我在MySqlDataReader对象上调用Read()时遇到以下异常。
using (MySqlConnection con = new MySqlConnection(myConnectionString))
{
con.Open();
using (MySqlCommand command = con.CreateCommand())
{
command.CommandText = String.Format("SELECT ID FROM MyTable WHERE ID IN ({0})", idList.ToString());
MySqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
int id = Int32.Parse(reader["ID"].ToString());
if (!idHashSet.Contains(id))
{
idHashSet.Add(id);
}
}
}
}
该程序似乎冻结了大约8个小时,然后最终吐出以下异常和堆栈跟踪。
Timeout can be only be set to 'System.Threading.Timeout.Infinite' or a value > 0.
Parameter name: value
System.Net.Sockets.NetworkStream.set_ReadTimeout(Int32 value)
MySql.Data.MySqlClient.TimedStream.StartTimer(IOKind op)
MySql.Data.MySqlClient.TimedStream.Read(Byte[] buffer, Int32 offset, Int32 count)
System.IO.BufferedStream.Read(Byte[] array, Int32 offset, Int32 count)
MySql.Data.MySqlClient.MySqlStream.ReadFully(Stream stream, Byte[] buffer, Int32 offset, Int32 count)
MySql.Data.MySqlClient.MySqlStream.LoadPacket()
MySql.Data.MySqlClient.MySqlStream.ReadPacket()
MySql.Data.MySqlClient.NativeDriver.FetchDataRow(Int32 statementId, Int32 columns)
MySql.Data.MySqlClient.ResultSet.NextRow(CommandBehavior behavior)
MySql.Data.MySqlClient.MySqlDataReader.Read()
同一错误发生在同一时间的不同代码段,从不同的服务器读取完全不同的表,所以我倾向于认为客户端存在问题。有什么建议吗?
答案 0 :(得分:1)
这可能是这个错误:https://bugs.mysql.com/bug.php?id=75604
如果Environment.TickCount
翻转(服务器正常运行24.9天后),而您正在执行命令,则连接器将抛出您所看到的确切异常。