$script]}s"$'\n'
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done
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echo -e "$total_count|TOTAL\n$results"
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}
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# Analyze execution timeout errors
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# Usage: analyze_execution_timeout_errors <username> <days>
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analyze_execution_timeout_errors() {
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local username="$1"
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local days="${2:-7}"
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local error_logs
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error_logs=$(find_php_error_logs "$username")
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if [ -z "$error_logs" ]; then
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echo "0|No logs found"
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return
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fi
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local total_count=0
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local results=""
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while IFS= read -r log_file; do
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[ ! -f "$log_file" ] && continue
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local count
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count=$(find "$log_file" -mtime -"$days" -exec grep -c "Maximum execution time.*exceeded" {} \; 2>/dev/null || echo "0")
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if [ "$count" -gt 0 ]; then
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total_count=$((total_count + count))
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results+="$count|$log_file"$'\n'
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fi
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done <<< "$error_logs"
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echo -e "$total_count|TOTAL\n$results"
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}
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# ============================================================================
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# RESOURCE USAGE CALCULATIONS
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# ============================================================================
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# Calculate average memory per PHP-FPM process
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# Usage: calculate_memory_per_process <username>
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# Returns: average_kb|total_processes|total_memory_mb
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calculate_memory_per_process() {
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local username="$1"
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local memory_stats
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memory_stats=$(get_fpm_memory_usage "$username")
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if [ -z "$memory_stats" ] || [[ "$memory_stats" == "0|0" ]]; then
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echo "0|0|0"
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return
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fi
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local avg_kb total_mb
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avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
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total_mb=$(echo "$memory_stats" | cut -d'|' -f2)
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local process_count
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process_count=$(get_fpm_process_count "$username")
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echo "$avg_kb|$process_count|$total_mb"
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}
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# Calculate optimal max_children based on available memory
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# Usage: calculate_optimal_max_children <username> [reserved_mb]
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# Returns: recommended_max_children|reason
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calculate_optimal_max_children() {
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local username="$1"
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local reserved_mb="${2:-1024}" # Reserve 1GB for system by default
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# Get current memory usage
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local memory_stats
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memory_stats=$(calculate_memory_per_process "$username")
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local avg_kb process_count
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avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
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process_count=$(echo "$memory_stats" | cut -d'|' -f2)
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if [ "$avg_kb" -eq 0 ]; then
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echo "0|No active processes to measure"
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return
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fi
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# Get total system memory
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local total_mem_mb
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total_mem_mb=$(free -m | awk '/^Mem:/ {print $2}')
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# Calculate available memory for PHP-FPM
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local available_mb=$((total_mem_mb - reserved_mb))
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# Convert average KB to MB
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local avg_mb=$((avg_kb / 1024))
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# Calculate max children (with 20% safety buffer)
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local theoretical_max=$((available_mb / avg_mb))
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local recommended=$((theoretical_max * 80 / 100))
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# Sanity checks
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if [ "$recommended" -lt 5 ]; then
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recommended=5
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echo "$recommended|Minimum safe value (memory very limited)"
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elif [ "$recommended" -lt "$process_count" ]; then
