多线程+异步 遇到的异常：关键业务未执行前就结束了主线程

/// <summary>
    /// 群发活动服务
    /// </summary>
    public class EnterpriseGroupSendJob : IRecurringJob
    {

        private readonly ILogger<EnterpriseGroupSendJob> _logger;
        private readonly string ConnectionString = ConfigurationManager.GetValue("ConnectionString");
        private readonly IEnterpriseGroupSendService _groupService;
        private static object TaskLock = new object();
        public EnterpriseGroupSendJob(ILogger<EnterpriseGroupSendJob> logger, IEnterpriseGroupSendService groupService)
        {
            _logger = logger;
            _groupService = groupService;
        }

        public void Execute(PerformContext context)
        {
            //_logger.LogInformation($"【EnterpriseGroupSendJob】");
            lock (TaskLock)
            {
                //1：获取群发消息主表
                //1.1：如果处于待发送 状态 并且时间 小于等于当前时间的
                //2：获取 根据商户  获取这部分的 群发活动 子表数据

                //3：根据商户 开启线程 请求 wehub接口 （文本、图片、视频）
                //3.1：更新 群发活动主表表 状态 （加锁 TaskLock 不会执行两次），

                //4：在task里写回调更新 字表的 发送状态

                //5：将群发消息推送到crm逻辑：
                //5.1 表 enterprise_message 与易赚关联表  enterprise_send_msg 消息体记录表 enterprise_groupsend_detail 业务表 三表通过guid关联
                //5.2 生成数据时将三表数据统一生成，发送逻辑不变  更新 send_msg表的 update状态 
                //5.3 回调里需要根据uuid customerid找到 send_msg 表里的 requestmsg 同步给crm 
                var sqlTitle = "企业微信-群发活动服务" + DateTime.Now;
                _logger.LogInformation($"【{sqlTitle}开始】");
                var baseDate = DateTime.Now;
                var groupSendMainList = _groupService.GetGroupSendMainIdList(baseDate);
                if (groupSendMainList.Count() == 0)
                {
                    //_logger.LogInformation($"【{sqlTitle} 未查询到群发活动】");
                    return;
                }

                var groupSendDetailList = _groupService.GetGroupSendDetailList(groupSendMainList);
                if (groupSendDetailList.Count() == 0)
                {
                    //_logger.LogInformation($"【{sqlTitle} 未查询到群发活动子表数据】");
                    return;
                }
                groupSendDetailList = _groupService.GetEligibleGroup(groupSendDetailList, sqlTitle, baseDate);
                if (groupSendDetailList.Count() == 0)
                {
                    //_logger.LogInformation($"【{sqlTitle} 没有符合企业微信有效期内条件的群发活动子表数据】");
                    return;
                }
                ParallelOptions parallelOptions = new ParallelOptions() { MaxDegreeOfParallelism = Convert.ToInt32(ConfigurationManager.GetValue("GroupSendCondition:TaskCount")) };

                Parallel.ForEach(groupSendDetailList.DistinctEx(s => s.CompId).Select(s => s.CompId).ToList(), parallelOptions,groupSendCompId =>
                    {
                        _groupService.GroupSend(groupSendMainList.Where(s => s.CompId == groupSendCompId).ToList(), groupSendDetailList.Where(s => s.CompId == groupSendCompId).ToList(), sqlTitle);
                    });
                

                _logger.LogInformation($"【{sqlTitle}结束】");

            }
        }

    }