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Linux-Server-Management-Too…/lib/php-analyzer.sh
T
cschantz f74cf1d9ea Phase 2: Add comprehensive PHP analysis engine (lib/php-analyzer.sh)
ANALYSIS CAPABILITIES (12 functions):
- Error log analysis (memory exhausted, max_children, timeouts, slow requests)
- Resource usage calculations (memory per process, optimal max_children)
- Traffic analysis (peak concurrent requests, avg requests/minute)
- OPcache effectiveness analysis (hit rate, memory usage, recommendations)
- Configuration issue detection (security, performance, capacity issues)
- Complete domain analysis reporting

ERROR LOG ANALYSIS:
- analyze_memory_exhausted_errors: Track "Allowed memory size exhausted"
- analyze_max_children_errors: Detect "server reached pm.max_children" (CRITICAL!)
- analyze_slow_requests: Parse slow request logs, track slowest scripts
- analyze_execution_timeout_errors: Find "Maximum execution time exceeded"

RESOURCE CALCULATIONS:
- calculate_memory_per_process: Average KB per PHP-FPM process
- calculate_optimal_max_children: Intelligent calculation based on:
  * Available system memory (total - reserved)
  * Average memory per process
  * 20% safety buffer
  * Minimum sanity checks

TRAFFIC ANALYSIS:
- calculate_peak_concurrent_requests: Peak concurrent from access logs
- calculate_avg_requests_per_minute: Average load over time period

OPCACHE ANALYSIS:
- analyze_opcache_effectiveness: Status, hit rate, memory usage, recommendations
  * Detects if disabled (40-70% perf loss!)
  * Calculates hit rate (should be >90%)
  * Checks wasted memory and cache capacity

ISSUE DETECTION (7 critical checks):
- detect_php_config_issues: Comprehensive configuration validation
  1. post_max_size < upload_max_filesize (CRITICAL - uploads fail)
  2. display_errors = On (HIGH - security risk)
  3. memory_limit too low (MEDIUM - performance issue)
  4. pm.max_children errors (CRITICAL - capacity issue)
  5. Memory exhausted errors (HIGH - need more RAM or optimization)
  6. OPcache disabled or low hit rate (HIGH/MEDIUM - performance)
  7. pm.max_requests = 0 (MEDIUM - memory leaks accumulate)
  8. pm = static on low traffic (LOW - wastes memory)

COMPREHENSIVE REPORTING:
- analyze_domain_php: Complete analysis report including:
  * PHP version detection
  * Configuration hierarchy (4 priority levels)
  * Effective settings (memory, execution, uploads)
  * PHP-FPM pool configuration
  * Resource usage (processes, memory)
  * OPcache status and hit rates
  * Traffic analysis (24h)
  * Error analysis (7 days)
  * Issues detected with severity levels
  * Optimization recommendations with reasoning

HELPER FUNCTIONS:
- convert_to_bytes: Parse human-readable sizes (128M → bytes)

INTEGRATION:
- Uses lib/php-detector.sh for all detection
- Uses lib/system-detect.sh for system info
- All functions exported for use by main optimizer

NEXT PHASE: modules/performance/php-optimizer.sh (interactive menu + apply changes)
2025-12-02 20:28:27 -05:00