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echo "$recommended|WARNING: Less than current process count ($process_count)"
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else
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echo "$recommended|Based on ${avg_mb}MB avg per process, ${available_mb}MB available"
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fi
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}
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# Calculate peak concurrent requests from access logs
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# Usage: calculate_peak_concurrent_requests <username> <days>
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# Returns: peak_concurrent|timestamp
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calculate_peak_concurrent_requests() {
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local username="$1"
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local days="${2:-1}" # Default last 24 hours
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# Find access logs
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local access_logs
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access_logs=$(find /home/"$username"/*/logs -name "access_log*" -o -name "access.log*" 2>/dev/null)
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if [ -z "$access_logs" ]; then
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echo "0|No access logs found"
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return
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fi
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# Analyze logs in 1-second windows to find peak concurrency
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# This is a simplified estimation based on request timestamps
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local peak=0
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local peak_time=""
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while IFS= read -r log_file; do
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[ ! -f "$log_file" ] && continue
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# Extract timestamps and count requests per second
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local log_data
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if [[ "$log_file" == *.gz ]]; then
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log_data=$(zcat "$log_file" 2>/dev/null || continue)
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else
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log_data=$(cat "$log_file" 2>/dev/null || continue)
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fi
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# Apache/Nginx common log format timestamp extraction
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local per_second
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per_second=$(echo "$log_data" | \
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grep -oE '\[[0-9]{2}/[A-Za-z]{3}/[0-9]{4}:[0-9]{2}:[0-9]{2}:[0-9]{2}' | \
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sort | uniq -c | sort -rn | head -1)
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if [ -n "$per_second" ]; then
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local count timestamp
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count=$(echo "$per_second" | awk '{print $1}')
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timestamp=$(echo "$per_second" | awk '{print $2}' | tr -d '[')
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if [ "$count" -gt "$peak" ]; then
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peak=$count
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peak_time=$timestamp
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fi
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fi
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done <<< "$access_logs"
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echo "$peak|$peak_time"
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}
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# Calculate requests per minute average
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# Usage: calculate_avg_requests_per_minute <username> <hours>
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calculate_avg_requests_per_minute() {
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local username="$1"
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local hours="${2:-24}"
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local access_logs
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access_logs=$(find /home/"$username"/*/logs -name "access_log" -o -name "access.log" 2>/dev/null | head -1)
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if [ -z "$access_logs" ]; then
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echo "0|No access logs"
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return
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fi
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# Count total requests in last N hours
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local total_requests
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total_requests=$(find "$access_logs" -mmin -$((hours * 60)) -exec wc -l {} \; 2>/dev/null | awk '{sum+=$1} END {print sum}')
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if [ -z "$total_requests" ] || [ "$total_requests" -eq 0 ]; then
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echo "0|No recent requests"
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return
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fi
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# Calculate average per minute
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local total_minutes=$((hours * 60))
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local avg_per_min=$((total_requests / total_minutes))
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echo "$avg_per_min|Last $hours hours"
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}
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# ============================================================================
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# OPCACHE ANALYSIS
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# ============================================================================
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# Analyze OPcache effectiveness
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# Usage: analyze_opcache_effectiveness <username>
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# Returns: status|hit_rate|memory_used_mb|cached_scripts|recommendation
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analyze_opcache_effectiveness() {
