EventLog.OverflowAction Properti
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Mendapatkan perilaku yang dikonfigurasi untuk menyimpan entri baru ketika log peristiwa mencapai ukuran file log maksimumnya.
public:
property System::Diagnostics::OverflowAction OverflowAction { System::Diagnostics::OverflowAction get(); };
[System.ComponentModel.Browsable(false)]
public System.Diagnostics.OverflowAction OverflowAction { get; }
[System.ComponentModel.Browsable(false)]
[System.Runtime.InteropServices.ComVisible(false)]
public System.Diagnostics.OverflowAction OverflowAction { get; }
[<System.ComponentModel.Browsable(false)>]
member this.OverflowAction : System.Diagnostics.OverflowAction
[<System.ComponentModel.Browsable(false)>]
[<System.Runtime.InteropServices.ComVisible(false)>]
member this.OverflowAction : System.Diagnostics.OverflowAction
Public ReadOnly Property OverflowAction As OverflowAction
Nilai Properti
Nilai OverflowAction yang menentukan perilaku yang dikonfigurasi untuk menyimpan entri baru saat log peristiwa mencapai ukuran log maksimumnya. Default adalah OverwriteOlder.
- Atribut
Contoh
Contoh berikut menghitung log peristiwa yang ditentukan di komputer lokal, dan menampilkan detail konfigurasi untuk setiap log peristiwa.
void DisplayEventLogProperties()
{
// Iterate through the current set of event log files,
// displaying the property settings for each file.
array<EventLog^>^eventLogs = EventLog::GetEventLogs();
System::Collections::IEnumerator^ myEnum = eventLogs->GetEnumerator();
while ( myEnum->MoveNext() )
{
EventLog^ e = safe_cast<EventLog^>(myEnum->Current);
Int64 sizeKB = 0;
Console::WriteLine();
Console::WriteLine( "{0}:", e->LogDisplayName );
Console::WriteLine( " Log name = \t\t {0}", e->Log );
Console::WriteLine( " Number of event log entries = {0}", e->Entries->Count );
// Determine if there is a file for this event log.
RegistryKey ^ regEventLog = Registry::LocalMachine->OpenSubKey( String::Format( "System\\CurrentControlSet\\Services\\EventLog\\{0}", e->Log ) );
if ( regEventLog )
{
Object^ temp = regEventLog->GetValue( "File" );
if ( temp != nullptr )
{
Console::WriteLine( " Log file path = \t {0}", temp );
FileInfo^ file = gcnew FileInfo( temp->ToString() );
// Get the current size of the event log file.
if ( file->Exists )
{
sizeKB = file->Length / 1024;
if ( (file->Length % 1024) != 0 )
{
sizeKB++;
}
Console::WriteLine( " Current size = \t {0} kilobytes", sizeKB );
}
}
else
{
Console::WriteLine( " Log file path = \t <not set>" );
}
}
// Display the maximum size and overflow settings.
sizeKB = e->MaximumKilobytes;
Console::WriteLine( " Maximum size = \t {0} kilobytes", sizeKB );
Console::WriteLine( " Overflow setting = \t {0}", e->OverflowAction );
switch ( e->OverflowAction )
{
case OverflowAction::OverwriteOlder:
Console::WriteLine( "\t Entries are retained a minimum of {0} days.", e->MinimumRetentionDays );
break;
case OverflowAction::DoNotOverwrite:
Console::WriteLine( "\t Older entries are not overwritten." );
break;
case OverflowAction::OverwriteAsNeeded:
Console::WriteLine( "\t If number of entries equals max size limit, a new event log entry overwrites the oldest entry." );
break;
default:
break;
}
}
}
static void DisplayEventLogProperties()
{
// Iterate through the current set of event log files,
// displaying the property settings for each file.
EventLog[] eventLogs = EventLog.GetEventLogs();
foreach (EventLog e in eventLogs)
{
Int64 sizeKB = 0;
Console.WriteLine();
Console.WriteLine("{0}:", e.LogDisplayName);
Console.WriteLine(" Log name = \t\t {0}", e.Log);
Console.WriteLine(" Number of event log entries = {0}", e.Entries.Count.ToString());
// Determine if there is an event log file for this event log.