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#!/bin/bash
# PHP Analysis Engine - Analyzes PHP configurations and identifies issues
# Part of Server Toolkit - Phase 2: Analysis
# Dependencies: lib/php-detector.sh, lib/system-detect.sh
# Source required libraries
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/php-detector.sh" 2>/dev/null || { echo "ERROR: php-detector.sh not found"; exit 1; }
source "$SCRIPT_DIR/system-detect.sh" 2>/dev/null || { echo "ERROR: system-detect.sh not found"; exit 1; }
# ============================================================================
# ERROR LOG ANALYSIS
# ============================================================================
# Analyze PHP error logs for memory exhausted errors
# Usage: analyze_memory_exhausted_errors <username> <days>
# Returns: count|file pairs
analyze_memory_exhausted_errors() {
local username="$1"
local days="${2:-7}" # Default last 7 days
local error_logs
error_logs=$(find_php_error_logs "$username")
if [ -z "$error_logs" ]; then
echo "0|No logs found"
return
fi
local total_count=0
local results=""
while IFS= read -r log_file; do
[ ! -f "$log_file" ] && continue
# Find errors in last N days
local count
count=$(find "$log_file" -mtime -"$days" -exec grep -c "Allowed memory size.*exhausted" {} \; 2>/dev/null || echo "0")
if [ "$count" -gt 0 ]; then
total_count=$((total_count + count))
results+="$count|$log_file"$'\n'
fi
done <<< "$error_logs"
echo -e "$total_count|TOTAL\n$results"
}
# Analyze PHP-FPM error logs for max_children errors
# Usage: analyze_max_children_errors <username> <days>
# Returns: count|timestamp|pool format
analyze_max_children_errors() {
local username="$1"
local days="${2:-7}"
local fpm_logs
fpm_logs=$(find_fpm_error_logs "$username")
if [ -z "$fpm_logs" ]; then
echo "0|No FPM logs found"
return
fi
local total_count=0
local results=""
while IFS= read -r log_file; do
[ ! -f "$log_file" ] && continue
# Find max_children errors with timestamps
local errors
errors=$(find "$log_file" -mtime -"$days" -exec grep -E "server reached (pm\.)?max_children" {} \; 2>/dev/null)
if [ -n "$errors" ]; then
local count
count=$(echo "$errors" | wc -l)
total_count=$((total_count + count))
# Extract most recent occurrence
local last_occurrence
last_occurrence=$(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 '[]')
results+="$count|$last_occurrence|$(basename "$log_file")"$'\n'
fi
done <<< "$fpm_logs"
echo -e "$total_count|TOTAL\n$results"
}
# Analyze slow request logs
# Usage: analyze_slow_requests <username> <days> <threshold_seconds>
# Returns: count|script|duration format
analyze_slow_requests() {
local username="$1"
local days="${2:-7}"
local threshold="${3:-5}" # Default 5 seconds
local slow_logs
slow_logs=$(find_fpm_slow_logs "$username")
if [ -z "$slow_logs" ]; then
echo "0|No slow logs found"
return
fi
local total_count=0
local results=""
declare -A slow_scripts
while IFS= read -r log_file; do
[ ! -f "$log_file" ] && continue
# Parse slow log format
# [pool www] pid 12345
# script_filename = /path/to/script.php
# [duration] 7.123456
local entries
entries=$(find "$log_file" -mtime -"$days" -exec grep -A2 "^\[" {} \; 2>/dev/null)
if [ -n "$entries" ]; then
local script=""
local duration=""
while IFS= read -r line; do
if [[ "$line" =~ script_filename.*=\ (.+)$ ]]; then
script="${BASH_REMATCH[1]}"
elif [[ "$line" =~ ^\[.*\]\ ([0-9]+\.[0-9]+)$ ]]; then
duration="${BASH_REMATCH[1]}"
# Check if exceeds threshold
if [ -n "$script" ] && [ -n "$duration" ]; then
local duration_int=${duration%.*}
if [ "$duration_int" -ge "$threshold" ]; then