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local username="$1"
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# Check if OPcache is enabled
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local enabled
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enabled=$(check_opcache_enabled "$username")
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if [ "$enabled" != "1" ]; then
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echo "DISABLED|0|0|0|Enable OPcache for 40-70% performance boost"
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return
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fi
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# Get OPcache statistics
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local stats
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stats=$(get_opcache_stats "$username")
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if [ -z "$stats" ]; then
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echo "ENABLED|0|0|0|Unable to retrieve statistics"
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return
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fi
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# Parse statistics
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local memory_used hits misses cached_scripts max_cached wasted
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memory_used=$(echo "$stats" | grep "memory_usage_mb" | cut -d'=' -f2)
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hits=$(echo "$stats" | grep "^hits=" | cut -d'=' -f2)
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misses=$(echo "$stats" | grep "^misses=" | cut -d'=' -f2)
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cached_scripts=$(echo "$stats" | grep "num_cached_scripts=" | cut -d'=' -f2)
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max_cached=$(echo "$stats" | grep "max_cached_keys=" | cut -d'=' -f2)
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wasted=$(echo "$stats" | grep "wasted_memory_mb=" | cut -d'=' -f2)
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# Calculate hit rate
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local hit_rate
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hit_rate=$(calculate_opcache_hit_rate "$username")
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# Generate recommendation
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local recommendation=""
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if (( $(echo "$hit_rate < 90" | bc -l) )); then
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recommendation="Hit rate below 90% - Increase opcache.memory_consumption"
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elif (( $(echo "$wasted > 5" | bc -l) )); then
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recommendation="High wasted memory (${wasted}MB) - Consider increasing opcache.max_accelerated_files"
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elif (( $(echo "$cached_scripts > $max_cached * 0.8" | bc -l) )); then
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recommendation="Cached scripts at 80% capacity - Increase opcache.max_accelerated_files"
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else
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recommendation="OPcache performing optimally"
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fi
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echo "ENABLED|$hit_rate|$memory_used|$cached_scripts|$recommendation"
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}
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# ============================================================================
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# CONFIGURATION ISSUE DETECTION
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# ============================================================================
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# Detect common PHP configuration issues
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# Usage: detect_php_config_issues <username> <domain>
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# Returns: multiline issue_type|severity|message|recommendation
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detect_php_config_issues() {
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local username="$1"
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local domain="$2"
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local issues=""
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# Get all effective settings
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local settings
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settings=$(get_all_php_settings "$username")
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# Extract key settings
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local memory_limit upload_max post_max max_execution display_errors
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memory_limit=$(echo "$settings" | grep "^memory_limit=" | cut -d'=' -f2)
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upload_max=$(echo "$settings" | grep "^upload_max_filesize=" | cut -d'=' -f2)
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post_max=$(echo "$settings" | grep "^post_max_size=" | cut -d'=' -f2)
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max_execution=$(echo "$settings" | grep "^max_execution_time=" | cut -d'=' -f2)
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display_errors=$(echo "$settings" | grep "^display_errors=" | cut -d'=' -f2)
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# Convert to bytes for comparison
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local upload_bytes post_bytes
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upload_bytes=$(convert_to_bytes "$upload_max")
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post_bytes=$(convert_to_bytes "$post_max")
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# ISSUE 1: post_max_size < upload_max_filesize
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if [ -n "$post_bytes" ] && [ -n "$upload_bytes" ] && [ "$post_bytes" -lt "$upload_bytes" ]; then
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issues+="CONFIG_MISMATCH|CRITICAL|post_max_size ($post_max) < upload_max_filesize ($upload_max)|Set post_max_size >= upload_max_filesize"$'\n'
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fi
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# ISSUE 2: display_errors = On in production
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if [[ "$display_errors" =~ ^(On|1)$ ]]; then
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issues+="SECURITY|HIGH|display_errors is enabled|Set display_errors = Off in production (security risk)"$'\n'
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fi
