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#!/bin/bash
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# ===========================================
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# 学生状态变更处理服务健康检查脚本
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# 用于监控服务运行状态和数据库连接
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# ===========================================
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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CONFIG_FILE="${SCRIPT_DIR}/data.conf"
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CONTROL_SCRIPT="${SCRIPT_DIR}/control_scripts.sh"
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Load configuration
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if [[ ! -f "$CONFIG_FILE" ]]; then
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echo -e "${RED}Error: Configuration file $CONFIG_FILE not found!${NC}"
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exit 1
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fi
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source "$CONFIG_FILE"
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# Functions
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log() {
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local level="$1"
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local message="$2"
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local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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echo -e "${timestamp} [$level] $message"
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}
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success() {
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echo -e "${GREEN}✓ $1${NC}"
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}
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error() {
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echo -e "${RED}✗ $1${NC}"
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}
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warning() {
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echo -e "${YELLOW}⚠ $1${NC}"
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}
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info() {
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echo -e "${BLUE}ℹ $1${NC}"
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}
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# Check database connection
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check_database() {
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info "Checking database connection..."
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local db_test
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if db_test=$(mysql -h"$DB_HOST" -P"$DB_PORT" -u"$DB_USER" -p"$DB_PASS" "$DB_NAME" -e "SELECT 1 as test;" 2>/dev/null); then
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if echo "$db_test" | grep -q "test"; then
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success "Database connection successful"
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return 0
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else
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error "Database query failed"
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return 1
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fi
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else
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error "Database connection failed"
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return 1
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fi
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}
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# Check service status
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check_service() {
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local service_name="$1"
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local service_desc="$2"
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info "Checking $service_desc..."
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if [[ ! -x "$CONTROL_SCRIPT" ]]; then
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error "Control script not found or not executable: $CONTROL_SCRIPT"
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return 1
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fi
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local status_output
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status_output=$("$CONTROL_SCRIPT" status "$service_name" 2>/dev/null)
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if echo "$status_output" | grep -q "is running"; then
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success "$service_desc is running"
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# Extract PID if available
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local pid
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pid=$(echo "$status_output" | grep -o "PID: [0-9]*" | cut -d' ' -f2)
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if [[ -n "$pid" ]]; then
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info " Process ID: $pid"
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fi
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return 0
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else
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error "$service_desc is not running"
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return 1
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fi
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}
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# Check log files
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check_logs() {
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info "Checking log files..."
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if [[ ! -d "$LOG_DIR" ]]; then
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warning "Log directory does not exist: $LOG_DIR"
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return 1
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fi
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# Count log files
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local log_count
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log_count=$(find "$LOG_DIR" -name "*.log" -type f | wc -l)
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if [[ $log_count -gt 0 ]]; then
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success "Found $log_count log files"
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# Check for recent errors
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local recent_errors
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recent_errors=$(find "$LOG_DIR" -name "*.log" -type f -mmin -60 -exec grep -l "ERROR" {} \; | wc -l)
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if [[ $recent_errors -gt 0 ]]; then
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warning "Found $recent_errors log files with recent errors (last 60 minutes)"
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else
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info "No recent errors found in log files"
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fi
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return 0
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else
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warning "No log files found"
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return 1
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fi
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}
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# Check pending records
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check_pending_records() {
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info "Checking pending records in database..."
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local pending_changes pending_resume
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# Check changes (XIU_XUE, TUI_XUE, BI_YE)
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pending_changes=$(mysql -h"$DB_HOST" -P"$DB_PORT" -u"$DB_USER" -p"$DB_PASS" "$DB_NAME" -e "
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SELECT COUNT(*) as count FROM xg_student_status_change
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WHERE process_status = 0
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AND change_type IN ('XIU_XUE', 'TUI_XUE', 'BI_YE')
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AND deleted = 0;
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" 2>/dev/null | tail -n1)
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# Check resume (FU_XUE)
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pending_resume=$(mysql -h"$DB_HOST" -P"$DB_PORT" -u"$DB_USER" -p"$DB_PASS" "$DB_NAME" -e "
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SELECT COUNT(*) as count FROM xg_student_status_change
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WHERE process_status = 0
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AND change_type = 'FU_XUE'
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AND deleted = 0;
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" 2>/dev/null | tail -n1)
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# Remove potential header
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pending_changes=$(echo "$pending_changes" | grep -E '^[0-9]+$')
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pending_resume=$(echo "$pending_resume" | grep -E '^[0-9]+$')
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if [[ -z "$pending_changes" ]]; then
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pending_changes="0"
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fi
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if [[ -z "$pending_resume" ]]; then
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pending_resume="0"
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fi
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local total_pending=$((pending_changes + pending_resume))
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if [[ $total_pending -gt 0 ]]; then
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info "Found $total_pending pending records ($pending_changes changes, $pending_resume resume)"
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if [[ $pending_changes -gt 0 ]]; then
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warning " $pending_changes records waiting for changes processing"
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fi
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if [[ $pending_resume -gt 0 ]]; then
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warning " $pending_resume records waiting for resume processing"
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fi
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else
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success "No pending records found"
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fi
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return 0
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}
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# Check disk space
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check_disk_space() {
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info "Checking disk space..."