total_count=$((total_count + 1))
# Track slowest occurrence per script
if [ -z "${slow_scripts[$script]}" ] || (( $(echo "${slow_scripts[$script]} < $duration" | bc -l) )); then
slow_scripts[$script]="$duration"
fi
fi
fi
script=""
duration=""
fi
done <<< "$entries"
fi
done <<< "$slow_logs"
# Format results
for script in "${!slow_scripts[@]}"; do
results+="1|$script|${slow_scripts[$script]}s"$'\n'
done
echo -e "$total_count|TOTAL\n$results"
}
# Analyze execution timeout errors
# Usage: analyze_execution_timeout_errors <username> <days>
analyze_execution_timeout_errors() {
local username="$1"
local days="${2:-7}"
local error_logs
error_logs=$(find_php_error_logs "$username")
if [ -z "$error_logs" ]; then
echo "0|No logs found"
return
fi
local total_count=0
local results=""
while IFS= read -r log_file; do
[ ! -f "$log_file" ] && continue
local count
count=$(find "$log_file" -mtime -"$days" -exec grep -c "Maximum execution time.*exceeded" {} \; 2>/dev/null || echo "0")
if [ "$count" -gt 0 ]; then
total_count=$((total_count + count))
results+="$count|$log_file"$'\n'
fi
done <<< "$error_logs"
echo -e "$total_count|TOTAL\n$results"
}
# ============================================================================
# RESOURCE USAGE CALCULATIONS
# ============================================================================
# Calculate average memory per PHP-FPM process
# Usage: calculate_memory_per_process <username>
# Returns: average_kb|total_processes|total_memory_mb
calculate_memory_per_process() {
local username="$1"
local memory_stats
memory_stats=$(get_fpm_memory_usage "$username")
if [ -z "$memory_stats" ] || [[ "$memory_stats" == "0|0" ]]; then
echo "0|0|0"
return
fi
local avg_kb total_mb
avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
total_mb=$(echo "$memory_stats" | cut -d'|' -f2)
local process_count
process_count=$(get_fpm_process_count "$username")
echo "$avg_kb|$process_count|$total_mb"
}
# Calculate optimal max_children based on available memory
# Usage: calculate_optimal_max_children <username> [reserved_mb]
# Returns: recommended_max_children|reason
calculate_optimal_max_children() {
local username="$1"
local reserved_mb="${2:-1024}" # Reserve 1GB for system by default
# Get current memory usage
local memory_stats
memory_stats=$(calculate_memory_per_process "$username")
local avg_kb process_count
avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
process_count=$(echo "$memory_stats" | cut -d'|' -f2)
if [ "$avg_kb" -eq 0 ]; then
echo "0|No active processes to measure"
return
fi
# Get total system memory
local total_mem_mb
total_mem_mb=$(free -m | awk '/^Mem:/ {print $2}')
# Calculate available memory for PHP-FPM
local available_mb=$((total_mem_mb - reserved_mb))
# Convert average KB to MB
local avg_mb=$((avg_kb / 1024))
# Calculate max children (with 20% safety buffer)
local theoretical_max=$((available_mb / avg_mb))
local recommended=$((theoretical_max * 80 / 100))
# Sanity checks
if [ "$recommended" -lt 5 ]; then
recommended=5
echo "$recommended|Minimum safe value (memory very limited)"
elif [ "$recommended" -lt "$process_count" ]; then
echo "$recommended|WARNING: Less than current process count ($process_count)"
else
echo "$recommended|Based on ${avg_mb}MB avg per process, ${available_mb}MB available"
fi
}
# Calculate peak concurrent requests from access logs
# Usage: calculate_peak_concurrent_requests <username> <days>
# Returns: peak_concurrent|timestamp
calculate_peak_concurrent_requests() {
local username="$1"
local days="${2:-1}" # Default last 24 hours
# Find access logs
local access_logs