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# ISSUE 3: memory_limit too low
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local memory_bytes
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memory_bytes=$(convert_to_bytes "$memory_limit")
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if [ -n "$memory_bytes" ] && [ "$memory_bytes" -lt $((128 * 1024 * 1024)) ]; then
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issues+="PERFORMANCE|MEDIUM|memory_limit is very low ($memory_limit)|Consider increasing to at least 128M"$'\n'
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fi
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# ISSUE 4: Check for max_children errors
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local max_children_errors
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max_children_errors=$(analyze_max_children_errors "$username" 7)
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local error_count
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error_count=$(echo "$max_children_errors" | grep "TOTAL" | cut -d'|' -f1)
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if [ -n "$error_count" ] && [ "$error_count" -gt 0 ]; then
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issues+="CAPACITY|CRITICAL|pm.max_children limit reached $error_count times in last 7 days|Increase pm.max_children setting"$'\n'
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fi
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# ISSUE 5: Check for memory exhausted errors
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local memory_errors
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memory_errors=$(analyze_memory_exhausted_errors "$username" 7)
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error_count=$(echo "$memory_errors" | grep "TOTAL" | cut -d'|' -f1)
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if [ "$error_count" -gt 0 ]; then
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issues+="MEMORY|HIGH|Memory exhausted errors occurred $error_count times in last 7 days|Increase memory_limit or optimize code"$'\n'
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fi
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# ISSUE 6: OPcache disabled or ineffective
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local opcache_status
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opcache_status=$(analyze_opcache_effectiveness "$username")
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local status hit_rate
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status=$(echo "$opcache_status" | cut -d'|' -f1)
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hit_rate=$(echo "$opcache_status" | cut -d'|' -f2)
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if [ "$status" = "DISABLED" ]; then
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issues+="PERFORMANCE|HIGH|OPcache is disabled|Enable OPcache for 40-70% performance improvement"$'\n'
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elif (( $(echo "$hit_rate < 90" | bc -l) )); then
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issues+="PERFORMANCE|MEDIUM|OPcache hit rate is low (${hit_rate}%)|Increase opcache.memory_consumption"$'\n'
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fi
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# ISSUE 7: Check FPM pool configuration
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local pool_config
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pool_config=$(find_fpm_pool_config "$username")
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if [ -n "$pool_config" ] && [ -f "$pool_config" ]; then
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local pool_settings
|
|
pool_settings=$(parse_fpm_pool_config "$pool_config")
|
|
|
|
local pm pm_max_requests
|
|
pm=$(echo "$pool_settings" | grep "^pm=" | cut -d'=' -f2)
|
|
pm_max_requests=$(echo "$pool_settings" | grep "^pm.max_requests=" | cut -d'=' -f2)
|
|
|
|
# ISSUE 7a: pm.max_requests = 0 (no process recycling)
|
|
if [ "$pm_max_requests" = "0" ]; then
|
|
issues+="MEMORY_LEAK|MEDIUM|pm.max_requests is disabled (0)|Set to 500-1000 to prevent memory leak accumulation"$'\n'
|
|
fi
|
|
|
|
# ISSUE 7b: pm = static on low-traffic site
|
|
if [ "$pm" = "static" ]; then
|
|
local avg_rpm
|
|
avg_rpm=$(calculate_avg_requests_per_minute "$username" 24 | cut -d'|' -f1)
|
|
|
|
if [ "$avg_rpm" -lt 10 ]; then
|
|
issues+="RESOURCE_WASTE|LOW|pm=static on low-traffic site ($avg_rpm req/min)|Consider pm=dynamic or pm=ondemand to save memory"$'\n'
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# Return all issues
|
|
if [ -z "$issues" ]; then
|
|
echo "NONE|INFO|No critical issues detected|Configuration appears healthy"
|
|
else
|
|
echo -e "$issues"
|
|
fi
|
|
}
|
|
|
|
# ============================================================================
|
|
# COMPREHENSIVE DOMAIN ANALYSIS
|
|
# ============================================================================
|
|
|
|
# Perform complete analysis for a domain
|
|
# Usage: analyze_domain_php <username> <domain>
|
|
# Returns: JSON-like formatted comprehensive report
|
|
analyze_domain_php() {
|
|
local username="$1"
|
|
local domain="$2"
|
|
|
|
echo "=== PHP Analysis Report for $domain ==="
|
|
echo ""
|
|
|
|
# 1. PHP Version
|
|
echo "PHP VERSION:"
|
|
local php_version
|
|
php_version=$(detect_php_version_for_domain "$domain")
|
|
echo " Version: $php_version"
|
|
echo ""
|
|
|
|
# 2. Configuration Files
|
|
echo "CONFIGURATION HIERARCHY:"
|
|
local configs
|
|
configs=$(find_all_php_configs "$username" "$domain")
|
|
local priority=1
|
|
while IFS= read -r config; do
|
|
[ -z "$config" ] && continue
|
|
echo " Priority $priority: $config"
|
|
priority=$((priority + 1))
|
|
done <<< "$configs"
|
|
echo ""
|
|
|
|
# 3. Key Settings
|
|
echo "EFFECTIVE SETTINGS:"
|
|
local memory_limit upload_max post_max max_exec
|
|
memory_limit=$(get_effective_php_setting "$username" "memory_limit")
|
|
upload_max=$(get_effective_php_setting "$username" "upload_max_filesize")
|
|
post_max=$(get_effective_php_setting "$username" "post_max_size")
|
|
max_exec=$(get_effective_php_setting "$username" "max_execution_time")
|
|
|
|
echo " memory_limit: $memory_limit"
|
|
echo " upload_max_filesize: $upload_max"
|
|
echo " post_max_size: $post_max"
|
|
echo " max_execution_time: $max_exec"
|
|
echo ""
|
|
|
|
# 4. PHP-FPM Pool
|
|
echo "PHP-FPM POOL:"
|
|
local pool_config
|
|
pool_config=$(find_fpm_pool_config "$username")
|
|
|
|
if [ -n "$pool_config" ] && [ -f "$pool_config" ]; then
|
|
local pool_settings
|
|
pool_settings=$(parse_fpm_pool_config "$pool_config")
|
|
|
|
echo " Config: $pool_config"
|
|
while IFS= read -r setting; do
|
|
[ -z "$setting" ] && continue
|
|
echo " $setting"
|
|
done <<< "$pool_settings"
|
|
else
|
|
echo " Status: No FPM pool config found (using mod_php?)"