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local log_disk_usage
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log_disk_usage=$(df "$LOG_DIR" 2>/dev/null | tail -n1 | awk '{print $5}' | sed 's/%//')
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if [[ -z "$log_disk_usage" ]]; then
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warning "Cannot determine log directory disk usage"
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return 1
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fi
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if [[ $log_disk_usage -gt 90 ]]; then
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error "Log directory disk usage is ${log_disk_usage}% - consider cleaning up old logs"
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return 1
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elif [[ $log_disk_usage -gt 75 ]]; then
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warning "Log directory disk usage is ${log_disk_usage}%"
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else
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success "Log directory disk usage is ${log_disk_usage}%"
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fi
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return 0
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}
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# Generate health report
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generate_report() {
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local report_file="${LOG_DIR}/health_check_$(date +%Y%m%d_%H%M%S).log"
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{
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echo "=== 学生状态变更处理服务健康检查报告 ==="
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echo "检查时间: $(date)"
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echo "检查主机: $(hostname)"
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echo ""
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echo "=== 数据库连接检查 ==="
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if check_database; then
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echo "状态: 正常"
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else
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echo "状态: 异常"
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fi
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echo ""
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echo "=== 服务状态检查 ==="
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echo "学生状态变更处理服务 (休学/退学/毕业):"
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if check_service "changes" "学生状态变更处理服务"; then
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echo "状态: 运行中"
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else
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echo "状态: 未运行"
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fi
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echo "学生复学处理服务:"
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if check_service "resume" "学生复学处理服务"; then
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echo "状态: 运行中"
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else
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echo "状态: 未运行"
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fi
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echo ""
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echo "=== 待处理记录检查 ==="
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check_pending_records
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echo ""
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echo "=== 日志文件检查 ==="
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check_logs
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echo ""
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echo "=== 磁盘空间检查 ==="
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check_disk_space
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echo ""
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echo "=== 配置信息 ==="
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echo "数据库主机: $DB_HOST:$DB_PORT"
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echo "数据库名称: $DB_NAME"
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echo "日志目录: $LOG_DIR"
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echo "脚本目录: $SCRIPT_DIR"
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echo ""
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echo "报告生成完成"
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} > "$report_file" 2>/dev/null
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if [[ -f "$report_file" ]]; then
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success "Health check report generated: $report_file"
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else
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error "Failed to generate health check report"
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fi
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}
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# Main function
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main() {
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local generate_report="${1:-false}"
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echo ""
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echo "========================================"
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echo " 学生状态变更处理服务健康检查"
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echo "========================================"
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echo ""
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# Perform all checks
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check_database
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echo ""
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check_service "changes" "学生状态变更处理服务 (休学/退学/毕业)"
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check_service "resume" "学生复学处理服务"
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echo ""
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check_pending_records
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echo ""
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check_logs
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echo ""
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check_disk_space
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echo ""
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# Generate report if requested
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if [[ "$generate_report" == "report" ]]; then
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generate_report
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fi
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echo ""
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echo "========================================"
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success "健康检查完成"
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echo ""
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if [[ "$generate_report" == "report" ]]; then
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echo "详细报告已保存到日志目录"
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fi
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echo "使用方法："
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echo " $0 # 执行健康检查"
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echo " $0 report # 执行检查并生成报告"
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echo ""
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}
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# Show usage
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show_usage() {
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cat << EOF
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Usage: $0 [report]
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执行学生状态变更处理服务的健康检查。
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Options:
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report 生成详细的健康检查报告
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检查内容：
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- 数据库连接状态
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- 服务运行状态
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- 待处理记录数量
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- 日志文件状态
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- 磁盘空间使用情况
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EOF
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}
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# Parse arguments
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case "${1:-}" in
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report)
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main "report"
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;;
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-h|--help)
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show_usage
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;;
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"")
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main
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;;
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*)
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error "Unknown option: $1"
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show_usage
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exit 1
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;;
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esac
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