access_logs=$(find /home/"$username"/*/logs -name "access_log*" -o -name "access.log*" 2>/dev/null)
if [ -z "$access_logs" ]; then
echo "0|No access logs found"
return
fi
# Analyze logs in 1-second windows to find peak concurrency
# This is a simplified estimation based on request timestamps
local peak=0
local peak_time=""
while IFS= read -r log_file; do
[ ! -f "$log_file" ] && continue
# Extract timestamps and count requests per second
local log_data
if [[ "$log_file" == *.gz ]]; then
log_data=$(zcat "$log_file" 2>/dev/null || continue)
else
log_data=$(cat "$log_file" 2>/dev/null || continue)
fi
# Apache/Nginx common log format timestamp extraction
local per_second
per_second=$(echo "$log_data" | \
grep -oE '\[[0-9]{2}/[A-Za-z]{3}/[0-9]{4}:[0-9]{2}:[0-9]{2}:[0-9]{2}' | \
sort | uniq -c | sort -rn | head -1)
if [ -n "$per_second" ]; then
local count timestamp
count=$(echo "$per_second" | awk '{print $1}')
timestamp=$(echo "$per_second" | awk '{print $2}' | tr -d '[')
if [ "$count" -gt "$peak" ]; then
peak=$count
peak_time=$timestamp
fi
fi
done <<< "$access_logs"
echo "$peak|$peak_time"
}
# Calculate requests per minute average
# Usage: calculate_avg_requests_per_minute <username> <hours>
calculate_avg_requests_per_minute() {
local username="$1"
local hours="${2:-24}"
local access_logs
access_logs=$(find /home/"$username"/*/logs -name "access_log" -o -name "access.log" 2>/dev/null | head -1)
if [ -z "$access_logs" ]; then
echo "0|No access logs"
return
fi
# Count total requests in last N hours
local total_requests
total_requests=$(find "$access_logs" -mmin -$((hours * 60)) -exec wc -l {} \; 2>/dev/null | awk '{sum+=$1} END {print sum}')
if [ -z "$total_requests" ] || [ "$total_requests" -eq 0 ]; then
echo "0|No recent requests"
return
fi
# Calculate average per minute
local total_minutes=$((hours * 60))
local avg_per_min=$((total_requests / total_minutes))
echo "$avg_per_min|Last $hours hours"
}
# ============================================================================
# OPCACHE ANALYSIS
# ============================================================================
# Analyze OPcache effectiveness
# Usage: analyze_opcache_effectiveness <username>
# Returns: status|hit_rate|memory_used_mb|cached_scripts|recommendation
analyze_opcache_effectiveness() {
local username="$1"
# Check if OPcache is enabled
local enabled
enabled=$(check_opcache_enabled "$username")
if [ "$enabled" != "1" ]; then
echo "DISABLED|0|0|0|Enable OPcache for 40-70% performance boost"
return
fi
# Get OPcache statistics
local stats
stats=$(get_opcache_stats "$username")
if [ -z "$stats" ]; then
echo "ENABLED|0|0|0|Unable to retrieve statistics"
return
fi
# Parse statistics
local memory_used hits misses cached_scripts max_cached wasted
memory_used=$(echo "$stats" | grep "memory_usage_mb" | cut -d'=' -f2)
hits=$(echo "$stats" | grep "^hits=" | cut -d'=' -f2)
misses=$(echo "$stats" | grep "^misses=" | cut -d'=' -f2)
cached_scripts=$(echo "$stats" | grep "num_cached_scripts=" | cut -d'=' -f2)
max_cached=$(echo "$stats" | grep "max_cached_keys=" | cut -d'=' -f2)
wasted=$(echo "$stats" | grep "wasted_memory_mb=" | cut -d'=' -f2)
# Calculate hit rate
local hit_rate
hit_rate=$(calculate_opcache_hit_rate "$username")
# Generate recommendation
local recommendation=""
if (( $(echo "$hit_rate < 90" | bc -l) )); then
recommendation="Hit rate below 90% - Increase opcache.memory_consumption"
elif (( $(echo "$wasted > 5" | bc -l) )); then
recommendation="High wasted memory (${wasted}MB) - Consider increasing opcache.max_accelerated_files"
elif (( $(echo "$cached_scripts > $max_cached * 0.8" | bc -l) )); then