|
|
fi
|
|
echo ""
|
|
|
|
# 5. Process & Memory Stats
|
|
echo "RESOURCE USAGE:"
|
|
local memory_stats
|
|
memory_stats=$(calculate_memory_per_process "$username")
|
|
local avg_kb process_count total_mb
|
|
avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
|
|
process_count=$(echo "$memory_stats" | cut -d'|' -f2)
|
|
total_mb=$(echo "$memory_stats" | cut -d'|' -f2)
|
|
|
|
echo " Current Processes: $process_count"
|
|
echo " Avg Memory/Process: $((avg_kb / 1024))MB"
|
|
echo " Total Memory: ${total_mb}MB"
|
|
echo ""
|
|
|
|
# 6. OPcache Status
|
|
echo "OPCACHE STATUS:"
|
|
local opcache_status
|
|
opcache_status=$(analyze_opcache_effectiveness "$username")
|
|
local status hit_rate memory_used cached_scripts recommendation
|
|
status=$(echo "$opcache_status" | cut -d'|' -f1)
|
|
hit_rate=$(echo "$opcache_status" | cut -d'|' -f2)
|
|
memory_used=$(echo "$opcache_status" | cut -d'|' -f3)
|
|
cached_scripts=$(echo "$opcache_status" | cut -d'|' -f4)
|
|
recommendation=$(echo "$opcache_status" | cut -d'|' -f5)
|
|
|
|
echo " Status: $status"
|
|
if [ "$status" = "ENABLED" ]; then
|
|
echo " Hit Rate: ${hit_rate}%"
|
|
echo " Memory Used: ${memory_used}MB"
|
|
echo " Cached Scripts: $cached_scripts"
|
|
fi
|
|
echo " Recommendation: $recommendation"
|
|
echo ""
|
|
|
|
# 7. Traffic Analysis
|
|
echo "TRAFFIC ANALYSIS (Last 24h):"
|
|
local avg_rpm peak_concurrent
|
|
avg_rpm=$(calculate_avg_requests_per_minute "$username" 24)
|
|
peak_concurrent=$(calculate_peak_concurrent_requests "$username" 1)
|
|
|
|
echo " Avg Requests/Min: $(echo "$avg_rpm" | cut -d'|' -f1)"
|
|
echo " Peak Concurrent: $(echo "$peak_concurrent" | cut -d'|' -f1)"
|
|
echo ""
|
|
|
|
# 8. Error Analysis
|
|
echo "ERROR ANALYSIS (Last 7 days):"
|
|
local memory_errors max_children_errors timeout_errors slow_requests
|
|
|
|
memory_errors=$(analyze_memory_exhausted_errors "$username" 7 | grep "TOTAL" | cut -d'|' -f1)
|
|
max_children_errors=$(analyze_max_children_errors "$username" 7 | grep "TOTAL" | cut -d'|' -f1)
|
|
timeout_errors=$(analyze_execution_timeout_errors "$username" 7 | grep "TOTAL" | cut -d'|' -f1)
|
|
slow_requests=$(analyze_slow_requests "$username" 7 5 | grep "TOTAL" | cut -d'|' -f1)
|
|
|
|
echo " Memory Exhausted: $memory_errors"
|
|
echo " Max Children Reached: $max_children_errors"
|
|
echo " Execution Timeouts: $timeout_errors"
|
|
echo " Slow Requests (>5s): $slow_requests"
|
|
echo ""
|
|
|
|
# 9. Issues & Recommendations
|
|
echo "ISSUES DETECTED:"
|
|
local issues
|
|
issues=$(detect_php_config_issues "$username" "$domain")
|
|
|
|
while IFS='|' read -r issue_type severity message recommendation; do
|
|
[ -z "$issue_type" ] && continue
|
|
echo " [$severity] $issue_type: $message"
|
|
echo " → $recommendation"
|
|
done <<< "$issues"
|
|
echo ""
|
|
|
|
# 10. Optimization Recommendations
|
|
echo "OPTIMIZATION RECOMMENDATIONS:"
|
|
|
|
