private long StartMoveMQID(string fromtablename, PartitionIDInfo info, Dictionary <int, tb_datanode_model> datanodemodels, tb_partition_model p, DateTime tabletime)
{
long r = -1;
SqlHelper.ExcuteSql(this.GetDataNodeConnectString(datanodemodels[info.DataNodePartition]), (c) =>
{
bool exsit = c.TableIsExist(fromtablename);
if (exsit == true)
{
tb_messagequeue_dal dal = new tb_messagequeue_dal(); dal.TableName = fromtablename;
long maxid = dal.GetMaxID(c); long minid = dal.GetMinID(c);
int findcount = 0;
while (findcount <= 30)//二分查找算法,超过30次意味着算法若对，查询过一亿的数据，说明算法有问题
{
findcount++;
KeyValuePair <long, DateTime> mininfo = dal.GetIDCreateTime(c, minid); KeyValuePair <long, DateTime> maxinfo = dal.GetIDCreateTime(c, maxid);
if (mininfo.Value.Date <= tabletime.Date && maxinfo.Value.Date > tabletime.Date)//最小id小于等于当天，最大id>当天，说明中间有数据要迁移
{
var midid = (long)((maxinfo.Key + mininfo.Key) / 2); KeyValuePair <long, DateTime> midinfo = dal.GetIDCreateTime(c, midid);
if (midinfo.Value.Date <= tabletime.Date)//往大的查找
{
minid = midid;
}
else//往小的查找
{
maxid = minid;
}
System.Threading.Thread.Sleep(50); //避免给数据库大的压力
}
else if (mininfo.Value.Date > tabletime.Date) //最小id的时间超过表当天
{
r = mininfo.Key; return;
}
else if (maxinfo.Value.Date <= tabletime.Date)//最大id的时间小于或等同当天
{
r = maxinfo.Key; return;
}
}
if (findcount >= 30)
{
throw new Exception("二分查找算法错误，查找次数超过30次");
}
}
});
return(r);
}
/// <summary>
/// 任务调度平台根据发布的任务时间配置，定时回调运行方法
/// 开发人员的任务插件必须要重载并该方法
/// </summary>
public override void Run()
{
runcount++;
ConfigHelper.LoadConfig(this.AppConfig["BusinessMQManageConnectString"]);
List <tb_partition_model> userdpartitions = new List <tb_partition_model>();
Dictionary <int, tb_datanode_model> datanodemodels = new Dictionary <int, tb_datanode_model>();
List <RegisterdConsumersModel> registeredconsumermodels = new List <RegisterdConsumersModel>();
List <tb_consumer_model> consumers = new List <tb_consumer_model>();
DateTime servertime = DateTime.Now;
SqlHelper.ExcuteSql(this.AppConfig["BusinessMQManageConnectString"], (c) =>
{
tb_partition_dal partitiondal = new tb_partition_dal();
userdpartitions = partitiondal.List(c, true);
tb_datanode_dal datanodedal = new tb_datanode_dal();
var ms = datanodedal.List(c);
foreach (var m in ms)
{
datanodemodels.Add(m.datanodepartition, m);
}
servertime = c.GetServerDate();
//获取当前注册的消费者
tb_consumer_dal consumerdal = new tb_consumer_dal();
registeredconsumermodels = consumerdal.GetRegisterdConsumers(c);
consumers = consumerdal.GetAllList(c);
});
//消费者端心跳停止,异常退出检测(超过1分钟)
List <Exception> exps = new List <Exception>();
foreach (var c in consumers)
{
if ((servertime - c.lastheartbeat) > TimeSpan.FromMinutes(1))
{
exps.Add(new Exception(string.Format("当前消费者tempid:{0},consumerclientid:{1}", c.tempid, c.consumerclientid)));
}
}
Error(this.AppConfig["BusinessMQManageConnectString"], "消费者端心跳停止,异常退出检测(超过1分钟),若是异常停止,请手工清除消费者中断", exps);
//消费者端长时间无消费，但是还有多余消息（超过10分钟未消费,但还有多余消息未消费）
exps.Clear();
foreach (var c in registeredconsumermodels)
{
if ((servertime - c.consumerpartitionmodel.lastupdatetime) > TimeSpan.FromMinutes(10))
{
var partitionidinfo = XXF.BaseService.MessageQuque.BusinessMQ.SystemRuntime.PartitionRuleHelper.GetPartitionIDInfo(c.consumerpartitionmodel.partitionid);
var tablename = XXF.BaseService.MessageQuque.BusinessMQ.SystemRuntime.PartitionRuleHelper.GetTableName(partitionidinfo.TablePartition, servertime.Date);
SqlHelper.ExcuteSql(this.GetDataNodeConnectString(datanodemodels[partitionidinfo.DataNodePartition]), (conn) =>
{
tb_messagequeue_dal messagedal = new tb_messagequeue_dal(); messagedal.TableName = tablename;
long maxmqid = messagedal.GetMaxID(conn);
if (maxmqid > c.consumerpartitionmodel.lastmqid && (servertime - messagedal.GetIDCreateTime(conn, maxmqid).Value > TimeSpan.FromMinutes(10)))//还有消息未消费，且该消息的创建时间是10分钟前
{
exps.Add(new Exception(string.Format("当前消费者tempid:{0},consumerclientid:{1},client:{2},clientname:{3}", c.consumermodel.tempid,
c.consumermodel.consumerclientid, c.consumerclientmodel.client, c.consumermodel.clientname)));
}
});
}
}
Error(this.AppConfig["BusinessMQManageConnectString"], "消费者端长时间无消费，但是还有多余消息（超过已创建超过10分钟的消息未消费）,可能是消费者处理逻辑异常", exps);
//某个分区没有指定消费者(分区没有消费信息,或者分区消费最后消费时间超过1个小时无消费)
exps.Clear();
if (runcount % (12 * 6) == 0)
{
foreach (var u in userdpartitions)
{
bool isfind = false;
foreach (var c in registeredconsumermodels)
{
if (c.consumerpartitionmodel.partitionid == u.partitionid)
{
isfind = true; break;
}
}
if (isfind == false)
{
SqlHelper.ExcuteSql(this.AppConfig["BusinessMQManageConnectString"], (c) =>
{
tb_consumer_partition_dal dal = new tb_consumer_partition_dal();
var model = dal.GetByPartitionId(c, u.partitionid);
if (model == null)
{
exps.Add(new Exception(string.Format("分区{0}未指定消费者", u.partitionid)));
}
//else if((servertime - model.lastupdatetime) > TimeSpan.FromHours(24))
// exps.Add(new Exception(string.Format("分区{0}消费者已注销,且有1天未消费", u.partitionid)));
});
}
}
Error(this.AppConfig["BusinessMQManageConnectString"], "某个分区没有指定消费者(分区没有消费信息)", exps);
}
}