recommendation="Cached scripts at 80% capacity - Increase opcache.max_accelerated_files"
else
recommendation="OPcache performing optimally"
fi
echo "ENABLED|$hit_rate|$memory_used|$cached_scripts|$recommendation"
}
# ============================================================================
# CONFIGURATION ISSUE DETECTION
# ============================================================================
# Detect common PHP configuration issues
# Usage: detect_php_config_issues <username> <domain>
# Returns: multiline issue_type|severity|message|recommendation
detect_php_config_issues() {
local username="$1"
local domain="$2"
local issues=""
# Get all effective settings
local settings
settings=$(get_all_php_settings "$username")
# Extract key settings
local memory_limit upload_max post_max max_execution display_errors
memory_limit=$(echo "$settings" | grep "^memory_limit=" | cut -d'=' -f2)
upload_max=$(echo "$settings" | grep "^upload_max_filesize=" | cut -d'=' -f2)
post_max=$(echo "$settings" | grep "^post_max_size=" | cut -d'=' -f2)
max_execution=$(echo "$settings" | grep "^max_execution_time=" | cut -d'=' -f2)
display_errors=$(echo "$settings" | grep "^display_errors=" | cut -d'=' -f2)
# Convert to bytes for comparison
local upload_bytes post_bytes
upload_bytes=$(convert_to_bytes "$upload_max")
post_bytes=$(convert_to_bytes "$post_max")
# ISSUE 1: post_max_size < upload_max_filesize
if [ "$post_bytes" -lt "$upload_bytes" ]; then
issues+="CONFIG_MISMATCH|CRITICAL|post_max_size ($post_max) < upload_max_filesize ($upload_max)|Set post_max_size >= upload_max_filesize"$'\n'
fi
# ISSUE 2: display_errors = On in production
if [[ "$display_errors" =~ ^(On|1)$ ]]; then
issues+="SECURITY|HIGH|display_errors is enabled|Set display_errors = Off in production (security risk)"$'\n'
fi
# ISSUE 3: memory_limit too low
local memory_bytes
memory_bytes=$(convert_to_bytes "$memory_limit")
if [ "$memory_bytes" -lt $((128 * 1024 * 1024)) ]; then
issues+="PERFORMANCE|MEDIUM|memory_limit is very low ($memory_limit)|Consider increasing to at least 128M"$'\n'
fi
# ISSUE 4: Check for max_children errors
local max_children_errors
max_children_errors=$(analyze_max_children_errors "$username" 7)
local error_count
error_count=$(echo "$max_children_errors" | grep "TOTAL" | cut -d'|' -f1)
if [ "$error_count" -gt 0 ]; then
issues+="CAPACITY|CRITICAL|pm.max_children limit reached $error_count times in last 7 days|Increase pm.max_children setting"$'\n'
fi
# ISSUE 5: Check for memory exhausted errors
local memory_errors
memory_errors=$(analyze_memory_exhausted_errors "$username" 7)
error_count=$(echo "$memory_errors" | grep "TOTAL" | cut -d'|' -f1)
if [ "$error_count" -gt 0 ]; then
issues+="MEMORY|HIGH|Memory exhausted errors occurred $error_count times in last 7 days|Increase memory_limit or optimize code"$'\n'
fi
# ISSUE 6: OPcache disabled or ineffective
local opcache_status
opcache_status=$(analyze_opcache_effectiveness "$username")
local status hit_rate
status=$(echo "$opcache_status" | cut -d'|' -f1)
hit_rate=$(echo "$opcache_status" | cut -d'|' -f2)
if [ "$status" = "DISABLED" ]; then
issues+="PERFORMANCE|HIGH|OPcache is disabled|Enable OPcache for 40-70% performance improvement"$'\n'
elif (( $(echo "$hit_rate < 90" | bc -l) )); then
issues+="PERFORMANCE|MEDIUM|OPcache hit rate is low (${hit_rate}%)|Increase opcache.memory_consumption"$'\n'
fi
# ISSUE 7: Check FPM pool configuration
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")
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
}
# 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