RegistryKey regEventLog = Registry.LocalMachine.OpenSubKey("System\\CurrentControlSet\\Services\\EventLog\\" + e.Log);
if (regEventLog != null)
{
Object temp = regEventLog.GetValue("File");
if (temp != null)
{
Console.WriteLine(" Log file path = \t {0}", temp.ToString());
FileInfo file = new FileInfo(temp.ToString());
// Get the current size of the event log file.
if (file.Exists)
{
sizeKB = file.Length / 1024;
if ((file.Length % 1024) != 0)
{
sizeKB++;
}
Console.WriteLine(" Current size = \t {0} kilobytes", sizeKB.ToString());
}
}
else
{
Console.WriteLine(" Log file path = \t <not set>");
}
}
// Display the maximum size and overflow settings.
sizeKB = e.MaximumKilobytes;
Console.WriteLine(" Maximum size = \t {0} kilobytes", sizeKB.ToString());
Console.WriteLine(" Overflow setting = \t {0}", e.OverflowAction.ToString());
switch (e.OverflowAction)
{
case OverflowAction.OverwriteOlder:
Console.WriteLine("\t Entries are retained a minimum of {0} days.",
e.MinimumRetentionDays);
break;
case OverflowAction.DoNotOverwrite:
Console.WriteLine("\t Older entries are not overwritten.");
break;
case OverflowAction.OverwriteAsNeeded:
Console.WriteLine("\t If number of entries equals max size limit, a new event log entry overwrites the oldest entry.");
break;
default:
break;
}
}
}
Shared Sub DisplayEventLogProperties()
' Iterate through the current set of event log files,
' displaying the property settings for each file.
Dim eventLogs As EventLog() = EventLog.GetEventLogs()
Dim e As EventLog
For Each e In eventLogs
Dim sizeKB As Int64 = 0
Console.WriteLine()
Console.WriteLine("{0}:", e.LogDisplayName)
Console.WriteLine(" Log name = " + ControlChars.Tab _
+ ControlChars.Tab + " {0}", e.Log)
Console.WriteLine(" Number of event log entries = {0}", e.Entries.Count.ToString())
' Determine if there is an event log file for this event log.
Dim regEventLog As RegistryKey
regEventLog = Registry.LocalMachine.OpenSubKey( _
("System\CurrentControlSet\Services\EventLog\" + e.Log))
If Not (regEventLog Is Nothing) Then
Dim temp As Object = regEventLog.GetValue("File")
If Not (temp Is Nothing) Then
Console.WriteLine(" Log file path = " + ControlChars.Tab _
+ " {0}", temp.ToString())
Dim file As New FileInfo(temp.ToString())
' Get the current size of the event log file.
If file.Exists Then
sizeKB = file.Length / 1024
If file.Length Mod 1024 <> 0 Then
sizeKB += 1
End If
Console.WriteLine(" Current size = " + ControlChars.Tab _
+ " {0} kilobytes", sizeKB.ToString())
End If
Else
Console.WriteLine(" Log file path = " + ControlChars.Tab _
+ " <not set>")
End If
End If
' Display the maximum size and overflow settings.
sizeKB = e.MaximumKilobytes
Console.WriteLine(" Maximum size = " + ControlChars.Tab _
+ " {0} kilobytes", sizeKB.ToString())
Console.WriteLine(" Overflow setting = " + ControlChars.Tab _
+ " {0}", e.OverflowAction.ToString())
Select Case e.OverflowAction
Case OverflowAction.OverwriteOlder
Console.WriteLine(ControlChars.Tab + _
" Entries are retained a minimum of {0} days.", _
e.MinimumRetentionDays)
Case OverflowAction.DoNotOverwrite
Console.WriteLine(ControlChars.Tab + _
" Older entries are not overwritten.")
Case OverflowAction.OverwriteAsNeeded
Console.WriteLine(ControlChars.Tab + _
" If number of entries equals max size limit, a new event log entry overwrites the oldest entry.")
Case Else
End Select
Next e
End Sub
Keterangan
Log peristiwa tumbuh dalam ukuran saat peristiwa baru ditulis kepada mereka. Setiap log peristiwa memiliki batas ukuran maksimum yang dikonfigurasi; MaximumKilobytes properti menentukan jumlah maksimum kilobyte yang diizinkan untuk ukuran file log peristiwa.
OverflowAction Gunakan nilai properti untuk memeriksa perilaku luapan yang dikonfigurasi untuk log peristiwa pada ukuran maksimumnya. ModifyOverflowPolicy Gunakan metode untuk mengubah perilaku luapan untuk log peristiwa.
Catatan
Perilaku luapan hanya berlaku ketika log peristiwa mencapai ukuran file maksimumnya. Perilaku luapan tidak memengaruhi penulisan entri baru ke log yang dapat mengakomodasi entri log peristiwa tambahan.