# Calculate optimal max_children
|
|
local optimal_max_children
|
|
optimal_max_children=$(calculate_optimal_max_children "$username" 1024)
|
|
local recommended reason
|
|
recommended=$(echo "$optimal_max_children" | cut -d'|' -f1)
|
|
reason=$(echo "$optimal_max_children" | cut -d'|' -f2)
|
|
|
|
local current_max_children
|
|
if [ -n "$pool_config" ] && [ -f "$pool_config" ]; then
|
|
current_max_children=$(grep "^pm.max_children" "$pool_config" | awk -F'=' '{print $2}' | tr -d ' ')
|
|
|
|
if [ "$recommended" -ne "$current_max_children" ]; then
|
|
echo " 1. Adjust pm.max_children from $current_max_children to $recommended"
|
|
echo " Reason: $reason"
|
|
fi
|
|
fi
|
|
|
|
echo ""
|
|
echo "=== End of Report ==="
|
|
}
|
|
|
|
# ============================================================================
|
|
# HELPER FUNCTIONS
|
|
# ============================================================================
|
|
|
|
# Convert human-readable size to bytes
|
|
# Usage: convert_to_bytes "128M"
|
|
convert_to_bytes() {
|
|
local size="$1"
|
|
|
|
# Remove whitespace
|
|
size=$(echo "$size" | tr -d ' ')
|
|
|
|
# Extract number and unit
|
|
local number="${size//[^0-9]/}"
|
|
local unit="${size//[0-9]/}"
|
|
|
|
# Default to bytes if no unit
|
|
[ -z "$unit" ] && echo "$number" && return
|
|
|
|
# Convert based on unit
|
|
case "${unit^^}" in
|
|
K|KB)
|
|
echo $((number * 1024))
|
|
;;
|
|
M|MB)
|
|
echo $((number * 1024 * 1024))
|
|
;;
|
|
G|GB)
|
|
echo $((number * 1024 * 1024 * 1024))
|
|
;;
|
|
*)
|
|
echo "$number"
|
|
;;
|
|
esac
|
|
}
|
|
|
|
# ============================================================================
|
|
# SERVER-WIDE MEMORY CAPACITY ANALYSIS
|
|
# ============================================================================
|
|
|
|
# Calculate total memory required if all PHP-FPM pools hit max capacity
|
|
# Usage: calculate_server_memory_capacity
|
|
# Returns: total_required_mb|total_ram_mb|percentage|status|details
|
|
calculate_server_memory_capacity() {
|
|
echo "Analyzing server-wide PHP-FPM memory capacity..." >&2
|
|
|
|
# Get total system memory
|
|
local total_ram_mb
|
|
total_ram_mb=$(free -m | awk '/^Mem:/ {print $2}')
|
|
|
|
# Get all users
|
|
local users
|
|
users=$(list_all_users)
|
|
|
|
if [ -z "$users" ]; then
|
|
echo "0|$total_ram_mb|0|ERROR|No users found"
|
|
return 1
|
|
fi
|
|
|
|
# Track totals
|
|
local total_required_mb=0
|
|
local total_max_children=0
|
|
local pool_count=0
|
|
local details=""
|
|
|
|
# Iterate through all users
|
|
while IFS= read -r username; do
|
|
[ -z "$username" ] && continue
|
|
|
|
# Find FPM pool config
|
|
local pool_config
|
|
pool_config=$(find_fpm_pool_config "$username")
|
|
|
|
if [ -z "$pool_config" ] || [ ! -f "$pool_config" ]; then
|
|
continue
|
|
fi
|
|
|
|
pool_count=$((pool_count + 1))
|
|
|
|
# Get max_children from pool config
|
|
local max_children
|
|
max_children=$(grep "^pm.max_children" "$pool_config" | awk -F'=' '{print $2}' | tr -d ' ')
|
|
|
|
if [ -z "$max_children" ] || [ "$max_children" -eq 0 ]; then
|
|
max_children=5 # Safe default if not set
|
|
fi
|
|
|
|
# Get average memory per process
|
|
local memory_stats
|
|
memory_stats=$(calculate_memory_per_process "$username")
|
|
|
|
local avg_kb
|
|
avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
|
|
|
|
if [ "$avg_kb" -eq 0 ]; then
|
|
# No active processes, estimate 50MB per process (conservative)
|
|
avg_kb=$((50 * 1024))
|
|
fi
|
|
|
|
local avg_mb=$((avg_kb / 1024))
|
|
|
|
# Calculate max memory for this pool
|
|
local pool_max_mb=$((max_children * avg_mb))
|
|
total_required_mb=$((total_required_mb + pool_max_mb))
|
|
total_max_children=$((total_max_children + max_children))
|
|
|
|
# Add to details
|
|
details+="$username|$max_children|${avg_mb}MB|${pool_max_mb}MB"$'\n'
|
|
|
|
done <<< "$users"
|
|
|
|
# Calculate percentage
|
|
local percentage=$((total_required_mb * 100 / total_ram_mb))
|
|
|
|
# Determine status
|
|
local status
|
|
if [ "$percentage" -gt 90 ]; then
|
|
status="CRITICAL"
|
|
elif [ "$percentage" -gt 75 ]; then
|
|
status="WARNING"
|
|
elif [ "$percentage" -gt 60 ]; then
|
|
status="CAUTION"
|
|
else
|
|
status="HEALTHY"
|
|
fi
|
|
|
|
# Return formatted result
|
|
echo "$total_required_mb|$total_ram_mb|$percentage|$status|$pool_count pools|$total_max_children total max_children"
|
|
|
|
# Return details for further processing (to stderr so it doesn't mix with main output)
|
|
echo "$details" >&2
|
|
}
|
|
|
|
# Calculate optimal memory allocation per user
|
|
# Usage: calculate_balanced_memory_allocation
|
|
# Returns: recommendations for each user to fit within system limits
|
|
calculate_balanced_memory_allocation() {
|
|
echo "Calculating balanced memory allocation..." >&2
|
|
|
|
# Get total system memory
|
|
local total_ram_mb
|
|
total_ram_mb=$(free -m | awk '/^Mem:/ {print $2}')
|
|
|
|
# Reserve memory for system (minimum 2GB or 20% of RAM, whichever is higher)
|
|
local reserved_mb
|
|
reserved_mb=$((total_ram_mb * 20 / 100))
|
|
[ "$reserved_mb" -lt 2048 ] && reserved_mb=2048
|
|
|
|
local available_mb=$((total_ram_mb - reserved_mb))
|
|
|
|
# Get all users with FPM pools
|
|
local users
|
|
users=$(list_all_users)
|
|
|
|
if [ -z "$users" ]; then
|
|
echo "ERROR|No users found"
|
|
return 1
|
|
fi
|
|
|
|
# Collect pool data
|
|
declare -A pool_traffic # Avg requests per minute
|
|
declare -A pool_memory # Avg MB per process
|
|
declare -A pool_max # Current max_children
|
|
declare -A pool_config_file
|
|
|
|
local total_traffic=0
|
|
local pool_count=0
|
|
|
|
while IFS= read -r username; do
|
|
[ -z "$username" ] && continue
|
|
|
|
# Find pool config
|
|
local pool_config
|
|
pool_config=$(find_fpm_pool_config "$username")
|
|
|
|
[ -z "$pool_config" ] || [ ! -f "$pool_config" ] && continue
|
|
|
|
pool_count=$((pool_count + 1))
|
|
pool_config_file[$username]="$pool_config"
|
|
|
|
# Get current max_children
|
|
local max_children
|
|
max_children=$(grep "^pm.max_children" "$pool_config" | awk -F'=' '{print $2}' | tr -d ' ')
|
|
pool_max[$username]=$max_children
|
|
|
|
# Get average memory per process
|
|
local memory_stats
|
|
memory_stats=$(calculate_memory_per_process "$username")
|
|
local avg_kb
|
|
avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
|
|
|
|
if [ "$avg_kb" -eq 0 ]; then
|
|
avg_kb=$((50 * 1024)) # Default 50MB
|
|
fi
|
|
|
|
pool_memory[$username]=$((avg_kb / 1024))
|
|
|
|
# Get traffic stats
|
|
local traffic
|
|
traffic=$(calculate_avg_requests_per_minute "$username" 24 2>/dev/null | cut -d'|' -f1 || echo "1")
|
|
[ "$traffic" -eq 0 ] && traffic=1 # Minimum 1 req/min
|
|
|
|
pool_traffic[$username]=$traffic
|
|
total_traffic=$((total_traffic + traffic))
|
|
|
|
done <<< "$users"
|
|
|
|
if [ "$pool_count" -eq 0 ]; then
|
|
echo "ERROR|No PHP-FPM pools found"
|
|
return 1
|
|
fi
|
|
|
|
# Calculate proportional allocation based on traffic
|
|
echo "USER|CURRENT_MAX|AVG_MB|TRAFFIC_RPM|RECOMMENDED_MAX|ALLOCATED_MB|REASON"
|
|
|
|
for username in "${!pool_traffic[@]}"; do
|
|
local traffic=${pool_traffic[$username]}
|
|
local avg_mb=${pool_memory[$username]}
|
|
local current_max=${pool_max[$username]}
|
|
|
|
# Calculate proportional share of available memory based on traffic
|
|
local traffic_percentage=$((traffic * 100 / total_traffic))
|
|
local allocated_mb=$((available_mb * traffic_percentage / 100))
|
|
|
|
# Calculate recommended max_children for this allocation
|
|
local recommended_max=$((allocated_mb / avg_mb))
|
|
|
|
# Apply limits
|
|
[ "$recommended_max" -lt 5 ] && recommended_max=5 # Minimum 5
|
|
[ "$recommended_max" -gt 200 ] && recommended_max=200 # Maximum 200
|
|
|
|
# Determine reason
|
|
local reason
|
|
if [ "$recommended_max" -lt "$current_max" ]; then
|
|
reason="REDUCE (prevent OOM)"
|
|
elif [ "$recommended_max" -gt "$current_max" ]; then
|
|
reason="INCREASE (traffic demands)"
|
|
else
|
|
reason="OPTIMAL"
|
|
fi
|
|
|
|
echo "$username|$current_max|${avg_mb}MB|$traffic|$recommended_max|${allocated_mb}MB|$reason"
|
|
done
|
|
}
|
|
|
|
# Export all functions
|
|
export -f analyze_memory_exhausted_errors
|
|
export -f analyze_max_children_errors
|
|
export -f analyze_slow_requests
|
|
export -f analyze_execution_timeout_errors
|
|
export -f calculate_memory_per_process
|
|
export -f calculate_optimal_max_children
|
|
export -f calculate_peak_concurrent_requests
|
|
export -f calculate_avg_requests_per_minute
|
|
export -f analyze_opcache_effectiveness
|
|
export -f detect_php_config_issues
|
|
export -f analyze_domain_php
|
|
export -f convert_to_bytes
|
|
export -f calculate_server_memory_capacity
|
|
export -f calculate_balanced_memory_allocation
|